| 滦河流域产流特性变化趋势分析 |
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| 引用本文： | 李建柱,冯平. 滦河流域产流特性变化趋势分析[J]. 干旱区资源与环境, 2009, 0(8) |
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| 作者姓名： | 李建柱 冯平 |
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| 作者单位： | 天津大学建筑工程学院; |
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| 基金项目： | 国家自然科学基金(50879051)资助 |
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| 摘 要： | 随着滦河流域下垫面的变化,流域产流特性也相应的发生了变化。文中分析了滦河流域存在的产流模式,通过分析径流系数变化和降雨径流相关关系,发现产流模式有从超渗产流向蓄满产流过渡或先超渗后蓄满的趋势。并选取了20世纪80年代后的几场典型较大洪水过程,分别采用所建立蓄满产流模型(新安江模型)和超渗产流模型(陕北模型)对这几场洪水进行模拟分析,通过两者模拟径流量的差值估算了产流特性变化对径流量变化的影响程度。结果表明:随着滦河流域植被覆盖率的不断提高,产流特性的这种变化对产流量有一定的减少作用,会使滦河流域径流量减少26.9%左右。
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| 关 键 词： | 滦河流域 产流模式 产汇流特性 水文模型 |
Trend ananlysis of runoff generation characteristics of Luanhe River Basin |
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| LI Jianzhu,FENG Ping. Trend ananlysis of runoff generation characteristics of Luanhe River Basin[J]. Journal of Arid Land Resources and Environment, 2009, 0(8) |
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| Authors: | LI Jianzhu FENG Ping |
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| Affiliation: | School of Civil Engineering;Tianjin University;Tianjin 300072;P.R.China |
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| Abstract: | The runoff generation characteristics have changed with the change of underlying surface since 1980s.So the runoff generation mechanism was found to have changed accordingly from infiltration excess to saturation excess runoff generation through the analysis of runoff coefficient and the relation between precipitation and runoff.To estimate the effects of the change of runoff patterns on runoff generation volume,Xin'an jiang model and infiltration-excess model were applied to simulate several typical floods... |
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| Keywords: | Luanhe River Basin various components of runoff runoff generation and routing characteristic hydrological model |
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