Combating the effects of climatic change on forests by mitigation strategies

<p>Abstract</p> <p>Background</p> <p>Forests occur across diverse biomes, each of which shows a specific composition of plant communities associated with the particular climate regimes. Predicted future climate change will have impacts on the vulnerability and productivity of forests; in some regions higher temperatures will extend the growing season and thus improve forest productivity, while changed annual precipitation patterns may show disadvantageous effects in areas, where water availability is restricted. While adaptation of forests to predicted future climate scenarios has been intensively studied, less attention was paid to mitigation strategies such as the introduction of tree species well adapted to changing environmental conditions.</p> <p>Results</p> <p>We simulated the development of managed forest ecosystems in Germany for the time period between 2000 and 2100 under different forest management regimes and climate change scenarios. The management regimes reflect different rotation periods, harvesting intensities and species selection for reforestations. The climate change scenarios were taken from the IPCC's Special Report on Emission Scenarios (SRES). We used the scenarios A1B (rapid and successful economic development) and B1 (high level of environmental and social consciousness combined with a globally coherent approach to a more sustainable development). Our results indicate that the effects of different climate change scenarios on the future productivity and species composition of German forests are minor compared to the effects of forest management.</p> <p>Conclusions</p> <p>The inherent natural adaptive capacity of forest ecosystems to changing environmental conditions is limited by the long life time of trees. Planting of adapted species and forest management will reduce the impact of predicted future climate change on forests.</p

Minimum requirements for sustainable use of forests in national forest programmes. Elements and principles developed for a study of Swiss forest policy

Both the United Nations Conference on Economic Development in 1992 and the European Union have called for the creation of national forest programmes (NFPs) as a means of ensuring the sustainable development of forests. In recent years, international organizations have also discussed and defined several elements that such NFPs should incorporate. Different concepts prevail, however, and policy experts have not yet reached a uniform and coherent understanding of the concept. In this paper, we develop minimum requirements for a Swiss NFP on the basis of a discussion and comparison of different definitions of NFPs and national environmental plans. We argue that a range of process, content and objective-oriented elements should be included. Copyright © 2003 John Wiley & Sons, Ltd. and ERP Environment