| 穆兴民,李靖,王飞,王炜.基于水土保持的流域降水-径流统计模型及其应用[J].水利学报,2004,35(5):0122-0128 |
| 基于水土保持的流域降水-径流统计模型及其应用 |
| Rainfall-runoff statistical hydrological model based on soil and water conservation practices |
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| DOI： |
| 中文关键词: 水文模型 统计模型 共线性 标度值 水土保持措施 径流 |
| 英文关键词: hydrological model statistical model co-linearity indicator soil and water conservation runoff |
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| 中文摘要: |
| 本文在变量共线性分析基础上，提出了流域降水量标度和水土保持标度及其计算方法，建立了流域降水-水土保持-径流统计模型，该模型不仅能分离水土保持措施对河川径流量影响程度，而且还可分析降水及水土保持对流域径流量变化的影响。研究表明，在佳芦河和秃尾河流域，水土保持使流域径流量平均减少10%～22%。因降水量减少及水土保持措施面积增大，20世纪70～90年代比60年代径流量明显减少，佳芦河降水变化及水土保持措施影响分别为25%和75%，而秃尾河分别为35%和65%。 |
| 英文摘要: |
| Based on the co-linearity analysis of runoff and precipitaion among different hydrological stations and various kinds of water and soil conservation measures, a statistical hydrological model of precipitation-soil and water conservation-runoff for the river basin is established by applying multiple regression method to analyze indicators and runoff data. The model can not only separate the effect of soil and water conservation measures on river runoff but also analyze the effect of precipitation and soil and water conservation measures on variation of river basin runoff amount. A case study is given in the present paper. |
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