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《Arid Land Geography》 2004-02
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Influence of Climate and Environment Change on Dust Storms in Xinjiang,China

WEI Wen-shou 1,2 ,Gao Wei-dong 2,SHI Yu-guang 1,Osamu ABE 3 (1 Institute of Desert Meteorology,China Meteorological Administration,Urumqi 830002,China;2 Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China;3 Snow and Ice Research Group,National Research Institute for Earth Science and Disaster Prevention,Japan)  
The desert environment change in the source areas of dust storms occurring in Xinjiang is discussed based on the climate change and the impacts of human activities in Xinjiang in recent 50 years. The results show that the climate in Xinjiang is changing from warming-drying type to warming-wetting type. The climate warming-wetting is quite obvious since the mid-1970s,especially the sensitivity of the regional climate change in this arid area is obviously revealed by many factors,such as the characteristics of the local climate change in south and north Xinjiang,the difference of climate change in the alpine zones and the basins,and the change of areas of the waters,and these factors also reveal the difference of the regional climate change between Xinjiang and central and eastern areas of China. Because of the climate fluctuation and the disturbance of human activities,the occurrence and development of dust storms are directly affected by the precipitation,air humidity,status of underlying surface,etc. in the arid areas. The occurring frequency and intensity of dust storms are closely related to the natural conditions,change of climate and desert environment as well as the forcing conditions (i.e.,weather systems) in the source areas of dust storms. Therefore,climate warming is one of the main causes resulting in the degeneration of the ecological environment and the frequent occurrence of natural disasters,especially the disasters of sand drift and dust storms in the arid areas since the late-1980s,which reveals that the continental arid areas are the sensitive regions to climate change.
【Fund】: 科技部重点基础研究前期专项 (2 0 0 2CCA0 460 0 ) ;; 科技部基础性研究项目 :“沙尘暴观测规范和分级标准的研究”
【CateGory Index】: P445.4
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