Trees Matter! Bringing lasting benefits to people in towns

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Trees Matter! Bringing lasting benefits to people in towns
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        Trees Matter!
        Bringing lasting benefits
        to people in towns
Trees Matter! Bringing lasting benefits to people in towns
trees matter [2colour]          21/3/05       3:53 pm      Page 2

     Introduction                                                                                                                                                     Summary of
     Why we need                                                                                                                                                      benefits
     more trees in towns
     and cities

     Trees are an important part of                                                                                                                                   Trees and woodlands make a              Page 4 – 5                                              Page 10
     our natural life support system: they                                                                                                                            very positive contribution to           A more moderate climate:                                Useful products:
     have a vital role to play in the                                                                                                                                 sustainable urban living. What is       The shelter and shade from trees can save up to         even in towns, trees yield traditional products
     sustainability of our towns and cities                                                                                                                           more, investment in well-managed        10% of the energy needed to heat and cool               such as timber, fruit and horticultural mulch,
     and we need to take better care of                                                                                                                               greenspace can deliver many             nearby buildings. They also reduce the effects of       whilst renewable non-fossil fuel, high-value
     them, both now and in the future.                                                                                                                                different benefits at the same time.    air pollution and make outdoor spaces much              chemicals and pharmaceuticals may be the wood
                                                                                                                                                                                                              more comfortable.                                       products of the future.
                                                                                                                                                                      Trees in towns can improve public
     Until quite recently, the values we attached to
                                                                                                                                                                      health whilst also moderating the       The leaves and twigs of trees slow down the rate
                                                                                                                                                                                                                                                                      Page 11
     trees and woods were very straightforward. In                                                                                                                                                            at which rainwater hits the ground and this helps
     the countryside they produced timber and some
                                                                                                                                                                      local impact of climate change,
                                                                                                                                                                                                              to reduce the likelihood of localised flash flooding.   Richer and more accessible
     habitat for wildlife, whilst in the towns they were                                                                                                              boosting wildlife and reinforcing                                                               wildlife:
     valued almost entirely for the way they looked.                                                                                                                  the distinctive character of a place.   Trees absorb carbon dioxide as they grow and the        trees play a vital role in the urban ecosystem, by
                                                                                                                                                                      Here are just a few of the reasons      carbon that they store in their wood helps to           helping to support a great variety of wildlife
     Now there is a growing recognition that trees                                                                                                                    why Trees Matter! They can              reduce the rate of global warming.                      which people can enjoy close to home.
     and woods can provide a whole range of
                                                                                                                                                                      provide the following multi-
     multifunctional contributions to environmental,
                                                                                                                                                                      functional benefits for people:         Page 6 – 7                                              Page 13
     social and economic sustainability.
                                                           Trees Matter! provides a comprehensive                Trees Matter! has been produced by the                                                       Healthier lives:                                        Enhanced landscape quality
     Trees and woods help to improve the quality of        review of the benefits which can come from urban      National Urban Forestry Unit (NUFU) in                                                       by filtering polluted air, reducing chemical smog       Trees and woods can bring out the best in an
     life for the millions of people who live and work     trees and woods. This is supported by reference to    partnership with Trees for Cities and with                                                   formation, shading out harmful solar radiation          area’s local character. They provide a sense of
     in urban areas, and since ours is among the most      scientific research from around the world. Since      financial support from the Landscape, Access and                                             and providing an attractive, calming setting for        long-term stability and a living link between the
     urbanised societies in the world, the UK is a very    the first edition was published in 1998 there has     Recreation division of the Countryside Agency,                                               recreation, trees can have a positive effect on the     past, the present and the future.
     good place to show how the urban forest can           been some increase in the UK evidence base, but       the Rees Jeffreys Road Fund and the Office of the                                            incidence of asthma, skin cancer and many stress
                                                                                                                                                                                                                                                                      Trees soften the landscape of hard-edged towns
     contribute to sustainable development.                the majority of references are still from overseas,   Deputy Prime Minister.                                                                       related illnesses.
                                                                                                                                                                                                                                                                      and cities, making them greener, more comfortable
                                                           suggesting that we need to take the study of our                                                                                                                                                           and more attractive.
     The multiple benefits of urban and community          own trees and woodlands much more seriously.          We cannot afford to lose the benefits that trees                                             Page 8
     forestry are strongly advocated in the Countryside                                                          and woodlands bring to those who live and work                                               A more successful local and                             Page 14
     Agency's joint vision with Groundwork 'The            Most people agree that trees are a good thing,        in towns. Please use Trees Matter! to persuade                                               regional economy:
     countryside in and around towns'1, which              and yet we see them starved of natural food and       as many people as possible that we must act now                                                                                                      More sustainable communities:
                                                                                                                                                                                                              trees help to create jobs and increase productivity
     highlights the importance of multifunctionality in    water, damaged at their roots by earthworks,          to make sure there will be a thriving urban forest                                                                                                   the landscape is the place where people meet.
                                                                                                                                                                                                              and innovation. They encourage inward
     greenspace planning, a principle that is now          felled for development, casually vandalised or        for future generations to enjoy.                                                                                                                     When communities play an active part in caring
                                                                                                                                                                                                              investment and can increase property values by
     beginning to be widely recognised.                    insensitively pruned. Many of the most significant                                                                                                                                                         for their local trees and woods, this helps to build
                                                                                                                                                                                                              up to 18%.
                                                           trees in our towns and cities were planted more                                                                                                                                                            more confidence and shared enjoyment.
                                                           than a century ago, so although this living legacy                                                                                                 Page 9
                                                           is wonderful, it is under serious pressure and in
                                                           steep decline. With care, we can continue to                                                                                                       Land stabilisation and
                                                           enjoy it for a few years yet, but we also need an                                                                                                  reclamation:
                                                           extensive programme of replacement planting to                                                                                                     tree roots help to bind the soil together and
                                                           provide the trees and woodlands for the future                                                                                                     prevent erosion. Some trees can also clean up
                                                           that will match the vision of the past.                                                                                                            contaminated land.

