Trees Matter! Bringing lasting benefits to people in towns
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trees matter [2colour] 21/3/05 3:52 pm Page 1 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. 2 3
trees matter [2colour] 21/3/05 3:53 pm Page 4 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 4 5
trees matter [2colour] 21/3/05 4:42 pm Page 6 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 6 7
trees matter [2colour] 21/3/05 3:54 pm Page 8 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 8 9
trees matter [2colour] 21/3/05 4:18 pm Page 10 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, 10 11
trees matter [2colour] 21/3/05 3:54 pm Page 12 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 13
trees matter [2colour] 21/3/05 3:55 pm Page 14 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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Available at Wood fuel heating for public buildings, at http://www.countryside.gov.uk/Publications/ Case for the Environment Research Study: 10 (2) 45 - 49 http://www.rspb.org.uk/Images/natural_fit_ Government Office for Yorkshire and the articles/Publication_tcm222090.asp Summary of Principal Findings, RSK 24 Learning through Landscapes (1992) full_version_tcm5-60619.pdf Humber, Leeds 2 See http://www.natenergy.org.uk/ co2mment.htm Environment Ltd., Helsby Trees in School Grounds, Southgate, 37 The Mersey Forest (1998) Invest in the 51 Bown D (1995) The Royal Horticultural 3 Broadmeadow, M & Matthews, R. 11 Soltis D (1997) Loss of trees increase Partridge Green, West Sussex Success of the Mersey Forest, unpublished Society Encyclopaedia of Herbs and Their Uses, (2003) Forests, Carbon and Climate Change: stormwater runoff in Atlanta, Water 25 National Urban Forestry Unit (1999) 38 Stevens D (1994) An Investigation of Dorling Kindersley, London the UK Contribution, Forestry Commission Engineering and Management 144 : 6 Trees and Healthy Living, National Approaches to Quantifying the Influence of 52 Aspinall P (1997) The Use of Taxotere as a Information Note 48, Forestry Commission, 12 Lipkis A (1999) Second Nature – Adapting Conference, Wolverhampton, UK, National Trees and other Vegetation Upon the Value Second-line Treatment of Anthracycline Edinburgh LA’s Landscape for Sustainable Living, Tree Urban Forestry Unit, Wolverhampton of Business Properties, University College of Resistant and Refractory Advanced Metastatic 4 Bernatsky A (1978) Tree Ecology and People, Beverly Hills, California. 26 Ulrich RS, Simmons RF, Losito BD, Fiority North Wales, unpublished MSc thesis Breast Cancer : An Evaluation Report, South Preservation, Elsevier, Amsterdam 13 See www.treepeople.org/trees E, Miles MA & Zeison M (1991) Stress 39 Anderson LM & Cordell HK (1988) East Institute of Public Health 5 Heisler GM (1986) Energy Savings with 14 H M Government (1998) UK Environmental Recovery During Exposure to Natural and Influence of Trees on Residential Property 53 Shaw WW, Mangum WR & Lyons JR Trees, Journal of Arboriculture, 12 (5) Accounts, HMSO, London Urban Environments, Journal of Values in Athens, Georgia : A Survey Based (1985) Residential Enjoyment of Wildlife 6 Huang YJ, Akbari H, Taha H & Rosenfeld 15 McPherson EG, Nowak DJ & Rowntree Environmental Psychology 11 : 201 -230 on Actual Sales Prices, Landscape and Urban Resources by Americans, Leisure Sciences AH (1987) The Potential of Vegetation in RA (1994) Chicago's Urban Forest Ecosystem : 27 Mudrak LY (1982) In The Environmental Planning 15 : 153 -164 7 (3) : 361 - 375 Reducing Summer Cooling Loads in Results of the Chicago Urban Forest Climate Benefits of Vegetation at a Global Local and 40 National Urban Forestry Unit (1998) 54 Ferris - Kaan (ed) (1995) The Ecology of Residential Buildings, Journal of Climate and Project, US Forest Service, General Technical Personal Level : A Review of the Literature, Trees or Turf? 