Responses of desertification to variations in wind activity over the past five decades in arid and semiarid areas in China

查看全文 作　　者：WANG [1]XunMing;LI [2]JiJun;DONG [1]GuangRong;XIA [1]DunSheng

机构地区：[1]Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;[2]School of Resources and Environment, Lanzhou University, Lanzhou 730000, China

出　　处：《Chinese Science Bulletin》索引2008年第53卷第3期,共8页

基　　金：the National Natural Science Foundation of China(Grant No.40301006) 摘　　要：There have been significant variations in wind activity over the past five decades in arid and semiarid areas in China.High wind activity occurred from the 1960s to the 1970s,but wind activity has de-creased continuously from the 1980s to the present;as a result,the potential sand transport during the latter period was only 20%-50% of the values during the 1960s and 1970s.Phases of high wind activ-ity were highly consistent with the trends in desertification over the past five decades in arid and semiarid areas in China,but spring precipitation was also a significant factor:rapid desertification during the 1960s and 1970s was due to high wind activity,generally combining with low spring pre-cipitation;subsequent rehabilitation since the 1980s has resulted from the combined effects of low wind activity and higher spring precipitation.Therefore,although modern desertification and rehabili-tation processes are being more or less affected by human activities,both processes appear to be more strongly controlled by climate change. 关键词：中国干旱半干旱地区土壤荒漠化风向

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Responses of desertification to variations in wind activity over the past five decades in arid and semiarid areas in China

参考文献(21)

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耦合文献(1067)

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