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     A better local
     climate
                                                                                                                                                                      The tree canopy acts a s
                                                                                                                                                                      a natural ‘umbrella’,
                                                                                                                                                                      with leaves and twigs
                                                                                                                                                                      slowing the rate at
                                                                                                                                                                      which rainwater reaches
                                                                                                                                                                      the ground

                                             Carbon dioxide is one of the world’s    There is much more immediate benefit to                                          Flash-flood protection
                                                                                     be gained from the contribution that trees in                                    The canopy of the urban forest plays a
                                             major greenhouse gases. As trees
                                                                                     towns can make to improving climate at a                                         valuable role in moderating rainstorm impact.
                                             grow they absorb and store the          local level. People want to live and work in                                     The rain is intercepted by the leaves and then
                                             carbon in their timber, making          comfortable surroundings and trees and                                           evaporates or drips more gradually to the
                                             forests important in the fight to       woodlands help to moderate the local climate.                                    ground. This lessens the likelihood of flash-
                                             reduce the rate of global climate       This seems likely to become increasingly                                         flooding and helps to conserve ground water.7
                                             change. However, since it takes a       important since scientists are predicting far                                    Using trees in towns as part of sustainable urban
                                                                                     more extreme weather patterns, increased risk                                    drainage systems (SUDS),8,9 is a self-sustaining
                                             wood the size of a football pitch to
                                                                                     of winter flooding and a greater likelihood of                                   and cost-effective storm-water management
                                             absorb the carbon emissions of an       summer drought. Here are some of the ways in                                     strategy which should be used to complement
                                             average person in the UK 2, this role   which trees help to moderate the local climate:                                  much more expensive hard-engineering options.
                                             for trees in towns will always be                                                                                        The study of a river catchment in south-east
                                             strictly limited.3 Efficient use of     Shelter                                                                          Northumberland estimated the value of existing
                                             energy and transport offer more         Trees slow down wind speeds substantially 4,                                     woodlands for flood alleviation at around
                                                                                     and so help to shelter urban open spaces. They                                   £1,200 per ha. This figure is based on savings to
                                             substantial opportunities for those
                                                                                     also help to reduce air turbulence, especially                                   the engineering costs of flood control.10
                                             who live and work in towns to           around buildings, making towns and cities more
                                             lessen their effect on climate          comfortable for people. This is especially                                       A study conducted by the organisation American
                                             change. Nevertheless, all extra trees   important for the elderly and the very young.                                    Forests estimated that a 20% loss of trees and
                                             are valuable and their role in          The shelter from trees and woods in towns also                                   other vegetation in the Atlanta metropolitan
                                             absorbing carbon is certainly           reduces the heating and air-conditioning costs of                                region would produce a one billion cubic foot
                                                                                     buildings. This can save as much as 10% of                                       increase in stormwater run-off.11 It was
                                             symbolically important.
                                                                                     annual energy consumption, and cut down the                                      calculated that it would cost at least $2 billion to
                                                                                     air pollution caused by burning fossil fuels.5                                   build containment facilities capable of storing
                                                                                                                                                                      that quantity of excess water. This provides a
                                                                                     Cooling the air                                                                  strong argument for retaining and planting trees
                                                                                     As trees lose moisture from their leaves, the                                    in cities.
                                                                                     surrounding air is cooled. This, coupled with the
                                                                                     shade they cast, and the heat reflected upwards                                  Another American organisation, Tree People, has
                                                                                     from their leaves, significantly reduces summer                                  studied the impact of urban forestry on
                                                                                     air temperature in towns.6                                                       stormwater management12 and air quality in the
                                                                                                                                                                      city of Los Angeles. Here, new woodland is being
                                                                                                                                                                      carefully positioned within urban river catchments
                                                                                                                                                                      in order to optimise its impact on stormwater
                                                                                                                                                                      runoff.13

