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- [1] Eco-environment range in the source regions of the Yangtze and Yellow rivers[J]. DING Yongjian,YANG Jianping,LIU Shiyin,CHEN Rensheng,WANG Genxu,SHEN Yongping,WANG Jian,XIE Changwei,ZHANG Shiqing(Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China).Journal of Geographical Sciences. 2003(02)