The impacts of permafrost change on NPP and implications: A case of the source regions of Yangtze and Yellow Rivers |
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| Authors: | Yiping Fang Dahe Qin Yongjian Ding Jianping Yang Keyan Xu |
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| Institution: | FANG Yiping 1,QIN Dahe 2,DING Yongjian 2,YANG Jianping 2,XU Keyan 1,3 1 Institute of Mountain Hazards & Environment,Chinese Academy of Sciences,Chengdu 610041,China 2 Cold and Arid Regions Environmental and Engineering Research Institute,Lanzhou 730000,China 3 Graduate School of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | This paper studies the relationship between net primary productivity (NPP) and annual average air temperature (GT) at 0cm above ground in permafrost regions by using revised Chikugo NPP model,cubic spline interpolating functions,and non-linear regression methods.The source regions of the Yangtze and Yellow Rivers were selected as the research areas.Results illustrate that:(1) There is significant non-linear relationship between NPP and GT in various typical years;(2) The maximum value of NPP is 6.17,5.87,7.... |
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| Keywords: | The source regions of Yangtze and Yellow Rivers Permafrost Ground temperature (GT) Net primary productivity (NPP) Policy adaptation |
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