                                                                                                                                                  Urban flooding is
                                                                                                                                            increasing with climate
                                                                                                                                                 change. The softer
                                                                                                                                         elements of the landscape
                                                                                                                                            can provide sustainable
                                                                                     A belt of woodland                                            flood protection
                                                                                     creates a more sheltered
                                                                                     environment over a
                                                                                     distance of up to 20
                                                                                     times its height

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     Healthier lives

                                                                                                                                                                   Shade is increasingly      Emotional well-being                                       Encouraging physical exercise
                                                    Stress and a lack of physical                           At street level ozone (O3) is a smog-forming gas
                                                                                                                                                                   important for protection
                                                    exercise, polluted air and ultra-                       which is produced when vehicle exhaust fumes           against harmful solar      The popular belief that people feel better in              In an increasingly sedentary, vehicle-bound
                                                                                                            are exposed to strong sunlight. Ozone can irritate     radiation                  green, leafy surroundings is now supported by a            society, lack of physical exercise is a very serious
                                                    violet solar radiation all cause
                                                                                                            the lungs and aggravate symptons such as                                          growing amount of scientific evidence. The stress          threat to public health. It is directly linked to such
                                                    significant damage to the health                        coughing and chest pain. When concentrations                                      of life in urban Britain is a very significant factor in   issues as heart disease and diabetes, whilst a
                                                    of the nation. The trees and                            are high it can also sting the eyes, nose and                                     the health of the nation, and many people find a           general lack of mobility increases the risk of falls
                                                    woods in towns can help to reduce                       throat.19 The cooling and shading effect of urban                                 green environment more relaxing. Urban                     and fractures, particularly in old age. A well-treed
                                                    these problems considerably in                          trees helps to reduce the rate of ozone                                           residents suffering from stress have been shown            urban landscape is more sheltered, more
                                                    the following ways:                                     production.20                                                                     to experience less anxiety and insecurity when             stimulating, and more likely to encourage local
                                                                                                                                                                                              they have a view of trees, and the physical signs          journeys on foot or bike, thus making active
                                                    Cleaner air                                             Noise reduction                                                                   of stress such as muscle tension and pulse rate            outdoor exercise more enjoyable. Since the air is
                                                    The UK Government estimates that more than              Noise pollution is a major cause of stress and trees                              are measurably reduced within as little as 3 to 4          also less polluted when filtered by trees, physical
                                                    24,000 people die prematurely each year as              can reduce the problem in two ways. Firstly, if a                                 minutes of a stressed person moving into leafy             exercise is made healthier still.
                                                    a result of air pollution.14 When the fine sooty        belt of trees is dense enough it can reduce noise                                 green surroundings.25 26 27 28
                                                    particles known as PM10s are carried into the           levels by as much as 6-8 decibels for every 30                                                                                               The growing national concern with obesity and
                                                    lungs they have a tendency to make chronic              metres width of woodland.21 This can be cheaper                                   Hospital patients with a view of greenery have             other exercise-related health problems in the UK
                                                    diseases such as asthma and bronchitis worse.           and more attractive than an earth mound, noise                                    been shown to recover more rapidly, and require            has stimulated a number of initiatives including
