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长江黄河源区生态环境脆弱性评价初探
杨建平;丁永建;陈仁升
Assessment of Eco-environmental Vulnerability in the Source Regions of the Yangtze and Yellow Rivers
YANG Jian-ping;DING Yong-jian;CHEN Ren-sheng
中国沙漠 . 2007, (6): 1012 -1017 .