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trees matter [2colour] 21/3/05 3:56 pm Page 18 References 56 Mills GS, Dunning JB & Bates JM (1989) 69 Pakenham T (1996) Meetings with Published case studies of best Effects of Urbanisation on Breeding Bird Remarkable Trees, Weidenfeld & Nicolson, practice in urban forestry Community Structure in South-western Desert London The National Urban Forestry Unit’s case studies of Habitats, The Condor 91: 416 - 428 70 Read H (ed) (2000) Veteran trees – a guide Urban Forestry in Practice are a series of booklets 57 Fuller RJ (1995) Bird life of woodland and to good management, English Nature, which describe best practice across the breadth forest, Cambridge University Press, Cambridge Peterborough of urban forestry. The case studies and other 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. Saproxylic Invertebrates in Britain, English Domestic Violence? Human Resources Nature Science No 7 English Nature, Research Laboratory Technology Bulletin, Peterborough University of Illinois, USA Useful web sites 59 Speight MCD (1989) Saproxylic 72 Shroeder HW (1987) Psychological Value American Forests Invertebrates and their Conservation, Nature of Urban Trees; Measurement, Meaning, www.americanforests.org and Environment Series No 42, Council of Imagination, In Phillips A F & Gangloff D J Arboricultural Association Europe, Strasbourg (eds) Proceedings of 3rd National Urban www.trees.org.uk 60 Corbet GB & Harris S (eds) (1991) Forestry Conference, Chicago, USA CABE Space Handbook of British Mammals, 3rd edition, 73 ENTEC (1997) Valuing Landscape Improvements www.cabespace.org.uk Blackwell Scientific Publications, Oxford in British Forests, ENTEC, Report to the Forestry European Forest Institute 61 Stearns F (1972) The City as Habitat for Commission www.efi.fi Wildlife and Man, in Detwyler R & Marcus 74 Burgess J (1995) Growing in Confidence, European Urban Forestry Research & MG (eds) Urbanisation and Environment, Countryside Commission, Cheltenham Information Centre Duxbury Press, Belmont, California 75 Bussey SC (1996) The Public Perceptions, www.fsl.dk/euforic 62 De Graaf RM & Wentworth JM (1986) Uses and Preferences of Urban Woodlands in Forest Research Avian Guild Structure and Habitat Redditch, University of Central England, www.forestresearch.gov.uk Associations in Suburban Bird Communities, unpublished PhD thesis Forestry Commission, The Urban Ecology 9: 399 - 412 76 Countryside Commission (1996) The UK www.forestry.gov.uk 63 Dudley N & Vallauri D (2004) Deadwood – Day Visit Survey, Countryside Commission, Institute of Chartered Foresters living forests, World Wide Fund for Nature, Northampton www.charteredforesters.org Gland. 77 Learning Thorough Landscapes (1996) International Society of Arboriculture 64 Rohde CLE & Kendle AD (1994) Human Using Plants in the National Curriculum, www.isa-uki.org Well-Being, Natural Landscapes and Wildlife Southgate, Partridge Green, West Sussex Landscape, Access and Recreation (LAR) in Urban Areas : A Review, English Nature 78 See www.foresteducation.org.uk division of the Countryside Agency Science No 22, English Nature, Peterborough 79 Moll G & Kollin C (1993) A New Way to See www.countryside.gov.uk 65 Environmental Resources Management our City Forests, American Forests 99, 29 – 31 National Community Forest Partnership (1998) The Non-Timber Benefits of Trees 80 The Woodland Trust (2004) Space for www.communityforest.org.uk and Woodland, A report to the Countryside People: Targeting action for woodland National Urban Forestry Unit Commission, unpublished access, The Woodland Trust, Grantham. See www.nufu.org.uk 66 Kaplan R & Kaplan S (undated) The also http://www.the-woodlandtrust.org.uk/ Tree Council, The Experience of Nature - A Psychological news/subindex.asp?aid=822 www.treecouncil.org.uk Perspective, Cambridge University Press 81 Handley J, Pauleit S, Lindley S, Baker M, Tree Link 67 Johnson CW (1988) Planning for Avian Barber A & Jones, C (2003) Accessible www.treelink.org Wildlife in Urbanising Areas in American Desert/ Natural Greenspace Standards; a review and Trees for Cities Mountain Valley Environments, Landscape and tool-kit for their implementation, English www.treesforcities.org.uk Urban Planning 16 (3) : 245 - 252 Nature Research Report 526, English Nature, USDA Forest Service, Northeastern Research 68 Hodge JGW (1996) The Values of Trees : A Peterborough. Station Literature Review of the Non Timber Values 82 CABE Space (2005) Does money grow on www.fs.fed.us/ne/syracuse and Costs of Trees in Britain, The Tree trees? Commission for Architecture and the Woodland Trust, The Council, unpublished Built Environment, London www.woodlandtrust.org.uk 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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