                                                    The canopies of trees act as a physical filter,         barrier or fence.22 Secondly, there is evidence that                              less pain-killing medication than those who only           BTCV’s Green Gym. This programme encourages
                                                    trapping dust and PM10s on the surface of their         simply hiding the source of some kinds of noise                                   have a treeless view of buildings. 29 These findings       people to stay fit by undertaking practical
                                                    twigs and leaves. They are also very effective for      can make them seem less intrusive and in these                                    are echoed in two studies of prisoners who                 conservation work such as tree planting.33
     Air pollution is a major                       filtering other toxic particles such as lead.15 The     circumstances the visual screening effect of trees                                occupied cells with or without a natural view.
     public health issue and
     trees trap and absorb                          trees of Chicago, USA have been shown to                can also be significant.23                                                        There were fewer complaints of illness among               Walking the Way to Health (WHI), 34 an initiative
     certain pollutants very                        remove 10.8 tonnes of PM10s on an average                                                                                                 those inmates with a green outlook.30 31                   of the Landscape, Access and Recreation division
     effectively                                    summer's day.16 Whilst a study in the West              Shade                                                                                                                                        of the Countryside Agency, promotes the health
                                                    Midlands, UK, suggests that doubling tree cover         Excessive exposure to the sun is being seen                                       Tree related therapy                                       benefits of regular brisk walking. These include
                                                    across the region would reduce the concentration        increasingly as a serious threat to health. The                                   Trees also have a more active role to play in              improved weight control, extended life expectancy
                                                    of fine PM10 particles by 25%. This could prevent       thinning of the protective ozone layer, coupled                                   therapy. Tree and woodland-related activities              and reduced risks of coronary heart disease,
                                                    140 air pollution related premature deaths in the       with more extreme local weather patterns, is                                      such as fruit-picking, basket-making and plant             strokes, diabetes, high blood pressure, bowel
                                                    region every year.17                                    being linked to the increased incidence of skin                                   propagation are used to develop dexterity and              cancer and osteoporosis.
                                                                                                            melanomas - now the most rapidly increasing                                       co-ordination, and the therapeutic benefit
                                                    Gases such as carbon monoxide (CO), nitrogen            form of cancer in the UK.                                                         appears to be made all the greater because of the          The cost of physical inactivity to the economy has
                                                    dioxide (NO2) and sulphur dioxide (SO2) are known                                                                                         contact with natural materials and living plants.32        been estimated at £8.2 billion in England.35 Urban
                                                    to cause respiratory problems and can also              The dappled shade of trees provides a useful                                                                                                 greenspace can make a cost-saving contribution to
                                                    increase sensitivity to allergens. Trees absorb these   barrier to this harmful ultra-violet radiation, as                                                                                           the National Health Service and the wider economy
                                                    gases through their leaves. In the Greenwood            well as reducing heat-induced stress amongst                                                                                                 by providing a safe and stimulating setting for
                                                    Community Forest, near Nottingham, it has been          people and animals. Provision of adequate                                                                                                    physical exercise. These benefits can be very
                                                    estimated that the existing woodland reduces            summer shade is seen as particularly important in                                 Green surroundings                                         significant. For instance, the public’s activity in a
                                                                                                                                                                                              make regular exercise
                                                    concentrations of SO2 and NO2 in the air by             car parks, in school grounds 24 and around                                        more enjoyable and                                         park in Portsmouth has been estimated to save the
                                                    4%-5%.18                                                retirement homes.                                                                 beneficial                                                 local economy £4.4 million each year.36

