中国陆地植被对气候变化的适应性分析

目的]分析我国不同区域气候变化类型对当地生态系统植被长势的长期影响。方法]利用1981—2010年中国陆地生态系统植被指数NDVI与气温及降水之间的响应关系,定量识别植被与气候的相互作用机制,结合中国气候变化区划,完成气候变化背景下的中国陆地植被覆盖度预测。结果]我国东北大小兴安岭、长白山、云贵高原等地区植被更适应当地气候暖干化趋势,西北地区大部、东南地区(长江下游除外)植被更适应当地气候暖湿化趋势,为气候变化利于植被生长区;我国内蒙古东部及北部沙漠化严重地区植被不适应当地气候暖干化趋势,为气候变化不利于植被生长区。我国其他大部分区域植被长势与气候变化无显著响应关系。结果]该研究成果可为我国不同区域生态系统的差异化管理提供参考。

Adaptability Analysis of China's Terrestrial Vegetation to Climate Change

Objective] The research aimed to quantitatively analyze the long-term effects for different types of regional climate change to the lo-cal ecosystem vegetation growth in China.Method] Using the response relationship between China's terrestrial ecosystems vegetation index NDVIand the temperature,precipitation from 1981 to 2010,the interaction mechanism between vegetation and climate was quantitatively identified.Combined with China's climate change zoning,China's terrestrial vegetation coverage forecast under the background of climate change was com-pleted.Result]The vegetation of Xing'anling Mountains,Changbai Mountain,Yunnan-guizhou Plateau regions was more adapt to the local warmand dry climatic change type,the vegetation of most northwest region,southeast region of China (except the lower reaches of Yangtze River) wasmore adapt to the local wet and warm climate change type,which were areas that climate change was favorable for vegetation growth.The vegeta-tion in the serious desertification areas of eastern and north Inner Mongolia was not adapt to the local warm and dry climatic change type,whichwere areas that climate change was not beneficial to vegetation growth.At the other areas of China,there was no significant response relationshipbetween vegetation growth and climate change.Conclusion]The research results can provide a reference for the different regional ecological sys-tems' differentiation management.