Largescale and strongintensity plant engineering and various water conservancy project can fully use limited water resource, reduce sediment transporting to the Yellow River. But it also can cut off or change former water circulation. Although many scholars have resarched the influence of soil and water conservation on water environment, there are still some deficiencies. The effect of individual measure, especitally forest and meadow, has been studied thoroughly, but it is lack of the investigation of the ...
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