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     The local                                                                                                                   Improving
     and regional                                                                                                                difficult urban
     economy                                                                                                                     land

     People are attracted to live, work             Direct employment                                                            Land is at a premium in the UK, and
                                                    People are employed as nursery workers,
     and invest in green surroundings, so                                                                                        in the most heavily populated
                                                    landscape and arboriculture contractors and
     a commitment to the trees and                  tree officers in the production, planting and
                                                                                                                                 regions there is a long history of
     woods in towns is a very cost-                 aftercare of trees and woods in towns. There is                              using, abusing and then reusing it.
     efficient way of underpinning the              also an increasing amount of work for those                                  Some trees have a remarkable
     local and regional economy.37 38               such as rangers, educational play leaders and                                capacity for growing in hostile
     Some people will be employed                   conservation officers who help local communities                             conditions. If chosen wisely and
                                                    to gain the maximum enjoyment from the woods
     directly in expanding and managing                                                                                          planted at a young and adaptable
                                                    on their doorsteps.
     the urban forest, but green                                                                                                 age, then they can bring wasteland                     Derelict industrial land is
                                                                                                                                                                                           often colonised quite
     infrastructure has a more significant          Best value greenspace                                                        back into productive use.                                     naturally by trees
     economic role to play in creating              management
     a stimulating working environment,             Much of the open space in towns is managed                                   Soil stabilisation                                                                   Where this land is contaminated, particularly with
     improving the health of the                    as close-mown grass. This tends to be poorly                                 Tree roots help to bind and stabilise the soil and                                   heavy metals such as lead, zinc or nickel, some
                                                    used and expensive to maintain. Developing                                   this, combined with the effect the leaves and                                        trees are capable of absorbing the pollutants
     workforce and attracting inward
                                                    woodland as an alternative to grassland                                      branches have on reducing the impact of                                              through the process of phytoextraction. By
     investment.                                    reduces maintenance costs whilst providing                                   rainstorms, helps to lessen the rate of soil erosion                                 repeatedly felling and removing the timber, the
                                                    recreational open space which benefits a wider                               and downstream sedimentation. This physical                                          level of contamination can gradually be reduced.47
                                                    range of people. 39 40                                                       protection brings significant economic benefits for                                  At the same time, the movement of pollution by
                                                                                                                                 highway drainage and wastewater management.                                          leaching and erosion is slowed down.
                                                                                                        Managing the urban
                                                    Inward investment                                   forest provides direct   Studies in Maryland, USA, have shown that the
                                                    A tree-rich urban landscape is increasingly              employment for      annual sediment yield from treeless urban areas                                      One of the simplest and most effective roles
                                                    recognised as an important requirement for                   local people    was as much as 1 000 times greater than that from                                    that trees in towns can play is as a living screen. A
                                                    successful modern businesses. It is therefore                                wooded urban areas - 50 000 tonnes compared to                                       relatively narrow belt of trees around the
                                                    important to care for the established trees,                                 50 tonnes per square mile.45                                                         boundary of a bare development site can make it
                                                    but the environmental advantage can be                                                                                                                            more attractive prior to building, improve the
                                                    strengthened further by planting temporary                                   Land reclamation                                                                     prospects for regeneration and provide a green
                                                    woodland on vacant development sites. This                                   Many towns and cities have areas of derelict                                         and pleasant backdrop when the land eventually
                                                    helps to screen unsightly land and greatly                                   and degraded land - a legacy of past industrial                                      becomes a built development.
                                                    improves the image of industrial areas which are                             development, waste disposal and mineral
                                                    undergoing urban renewal.41 An attractive green                              exploitation. Establishing trees and woodland
                                                    environmental setting can also deliver secondary                             on this wasteland is a practical and very cost-
                                                    economic benefits in the form of increased                                   effective option46 which can greatly improve the
                                                    commercial rents and local tax revenues.42                                   appearance of derelict sites, enhance their
                                                                                                                                 value to wildlife and make them an asset for
     People will pay a
     premium for property in                        Property values                                                              recreation.
     an attractive well-treed                       Several studies, in North America and more
     neighbourhood                                  recently in the UK, have shown that average house                                                                                                                 Adopting an ecological
                                                    prices are between 5% 39 43 and 18% 44 82 higher                                                                                                                  approach to the
                                                                                                                                                                                                                      planting of trees results
                                                    where property is associated with mature trees.                                                                                                                   in cost- effective,
                                                                                                                                                                                                                      sustainable greening

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     Useful products                                                                                                                                                     Enjoyable access
                                                                                                                                                                         to wildlife

