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Human Causes of Aeolian Desertification in Northern China
Authors:Tao Wang  Xian Xue  Yiqi Luo  Xuhui Zhou  Bao Yang  Wanqun T  Wei Wu  Lihua Zhou  Qingwei Sun  XunmingWang  Halin Zhao and Xueyong Zhao
Institution:Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Department of Botany and Microbiology, University of Oklahoma, Norman, Oklahoma 73019-0245, USA;Department of Botany and Microbiology, University of Oklahoma, Norman, Oklahoma 73019-0246, USA;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China;Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China
Abstract:Aeolian desertification has rapidly developed in the past 50 years in Northern China, covered an area of 0.386 million km2 by 2000, affected nearly 170 million population, and caused the direct and indirect economic loss of about $6.75 (U.S. dollar) billion per year. Here we present several lines of evidence to demonstrate that human activities guided by policy shifts have been a major force to drive aeolian desertification via changes in land-use patterns and intensity. It is suggested that the desertification can be curbed or even reversed by adopting prevention and control measures with ecologically sound land-use practices in China.
Keywords:aeolian desertification  climate change  drought  human activities  Northern China
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