| 来源类型 | Monograph (IIASA Working Paper)
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| 规范类型 | 论文
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| Possible Changes in Natural Vegetation Patterns due to Global Warming. |
| Leemans R
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| 发表日期 | 1990
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| 出版者 | IIASA, Laxenburg, Austria: WP-90-008
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| 出版年 | 1990
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| 语种 | 英语
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| 摘要 | The distribution of global vegetation patterns is strongly related to climate patterns. Local differences in soil characteristics and water availability, which are in turn also partly determined by climate, force the global vegetation patterns to become even more pronounced and the local patterns more diverse. The predicted global climate change, due to the increased levels of greenhouse gases, will thus have large impacts on broad-scale vegetation patterns. The Holdridge life zone classification is based on biotemperature (a heat sum), annual mean precipitation and a potential evapotranspiration ratio; it was used in the current paper to create an objective global vegetation (life zone) map. The map was created by interpolation of a large data base of weather stations to a grid of land cells with a resolution of 0.5". The climate scenario for future climate under double CO2 concentrations is based on results of the U.K. Meteorological Office general circulation model. Large changes in vegetation patterns are observed between the life zone classifications of present and future climate. The polar regions decrease most in their extent, and all boundaries between the different latitudinal regions move toward their poles. Most sensitive to climatic warming are the borders between the latitudinal regions. Changes are most clearly observable at the southern and northern edges of the boreal forest region. Limitations of the Holdridge classification to study impacts of climate change are discussed and improved approaches are proposed. |
| 主题 | Biosphere Dynamics (BIO)
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| URL | http://pure.iiasa.ac.at/id/eprint/3443/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/123865
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推荐引用方式
GB/T 7714 |
Leemans R. Possible Changes in Natural Vegetation Patterns due to Global Warming.. 1990.
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文件名：
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WP-90-008.pdf
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格式：
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Adobe PDF
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