                                                                                                                Food                                                                                                                                                                   Many popular garden birds are actually woodland
                                                       Although timber production has                                                                                    Concern for nature conservation                                                                               species. They thrive in the urban forest
                                                       so far been of little commercial                         Trees can successfully produce fruit such as pears,
                                                                                                                                                                         is reflected in the Government’s
                                                                                                                apples, plums and cherries in the UK and they can                                                                                                                      ground flora and leaf litter all favouring
                                                       significance in the urban forest,                        also yield crops of nuts. Wines and syrups can
                                                                                                                                                                         Biodiversity Action Plan and is                                                                               particular species of plants and animals 61 62 and
                                                       there are various by-products,                           also be manufactured from the bark and sap of            reaffirmed by various international                                                                           there is wildlife value in isolated ancient trees,
                                                       such as charcoal, woodchip and                           species such as birch and maple, and urban trees         conventions and conservation                                                                                  as well as those which form a part of
                                                       green waste compost which are                            such as lime and sycamore are important to               policies. Wildlife is also enormously                                                                         woodlands. Fallen logs and branches provide
                                                       playing an increasingly important                        beekeepers for local honey production. The fruit         popular with the general public,                                                                              important habitat for insects and fungi.63
                                                       part in the economics of urban                           trees in domestic gardens, allotments and school
                                                                                                                                                                         with over 2 million members of the
                                                       forestry management.                                     orchards may not be economically significant, but                                                                                                                      Public enjoyment
                                                                                                                they provide a valuable source of locally
                                                                                                                                                                         various UK nature conservation                                                                                Urban woodland is, by definition, very close
                                                       Timber and wood products                                 harvested fresh food. This is frequently grown           charities and a huge market                                                                                   to where most people live and work. It offers
                                                       85% of the timber used in the UK is imported.48          organically and eaten by those who cultivate and         for wildlife related products such as                                                                         particularly convenient opportunities for
                                                       Trees in towns can yield both timber for                 gather it. In our urban society that experience is       bird-feeders, nest-boxes, books                                                                               environmental education and popular pastimes
                                                       construction and very high quality fine woods for        increasingly important.                                  and binoculars.                                                                                               such as bird-watching53 and it also generates
                                                       furniture, crafts and even veneers, but the                                                                                                                                                                                     a great deal of the wildlife which people enjoy in
                                                       quantities are always likely to be small.                Chemical extracts                                        Much of Britain’s native wildlife has its origins in   Re-establishing vegetation                             their private gardens.64
                                                                                                                Tannins, dyes and turpentine have been extracted         the natural broadleaved woodland of the British        All vegetation is of some benefit to wildlife.
                                                       Woodchip and bark are increasingly used as a soil-       from trees for centuries, whilst over 20 species of      Isles. As a consequence, the trees and woods in        However, native plants which have been                 It is not always necessary to have direct
                                                       covering mulch in landscape schemes and for the          British trees and shrubs are known to possess            towns provide extremely successful habitats.           established locally for a long time are known to       physical access in order to enjoy woodland
                                                       surfacing of children's play areas. Compost is           medicinal properties.51 Yew shoots, for instance,        They support a great diversity of popular wildlife     support greater numbers of invertebrates and           wildlife. People can be satisfied simply by
                                                       increasingly in demand as an alternative to peat         are being harvested commercially as a source of          and an opportunity for people to enjoy nature          these in turn support more birds and other             knowing that wildlife exists around them,65
                                                       and is being produced from municipal green               the cancer drug taxotere.52 Now, new technology          on the doorstep.53                                     creatures.55 56 Favouring native species of trees      and undisturbed sanctuary areas can increase
                                                       waste. The process is improved by the addition of        is making it possible to extract far more of the                                                                and shrubs in new planting tends to encourage          wildlife populations for the adjacent
                                                       shredded waste wood prunings and autumn                  chemical constituents of timber, for use in the          A complement to other                                  more wildlife.                                         neighbourhood.66 67
                                                       leaves. Barbecue charcoal from UK urban                  manufacture of solvents, plastics, adhesives,            wildlife habitats
                                                       woodlands is now available commercially.                 preservatives and fibres. So far, there is very little   The greatest diversity of wildlife tends to be         Increasing biodiversity
                                                                                                                tradition of extraction from the urban forest, but in    found where woodland, wetland, grassland and           Different kinds of wildlife will thrive in different
                                                       Renewable energy crops                                   the future this may offer a more attractive              other habitats are interwoven. The woodland            kinds of woodland. For example, whilst young
                                                       Concern about pollution from fossil fuels and            commercial proposition.                                  provides shelter, screening, seclusion and             pioneer thickets of seedling birch and willow
                                                       radioactive nuclear waste is leading to increased                                                                 reduced disturbance. Many species depend on a          are extremely valuable for summer bird
                                                       demand for renewable sources of fuel. Fast                                                                        combination of open glades and woodland                migrants such as warblers, the dense scrub
                                                       growing wood biomass crops of willow are one                                                                      cover54 and the woodland in towns can provide          woodland of hawthorn and blackthorn
                                                       such developing source. Some of these biomass                                                                     a strategic link between one natural green             provides important cover for songbirds and a
                                                       crops are being planted in urban areas, close to the                                                              space and the next.                                    rich supply of food for berry-eating winter
                                                       energy end-users.49 Wood energy cropping can                                                                                                                             visitors such as redwings and fieldfares.57 Long-
                                 Fruit, charcoal and
                          woodchip are just three of   provide local jobs and a local fuel supply and it also                                                                                                                   established ancient woodland is much more
                         the products that can come    has the potential to provide an interim productive                                                                                                                       likely to contain the hollow trees and standing
                               from trees ain towns    use on land zoned for eventual built development.                                                                                                                        dead timber needed by species such as bats,
                                                                                                                                                                                                                                                                                                                  Trees can complement a
                                                       Waste wood chip produced as a by-product of the                                                                                                                          wood-boring beetles, tawny owls and                                               mosaic of other habitats
                                                       management of urban trees is increasingly being                                                                                                                          woodpeckers.58 59 60 The structure of a woodland
                                                       used to provide heating in wood-fuelled boilers.50                                                                                                                       is also influential, with tree canopy, shrub layer,

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                                                       Enhancing
                                                       landscapes

