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河龙区间坝库参数与减沙效益关系研究
Authors
上官周平
冉大川
刘斌
白志刚
Publication date
1 January 2007
Publisher
Abstract
对黄河中游河龙区间晋西北片、陕北片坝库控制面积占比、坝库单位面积库容等参数与水利水土保持措施减沙效益关系进行了研究,结果表明:(1)晋西北片若没有坝库工程,仅靠水土保持坡面治理措施只能取得14%的减沙效益;每增加100 km2的坝库控制面积,即可提高2%的减沙效益;每增加400万m3的库容,即可提高1%的减沙效益;坝库单位面积库容每提高1万m3/km2,减沙效益即可提高约10%。(2)陕北片减沙效益主要由坝库工程产生。减沙效益提高10%,坝库单位面积库容需要提高5万m3/km2。要使流域水土保持综合治理减沙效益达到20%以上,坝库单位面积库容应在6万m3/km2以上。(3)在黄河中游多沙粗沙区,要实现40%左右的减沙效益,坝库单位面积库容应达到16万m3/km2以上
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018