首页|Ecosystem vulnerability of China under B2 climate scenario in the 21st century
Ecosystem vulnerability of China under B2 climate scenario in the 21st century
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This paper applies climate change scenarios in China based on the SRES assumptions with the help of RCMs projections by PRECIS (providing regional climates for impacts studies) system introduced to China from.he Hadley Centre for Climate Prediction and Research at a high-resolution (50 kmx50 km)over China.This research focuses on B2 scenario of SRES.A biogeochemical model "Atmosphere Vegetation Integrated Model (AV1M2)" was applied to simulating ecosystem status in the 21st century.Then vulnerability of ecosystems was assessed based on a set of index of mainly net primary production (NPP) of vegetation.Results show that climate change would affect ecosystem of China severely and there would be a worse trend with the lapse of time.The regions where having vulnerable ecological background would have heavier impacts while some regions with better ecological background would also receive serious impacts.Extreme climate even would bring about worse impact on the ecosystems.Open shrub and desert steppe would be the two most affected types.When the extreme events happen,vulnerable ecosystem would extend to part of defoliate broad-leaved forest,woody grassland and evergreen conifer forest.Climate change would not always be negative.It could be of some benefit to cold region during the near-term.However,in view of mid-term to long-term negative impact on ecosystem vulnerability would be enormously.
climate changescenarioecosystemvulnerabilityChina
WU ShaoHong、DAI ErFu、HUANG Mei、SHAO XueMei、LI ShuangCheng、TAO Bo
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Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China
Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China
Environmental College, Peking University, Beijing 100871, China
NETL
NSTL
万方数据
维普
