Analysis and Calculation for Effect of Egineering Measures on Sediment and Runoff in Weihe Watershed

Wang Hong; Yang Guoli; Wang Ruifang

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Analysis and Calculation for Effect of Egineering Measures on Sediment and Runoff in Weihe Watershed

- Analysis and Calculation for Effect of Egineering Measures on Sediment and Runoff in Weihe Watershed
- Bulletin of Soiland Water Conservation Vol. 13, Issue 5, Pages: 48-52(1994)
- 作者机构：
  
  黄委会天水水土保持科学试验站,甘肃,天水市,741000
- 作者简介：
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- Published：1994
- 稿件说明：
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Wang Hong, Yang Guoli, Wang Ruifang. Analysis and Calculation for Effect of Egineering Measures on Sediment and Runoff in Weihe Watershed[J]. Bulletin of Soiland Water Conservation, 1994, 13(5): 48-52.
DOI：

Wang Hong, Yang Guoli, Wang Ruifang. Analysis and Calculation for Effect of Egineering Measures on Sediment and Runoff in Weihe Watershed[J]. Bulletin of Soiland Water Conservation, 1994, 13(5): 48-52. DOI：

摘要

渭河流域水利水保措施对泥沙的影响作用，上中游地区主要以坡面水保措施为主，下游则主要是库坝、灌溉工程等水利措施，对径流的影响作用主要是农业灌溉引水。对实例的流域水文泥沙资料统计分析结果表明：该流域70年代所减水量中，降雨和流域治理的作用分别占22.6%和77.4%

所减沙量中，降雨和流域治理的作用分别占47.0%和53.o%;80年代所减水量中，降雨和流域治理的作用分别占21.3%和78.7%

所减沙量中，降雨和流域治理的作用分别占13.4%和86.6%。

Abstract

Water and soil conservation measures of slope influence mainly sediment in the region of the middle reaches andthe upper reaches of Weihe watershed

but the measures of water conservancy such as reservoirs

dams and irrigation projeets and so on

have an effect on sediment in the downreaches area

Agricultural irrigation affects primarilyrunoff.hydrology and sediment data of the watershed have been analysed statisticaly

the result shows:in 1970’sthe runoff amount which has been decreased by rainfall and watershed control is 22.6%and 77.4%respectively inthe watershed.The seditment amount which has been decreased bv rainfall and watershed control is 47.0%and53.0%respectively.But in 1980’9

the latter are respectively 21.3%and 78.7%

the latter are respectively13.4%and 86.6%.

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