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| 大理河流域水土保持措施减沙效益与影响因素关系分析 | |
| 引用本文： | 冉大川,李占斌,张志萍,李鹏,罗全华.大理河流域水土保持措施减沙效益与影响因素关系分析[J].中国水土保持科学,2010,8(4):1-6. |
| 作者姓名： | 冉大川 李占斌 张志萍 李鹏 罗全华 |
| 作者单位： | 1. 黄河水利委员会黄河水利科学研究院,450003,郑州;西安理工大学,710048,西安;中国科学院,水利部,水土保持研究所,黄土高原土壤侵蚀与旱地农业国家重点实验室,712100,陕西杨凌 2. 西安理工大学,710048,西安 3. 黄河水利委员会西峰水土保持科学试验站,745000,甘肃庆阳 |
| 基金项目： | 黄河水利委员会"十五"重大治黄科技项目，"十一五"国家科技支撑计划重点项目专题项目 |
| 摘 要： | 利用大理河流域1960—2002年的系列水文资料和水土保持成因分析法计算结果,分析大理河流域减沙效益与措施保存面积、配置比例和汛期降雨量等影响因素的关系,以及大理河流域淤地坝措施减沙量与坡面措施减沙量的关系。结果表明:现状水土流失治理条件下,大理河流域仅靠坡面治理措施取得的减沙效益只有9%,取得最大减沙效益的水土保持措施梯田、林地、草地、坝地最优配置比例为18.6∶73.2∶4.6∶3.6,保持流域水土保持措施较高减沙效益的坝地配置比例为4%;大理河流域水土保持措施减沙量与汛期降雨量关系最为密切,二者呈正相关关系;流域水土保持措施减沙能力表现最充分的汛期降雨量值区间约为300～500mm;大理河流域治理期有21年坡面措施减沙量小于600万t/a,淤地坝措施减沙量均在3000万t/a以内变化。20世纪90年代以来,流域坡面措施减沙量与淤地坝措施减沙量关系比较密切,淤地坝措施减沙量的增幅小于坡面措施减沙量的增幅。 |
| 关 键 词： | 水土保持措施 减沙效益 影响因素 大理河 |
Analysis of the sediment reduction benefits of soil and water conservation measures and its influencing factors in Dali River Basin |
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| Ran Dachuan,Li Zhanbin,Zhang Zhiping,Li Peng,Luo Quanhua.Analysis of the sediment reduction benefits of soil and water conservation measures and its influencing factors in Dali River Basin[J].Science of Soil and Water Conservation,2010,8(4):1-6. | |
| Authors: | Ran Dachuan Li Zhanbin Zhang Zhiping Li Peng Luo Quanhua |
| Institution: | Ran Dachuan1,2,3,Li Zhanbin2,Zhang Zhiping4,Li Peng2,Luo Quanhua4(1.Yellow River Institute of Hydraulic Research,Yellow River Conservancy Commission,450003,Zhengzhou,2.Xi'an University of Technology,710048,Xi'an,3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,712100,Yangling,Shaanxi,4.Xifeng Soil and Water Conservation Experimental Station,7... |
| Abstract: | The relationship between sediment reduction benefit and preserved area and allocation rate of soil and water conservation measures and flood season rainfall as well as other influencing factors in Dali River Basin was studied.The relationship between sediment reduction of warping dams and sediment reduction of slope measures was analyzed also.The results showed that under the current condition of watershed management the sediment reduction benefit only reaches 9% by controlling measures on slope.The best ma... |
| Keywords: | soil and water conservation measure sediment reduction benefit influencing factor Dali River Basin |
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