2006: Threshold of influence of water resources in the Heihe River valley,northwestern Gansu, China on the ecological environment variation of the lower reaches. Geological Bulletin of China, 25(1): 244-250.
    Citation: 2006: Threshold of influence of water resources in the Heihe River valley,northwestern Gansu, China on the ecological environment variation of the lower reaches. Geological Bulletin of China, 25(1): 244-250.

    Threshold of influence of water resources in the Heihe River valley,northwestern Gansu, China on the ecological environment variation of the lower reaches

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