Nicola Arndt und Matthias Pohl - Neobiota

Nicola Arndt und Matthias Pohl - Neobiota Nicola Arndt und Matthias Pohl - Neobiota

22.02.2013 Aufrufe

4 Choosing between landscape options The Vegetation Map of Europe is an invaluable tool for helping us understand what kinds of vegetation could be sustained within the climatic and edaphic parameters which define each mapping unit – both the climax communities and their various possible replacements. But deciding what should happen in any programme for sustainability of natural ecosystems or in landscape design proposals is another question. One possible approach would be to use the Map as a standard to calculate the proportions of the land surface that could be occupied by each mapping unit and its complex of vegetation types in a particular area and then use this as a basis for prioritising which plant communities should be targeted in programmes of protection or restoration. For example, Figure 5a shows the proportions of the forest mapping units of England, Wales and Scotland and Figure 5b the proportions actually occupied by these woodlands within the network of designated sites. This kind of perspective would suggest that, at a national level, the U7 alluvial flood plain forest system is especially poorly represented and ought to have some priority. In fact, although relatively little of the land surface of the UK is occupied by woodland of any kind, many of theses kinds of vegetation are less threatened than some of their replacement communities. In the Red Data Book of British Plant Communities (RODWELL & COOCH in press), the most nationally endangered of the vegetation types represented at Darwen Parkway within the F8 mapping unit is the heath and, in F32, the meadows. Overlaying such evaluations upon the range of possible future landscapes may help decide what should happen within the vegetation complexes on a particular site. Clearly, the scale across which such evaluations are calculated might also affect the result: in the county within which Darwen occurs, for example, lowland heath is especially rare and vulnerable and this adds further to its wildlife and amenity value. 20% 5% 0% 8% 1% 3% 8% 3% 8% 44% U7 F29+F31 F32+F31 F105 F104 Fagus only F77 F8 F2 F1 D50 Figure 5a: Proportions of woodland mapping units in the UK: potential proportions of the forested land surface. 376

25% 6% 0% 1% 2% 1% 4% 0% 19% 42% U7 F29+F31 F32+F31 F105 F104 Fagus only Figure 5b: Proportions of woodland mapping units in the UK: proportions within the protected area network. Who should make the decisions about which elements in vegetation complexes are actually favoured in protected or developing landscapes? Very often in the UK, it is wildlife or landscape design professionals who determine such choices, using their expert knowledge. Alongside such ecological understanding, a key feature of the Groundwork ‘Changing Places’ programme is to involve local communities in determining the design and direction of post-industrial restoration schemes. Here, the Vegetation Map of Europe may have a crucial role to play in developing simple graphics showing options for the different vegetation complexes that are possible within particular landscapes. In this way, informed choices can be offered to local residents and users of a site and interest groups can negotiate the costs and benefits to them of the various alternatives. Developing such a sense of ownership of future landscapes will be essential for their sustainability. 5 Cultural resonances within future landscapes Darwen Parkway has a past and part of its history is cultural – the interactions between the landscape and previous owners and users of the site. In the British landscape, it is often impossible to disentangle these cultural elements from the dynamic processes that have been at work within the mapping units and they contribute strongly to the local distinctiveness of places. However, there is a common tendency when speaking of cultural landscapes to assume that they are always an inheritance from former times. A more flexible definition of cultural landscapes would see them as landscapes whose character and sustainability are in some way dependent on culture and which yield cultural benefits. Incorporating such a vision into the application of the European Vegetation Map for the development of restored cultural landscapes is a further challenge for us. In the UK, we have begun to explore these possibilities through the ‘Future Landscapes’ programme of the World Wide Fund for Nature. On the edge of Wakefield in northern England, there is a complex area of suburban housing, factories and goods stores, farmland, motorways and railways, typical of many of the industrialised parts of the UK at the turn of the 21 st century. These days, only a few fragments of woodland and some hedgerows F77 F8 F2 F1 D50 377

25%<br />

6%<br />

0%<br />

1%<br />

2%<br />

1%<br />

4%<br />

0%<br />

19%<br />

42%<br />

U7<br />

F29+F31<br />

F32+F31<br />

F105<br />

F104 Fagus only<br />

Figure 5b: Proportions of woodland mapping units in the UK: proportions within the protected area network.<br />

Who should make the decisions about which elements in vegetation complexes are actually favoured<br />

in protected or developing landscapes? Very often in the UK, it is wildlife or landscape design<br />

professionals who determine such choices, using their expert knowledge. Alongside such ecological<br />

<strong>und</strong>erstanding, a key feature of the Gro<strong>und</strong>work ‘Changing Places’ programme is to involve local<br />

communities in determining the design and direction of post-industrial restoration schemes. Here, the<br />

Vegetation Map of Europe may have a crucial role to play in developing simple graphics showing<br />

options for the different vegetation complexes that are possible within particular landscapes. In this<br />

way, informed choices can be offered to local residents and users of a site and interest groups can<br />

negotiate the costs and benefits to them of the various alternatives. Developing such a sense of<br />

ownership of future landscapes will be essential for their sustainability.<br />

5 Cultural resonances within future landscapes<br />

Darwen Parkway has a past and part of its history is cultural – the interactions between the landscape<br />

and previous owners and users of the site. In the British landscape, it is often impossible to disentangle<br />

these cultural elements from the dynamic processes that have been at work within the mapping units<br />

and they contribute strongly to the local distinctiveness of places. However, there is a common<br />

tendency when speaking of cultural landscapes to assume that they are always an inheritance from<br />

former times. A more flexible definition of cultural landscapes would see them as landscapes whose<br />

character and sustainability are in some way dependent on culture and which yield cultural benefits.<br />

Incorporating such a vision into the application of the European Vegetation Map for the development<br />

of restored cultural landscapes is a further challenge for us. In the UK, we have begun to explore these<br />

possibilities through the ‘Future Landscapes’ programme of the World Wide F<strong>und</strong> for Nature. On the<br />

edge of Wakefield in northern England, there is a complex area of suburban housing, factories and<br />

goods stores, farmland, motorways and railways, typical of many of the industrialised parts of the UK<br />

at the turn of the 21 st century. These days, only a few fragments of woodland and some hedgerows<br />

F77<br />

F8<br />

F2<br />

F1<br />

D50<br />

377

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