                                                       Many studies have confirmed               The softening effect of trees
                                                                                                 Trees and woodlands help to soften and
                                                       the public’s preference for urban
                                                                                                 complement the built environment, making it
                                                       landscapes with a rich tree cover. 68     greener and more attractive. This is particularly the
                                                       The greenness of the UK’s towns           case where new planting is integrated into the
                                                       and cities is part of the country’s       established urban forest as part of the design
                                                       appeal to tourists, and it is an aspect   process for new built development, transport
                                                       of environmental quality which is a       corridors and other elements of urban
                                                                                                 regeneration. The beneficial impact of trees and
                                                       positive influence in encouraging
                                                                                                 woods is greatest where development is planned
                                                       inward investment. In new built           so trees can dominate the skyline.
                                                       development there has been a
                                                       move in recent years towards the          Trees as a link with the past
                                                       more careful conservation of              Trees can live for centuries, and many older
                                                       existing trees and woodland as a          trees have important cultural or historical
                                                                                                 significance to individuals, local communities and,
                                                       way of increasing the value of new                                                                         Our cultural links with trees
                                                                                                 sometimes, even to the population as a whole.69 It
                                                       development and of reinforcing            is particularly important to identify and respect the
                                                                                                                                                                         crop up everywhere

                                                       local landscape character.                veteran trees in any landscape.70

                                                                                                 There is a long tradition of using landmark
                                                                                                 trees as boundary markers, meeting places or
                                                                                                 prominent specimens. The role of trees in civic
                                                                                                 design is an important aspect of the British urban
                                                                                                 heritage, with trees used in formal avenues and as
                                                                                                 a complement to significant buildings. It is
                                                                                                 important for the cultural past to influence
                                                                                                 decisions about the future.

                                                                                                 Reinforcing local distinctiveness
                                                                                                 Trees can strengthen the distinctive local character
                                                                                                 of a place. The natural trees and woodlands of an
                                                                                                 area tend to reflect the local climate, soils and land
                                                                                                 form. They help to create a sense of continuity and
                                                                                                 timelessness which can counter the uniformity of
                                                                                                                                                            Many of the UK’s most prestigious
                                                                                                 so much new development, encouraging greater             landscapes would be transformed if
                                                                                                 pride amongst local people.                                             they lost their trees

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     More sustainable                                                                                                                                                        Conclusions
     communities

                                                               The quality of urban living is                          By far the most popular individual recreational             Trees are not an optional extra - they   Trees are an economic bargain, but the benefits
                                                                                                                       activity in the UK is relaxing out of doors.76                                                       they bring are difficult to evaluate. Nevertheless,
                                                               improved by a close and friendly                                                                                    deserve to be at the heart of policies
                                                                                                                       Traditionally, many of the people who live or work                                                   the financial benefits which are clearly attributable
                                                               relationship with neighbours.                           in towns enjoy their recreational ‘countryside’
                                                                                                                                                                                   for health, economic regeneration,       to trees will generally far outweigh the cost of
                                                               Trees and woods can help to                             experience in parks, public recreation grounds              environmental protection, nature         their planting and continuing aftercare.79
                                                               bring people together and                               and informal urban wildspace. Trees and                     conservation, education and
                                                               strengthen communities, 66 whilst                       woodlands greatly enhance this experience, with             community development. The UK            Despite the benefits they bring, the care of trees
                                                               the involvement of people in the                        the added environmental benefit that there is no            has one of the most urban societies      and woods in towns is seriously under-funded in
                                                                                                                       need to use transport in order to get there.                                                         the UK. Many mature trees are badly neglected or
                                                               practical care of local trees and                                                                                   in the world, and there is a pressing
                                                                                                                                                                                                                            insensitively treated, whilst the failure rates for
                                                               woods can help to build a                               Education
                                                                                                                                                                                   need to provide many more                new planting are often unacceptably high. There
                                                               stronger sense of 'ownership'                           Trees and woodlands can be used as an                       people with the benefits that can        needs to be far greater commitment to
                                                               and civic pride.                                        educational resource. It is possible to relate them         come from trees and woodland on          professional aftercare and more encouragement
                                                                                                                       to the national curriculum and to use them in               their doorstep.                          for local communities to play an active part in
     Growing and planting trees is a popular way of bringing   Public involvement                                      teaching a wide range of topics, from biology                                                        long-term management.
     communities together to improve their surroundings        People gain a great deal of satisfaction from           and geography to maths, languages, art and
                                                               growing and planting trees, caring for them and         design.77 Children (and adults) also learn through                                                   If more people demanded the benefits that
                                                               sharing that experience with others. As Trees for       play, adventure and exploration. Easy access to                                                      can come from healthy trees and woodland on
                                                               Cities have experienced through their Trees for         trees and woodland provides an invaluable                                                            their doorstep80 81 then the policy-makers and
                                                               London project, a strong sense of ownership             facility for both formal and informal learning in                                                    professional practitioners would be much
                                                               develops between individuals and their personal         the urban environment.                                                                               more likely to find new ways of weaving urban
                                                               trees, vandalism is often greatly reduced, and the                                                                                                           forests into the heart of their activities. We need
                                                               sense of individual and communal achievement            The Forestry Commission’s Forest Education                                                           more well documented models to add to the
                                                               builds confidence. Success with trees can help to       Initiative provides learning resources which use                                                     evidence quoted here. Most of all we need to
                                                               encourage people to deal with other shared              trees, forests and forest products. In addition, an                                                  take the urban forest much more seriously and to
                                                               aspects of the sustainable communities agenda.71 72     increasing number of Forest Schools are also                                                         plant the trees and woodlands which will grow to
                                                                                                                       being established which build self-esteem and                                                        form our legacy for people in the towns and cities
                                                               Popular landscapes                                      confidence through regular visits to special                                                         of the next century.
                                                               A major reason for people valuing woodlands is          woodland sites. Children learn to appreciate
                                                               the sense of tranquillity and enclosure which they      nature, to master tasks of increasing complexity
                                                               create, but at the same time this can also prompt       and acquire associated social skills.78
     Two satisfied customers in a free garden tree scheme!     a perceived threat to personal safety. Research
                                                               into public perception of urban fringe woodlands
                                                               shows that many of these fears can be alleviated
                                                               by designing and managing the woodland
                                                               landscape to include open structure, good sight
                                                               lines and waymarking.73 74 Employing the services
                                                               of rangers, play leaders and voluntary wardens
                                                               can make the woodland more popular and
                                                               reduce the sense of insecurity for those who visit.75

