| 黄土高原典型流域地下水补给-排泄关系及其变化 |
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| 引用本文： | 朱芮芮,郑红星,刘昌明.黄土高原典型流域地下水补给-排泄关系及其变化[J].地理科学,2010(1). |
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| 作者姓名： | 朱芮芮 郑红星 刘昌明 |
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| 作者单位： | 中国科学院地理科学与资源研究所陆地水循环及地表过程院重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金项目(No.40671031和No:40601015);;国家科技支撑项目(No:2007BAC03A11)资助 |
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| 摘 要： | 基于长序列实测日径流资料,分析了无定河流域的地下水补给-排泄关系。结果表明:①流域多年平均地下水补给量为11.38～15.69mm,降水入渗补给系数为2.9%～4.4%,基流补给率约为73.6%～86.8%;②就三个分区而言,年均地下水补给模数、降水入渗系数以黄土区最大,河源区次之,风沙区最小;而基流补给率以河源区最大,黄土区次之,风沙区最小;③趋势分析表明,研究区地下水补给量总体呈显著减少趋势,并进一步导致了基流量的减少。但是基流的减少程度高于补给量。
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| 关 键 词： | 地下水补给 基流 水循环变化 无定河 |
Changes of Groundwater Recharge and Discharge in Watershed of the Loess Plateau |
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| ZHU Rui-rui,ZHENG Hong-xing,LIU Chang-ming.Changes of Groundwater Recharge and Discharge in Watershed of the Loess Plateau[J].Scientia Geographica Sinica,2010(1). |
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| Authors: | ZHU Rui-rui ZHENG Hong-xing LIU Chang-ming |
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| Institution: | 1.Key Laboratory of Water Cycle and Related Land Surface Processes;Institute of Geographic Sciences and Natural Resources Research;Chinese Academy of Sciences;Beijing 100101;2.Graduate University of the Chinese Academy of Sciences;Beijing 100049 |
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| Abstract: | The Wuding River Basin,which is one of the biggest catchments in the Loess Plateau,is dry and lack of water resources.In this paper,recharge-discharge relationship in the basin has been investigated using the daily streamflow records since the 1950s.It was estimated that the annual recharge of the basin varied from 11.38 mm to 15.69 mm.For different sub-catchments the ratio between recharge and precipitation ranged in 2.9%-4.7%,while the ratio between recharge and baseflow was 73.5%-86.8%.Baseflow is highly... |
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| Keywords: | groundwater recharge baseflow hydrologic cycle Wuding River Basin |
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