| 土壤非饱和导水率模型中参数的敏感性分析 |
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| 引用本文： | 李毅,邵明安,王文焰,王全九.土壤非饱和导水率模型中参数的敏感性分析[J].水科学进展,2003,14(5):593-597. |
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| 作者姓名： | 李毅 邵明安 王文焰 王全九 |
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| 作者单位： | 1.中国科学院地理科学与资源研究所, 北京, 100101; |
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| 基金项目： | 国家自然科学基金重大研究计划(90102012)，国家杰出青年科学基金资助项目(40025106)，黄土高原土壤侵蚀与旱地农业国家重点实验室基金资助项目(10501)~~ |
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| 摘 要： | 针对邵明安根据再分布过程得出的非饱和导水率模型,对其中参数的敏感性进行分析,通过实测资料计算非饱和导水率对不同参数的敏感度,对比参数对非饱和导水率的影响程度。研究表明采用线性关系表示土壤湿润剖面的平均湿度和湿润锋处湿度之间的关系时,非饱和导水率对参数的敏感性比其他参数高得多。
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| 关 键 词： | 土壤 非饱和导水率模型 敏感性分析 参数 |
| 文章编号： | 1001-6791(2003)05-593-05 |
| 收稿时间： | 2002-06-10 |
| 修稿时间： | 2002年6月10日 |
Sensitive analyses of parameters in unsaturated soil hydraulic conductivity model |
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| LI Yi,SHAO Ming-an,WANG Wen-yan,WANG Quan-jiu.Sensitive analyses of parameters in unsaturated soil hydraulic conductivity model[J].Advances in Water Science,2003,14(5):593-597. |
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| Authors: | LI Yi SHAO Ming-an WANG Wen-yan WANG Quan-jiu |
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| Institution: | 1.Institute of Geographical Science and Natural Resources Research, CAS, Beijing 100101, China;2.Institute of Soil and Water Conservation, CAS, Yangling 712100, China;3.Institute of Water Resources, Xi'an University of Technology, Xi'an 710048, China |
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| Abstract: | This paper analyses the sensitivities of the parameters in the unsaturated soil hydraulic conductivity model developed by Shao Mingan.The sensitivity degrees of unsaturated soil hydraulic conductivity to different parameters are calculated by using the laboratory measured data to compare the influence of parameters on soil unsaturated hydraulic conductivity.The results show when the linear function is adopted to express the relation of average moisture of soil profile and moisture of wetting front,the sensitivity of parameters are much higher than the other parameters in Shao's unsaturated hydraulic conductivity model. |
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| Keywords: | soil unsaturated hydraulic conductivity model sensitivity analyses parameter |
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