WANG Ke-zhuang,ZHANG Fu,YU Quan-gang,et al.Benefits of Sediment Reduction of Soil and Water Conservation Measures in Chenggou Dam System Watershed[J].Research of Soil and Water Conservation,2013,20(05):13-17.
称钩河坝系流域水保措施减沙效益分析
- Title:
- Benefits of Sediment Reduction of Soil and Water Conservation Measures in Chenggou Dam System Watershed
- Keywords:
- soil and water conservation; monitor; erosion sediment; water and sediment reduction; dam system watershed
- 分类号:
- S157.2
- 摘要:
- 以称钩河坝系流域降水、径流、泥沙和水土保持措施的5 a监测统计数据为依据，Quick Bird卫星影像为主要数据源，在ArcGIS 9.3及Region Manager 5.5软件支持下，研究该坝系流域降雨变化和水保措施对径流和产沙量变化的影响，分析坝系水土保持措施拦沙效益。结果表明：2007—2011年间，水土保持措施建设是该流域径流和侵蚀产沙减少的主要原因，其中坡面治理措施面积增加133.04 hm2，坝系流域总控制面积达到8 843.58 hm2，占流域总面积的54.80%。坝控范围内年平均侵蚀模数为18.80 t/km2，侵蚀模数减少5 581.20 t/km2。
- Abstract:
- On the basis of observed data of 5 years of precipitation, runoff, slit and soil and water conservation measures as well as research in Chenggou Dam system watershed, QuickBird remote sensing images as the major information source, ArcGIS 9.3 and RegionManager 5.5, precipitation variation and soil and water conservation measures on runoff and sediment yield in the watershed were studied, the benefits of water and sediment interception under the conditions of different soil and water conservation measures were analyzed. Some results were gained as followings: from 2007 to 2011, soil and water conservation construction measures is the main reason of runoff and sediment reduction, the area of countermeasures increased 133.04 hm2, the control dam system watershed area reached to 8 843.58 hm2, accounting for 54.80% of the total basin. Annual average erosion modulus is 18.80 t/km2 in Chenggou Dam system watershed, erosion modulus reduced by 5 581.20 t/km2.
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备注/Memo
收稿日期:2013-02-26;改回日期:2013-03-26。
作者简介:王可壮(1986-),男,甘肃白银人,硕士研究生,主要从事水土保持研究。E-mail:wangkezhuang1017@126.com
通讯作者:张富(1961-),男,甘肃定西人,博士,研究员,主要从事小流域水土保持防治措施对位配置研究。E-mail:fuzhang001@163.com