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《Bulletin of Soil and Water Conservation》 2012-01
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Water Footprint Characteristics in Evolution of Oasis and Desertification in an Arid Area——A Case Study of the Northern Slope of Tianshan Mountains,Xinjiang Wei Autonoumos

GUO Peng-cheng1,2,3,4,BAO An-ming1,3,YI Qiu-xiang1, WANG Xing-juan1,2,3,WANG Qiang1,2,3,BAI Ze-long1,2,3(1.Xinjang Institute of Ecology and Geography,Chinese Academy of Sciences, Urumqi,Xinjiang 830011,China;2.Graduate University of the Chinese Academy of Sciences, Beijing 100049,China;3.State Key Laboratory of Desert and Oasis Ecology,Urumqi,Xinjiang 830011,China;4.Hainan Environment and Geology Exploration Institute,Sanya,Hainan 572000,China)  
By taking the northern slope of Tianshan Mountains as the research object,water footprint in the area is calculated by using an improved method.Then the relationship between desertification and water footprint is established based on the analyses of the spatiotemporal variation of water footprint and the desertification patterns.Moreover,the processes and mechanisms of oasis and desertification on the northern slope of Tianshan Mountains are analyzed from the water footprint perspective.Results showed that(1) from 1960 to 2007,water footprint in the area tended to increase obviously and meanwhile,water footprint structure changed significantly;(2) the productive water footprint had obvious spatial variation for the cities and counties in the area;(3) there was a significantly negative correlation between the deserted area and water footprint on the northern slope of Tianshan Mountains;(4) the adjustments of regional production structure(especially agriculture) and the improvement of the regional people′s consumption patterns are favorable to reduce the pressures on water resources in arid areas,which have an important strategic implication for the early warning and prevention of desertification in arid areas.
【Fund】: 国家科技支撑计划“省级主体功能区技术规范与关键技术应用示范”(2008BAH31B06);; 国家973项目“干旱区绿洲化、荒漠化特征及其时空格局”(2009CB421301)
【CateGory Index】: X171
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