| 渭河水沙变化及其影响因素分析 |
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| 引用本文： | 马勇,秦百顺,王宏,赵俊侠.渭河水沙变化及其影响因素分析[J].中国水土保持,2002(8):18-20. |
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| 作者姓名： | 马勇 秦百顺 王宏 赵俊侠 |
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| 作者单位： | 黄河水利委员会 天水水土保持科学试验站,甘肃 天水 741000 |
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| 摘 要： | 渭河是黄河的一条多泥沙支流 ,1970年之前每年向黄河输送泥沙 1 85亿t。渭河具有水沙异源的特点 ,泥沙主要来自南河川站以上地区 ,径流主要来自南河川站至咸阳站区间流域。 1970～ 1996年 ,流域内水利水保措施年均减水2 5 5亿m3 ,年均减沙 0 6792亿t,发挥了重要的蓄水拦沙和削洪作用。流域内人类活动有使泥沙增长的势头
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| 关 键 词： | 水土保持措施 水利工程 减水减沙效益 水沙变化 渭河 |
| 文章编号： | 1000-0941(2002)08-0018-03 |
| 修稿时间： | 2002年6月24日 |
Variations of Water and Sediment of the Weihe River and Impact Factors Analysis |
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| MA Yong,QIN Bai shun,WANG Hong.Variations of Water and Sediment of the Weihe River and Impact Factors Analysis[J].Soil and Water Conservation In China,2002(8):18-20. |
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| Authors: | MA Yong QIN Bai shun WANG Hong |
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| Abstract: | The Weihe River is a high sediment content tributary of the Yellow River. Before 1970, sediment delivery of the river to the Yellow River was 185 million tons annually. The characteristic of the river is different sources of water and sediment. The sediment mainly comes from the region above Nanhechuan Station and runoff from the region between Nanhechuan to Xianyang Station. During 1970～1996, the annual average runoff had been reduced 2.55 billion m 3 and sediment 67.92 milliontons through the measures of hydraulic works and soil and water conservation in thebasin, playing an important role million tons through the measures of hydraulu works and soil and water conservation in the basin,playing an importortant role on storing water, retaining sediment and reducing flood volumes. At present, in the basin there is a momentum of increasing sediment because of human activities. |
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| Keywords: | soil and water conservation measures hydraulic projects benefits of sediment and runoff reduction variations of water and sediment Weihe River |
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