| 岷江镇江关流域分布式水文及泥沙侵蚀模型研究 |
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| 引用本文： | 张会兰,李丹勋,王兴奎.岷江镇江关流域分布式水文及泥沙侵蚀模型研究[J].水动力学研究与进展(A辑),2011,26(1). |
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| 作者姓名： | 张会兰 李丹勋 王兴奎 |
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| 作者单位： | 清华大学水沙科学与水利水电工程国家重点实验室,北京,100084 |
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| 基金项目： | 国家"十一五"科技支撑计划课题 |
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| 摘 要： | 基于空间地理信息系统的流域分布式水文泥沙模型为研究流域产流产沙及在河道中的汇流、输移过程提供了,科学有效的手段.针对岷江上游镇江关流域土壤易受降雨侵蚀的问题,采用水沙耦合的流域分布式水文综合模型,对该流域1990年后典型年的径流及泥沙侵蚀输移过程进了数值模拟,并结合镇江关水文站的实测资料对模型进行了验证,计算成果令人满意.分析表明,近年来岷江上游地区的年径流和输沙量均呈现出下降的趋势,且后者下降速率更快,说明泥沙侵蚀输移与径流相比对流域环境变化的反应更为敏感,今后水土保持工作应注重坡面治理.
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| 关 键 词： | 分布式水文及泥沙侵蚀模型 水沙过程 径流 输沙量 |
Distributed hydrological and sediment erosion model with its application to Zhenjiangguan watershed in Minjiang River basin |
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| ZHANG Hui-lan,LI Dan-xun,WANG Xing-kui.Distributed hydrological and sediment erosion model with its application to Zhenjiangguan watershed in Minjiang River basin[J].Journal of Hydrodynamics,2011,26(1). |
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| Authors: | ZHANG Hui-lan LI Dan-xun WANG Xing-kui |
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| Affiliation: | ZHANG Hui-lan,LI Dan-xun,WANG Xing-kui(State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Distributed hydrological model based on spatial geographic information system provides an effective way of simulating flow/sediment yield on the slope and runoff/suspended-load transport in a channel.The integrated model,coupled with a sediment simulating module,was established and applied to Zhenjiangguan watershed in the upper Minjiang River basin, focusing on the erodible soil there.Measured data of runoff hydrograph and soil erosion from five typical years were used to calibrate and verify the model.Ver... |
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| Keywords: | distributed hydrological and sediment erosion model runoff and sediment delivery process runoff sediment discharge |
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