     14                                                                                                                                                                                                                                                                      15
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     16                                                                                                                                                                                                                                                          17
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        Effects of Urbanisation on Breeding Bird              Remarkable Trees, Weidenfeld & Nicolson,            practice in urban forestry
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     57 Fuller RJ (1995) Bird life of woodland and            to good management, English Nature,                 which describe best practice across the breadth
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     58 Kirby KJ & Duke CM (1993) Dead Wood                71 Sullivan WC & Kuo FE (1992) Do Trees                NUFU publications can be ordered online at
        Matters : The Ecology and Conservation of             Strengthen Urban Communities and Reduce             www.nufu.org.uk.
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     18
trees matter [2colour]           21/3/05       3:56 pm      Page 20

     Partners in this
     publication
     National Urban Forestry Unit                           The Landscape, Access and
     The National Urban Forestry Unit (NUFU) is an          Recreation division of the
     independent charity which works in partnership         Countryside Agency
     with organisations in the public, private and          The Landscape, Access and Recreation (LAR)
     voluntary sectors. Its main aim is to help create a    division of the Countryside Agency is working
     more tree-rich environment as an important means       with English Nature and the Rural Development
     of improving the quality of life for the millions of   Service as a confederation of partners. The
     people who live and work in towns and cities.          confederation paves the way for the creation of
                                                            a new integrated agency which, once the
                          National Urban Forestry Unit      necessary legislation has been enacted, will have
                       The Science Park, Stafford Road,     responsibility for biodiversity, landscape,
                        WOLVERHAMPTON WV10 9RT              sustainable management of the countryside and
                              Tel: +44 (0) 1902 828600      recreation and access.
                               Email: info@nufu.org.uk
                               Web: www.nufu.org.uk         Acknowledgements
                                                            This review was researched by the National Urban
     Trees for Cities                                       Forestry Unit and edited by Chris Baines. Its
     Trees for Cities is an independent charity that        publication has been made possible thanks
     plants trees and re-landscapes public spaces in        to the generous support of the Landscape, Access
     urban areas of greatest need. Its vision is to         and Recreation division of the Countryside
     stimulate a greening renaissance in cities around      Agency, Rees Jeffreys Road Fund and the Office of
     the world that will impact on global warming,          the Deputy Prime Minister’s Special Grants
     create vital wildlife habitats and beautify the        Programme.
     urban landscape, as well as encourage greater
     social cohesion through the active participation of    Photographs in this publication courtesy of Chris
     local people. A special effort is made to involve      Baines, the Landscape, Access and Recreation
     children and young people in the projects. The         division of the Countryside Agency, Midlands
     public can get involved by sponsoring trees,           Wood Fuel Ltd, National Urban Forestry Unit,
     registering as a volunteer, enrolling on training      Trees for Cities and Woodfall Wild Images.
     programmes and going to its dance party
     fundraisers.

                                        Trees for Cities
             Prince Consort Lodge, Kennington Park,
           Kennington Park Place, LONDON SE11 4AS
                           Tel: +44 (0) 207 587 1320

                                                                                                                © National Urban Forestry Unit 2005
                        Email: info@treesforcities.org
                        Web: www.treesforcities.org
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