| 优化算法确定土壤水分特征曲线的分析 |
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| 引用本文： | 唐亚莉,董文明,赵晶晶,虎胆·吐马尔白.优化算法确定土壤水分特征曲线的分析[J].新疆大学学报(理工版),2006,23(2):240-243. |
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| 作者姓名： | 唐亚莉 董文明 赵晶晶 虎胆·吐马尔白 |
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| 作者单位： | 新疆农业大学水利与土木工程学院 新疆乌鲁木齐830052 |
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| 基金项目： | 自治区教育厅创新群体基金(XJEDU2005G02)项目资助，新疆水利水电工程重点学科基金资助 |
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| 摘 要： | 通过探讨直接法测定土壤水分曲线的诸多不便,引入Van-Genuchten(1980)模型,对其进行对数简化,以沙性土壤为样本,通过对Van-Genuchten模型中的参数n、β进行线性回归分析,确定出了土壤性质的关键性参数,并把计算与实测的土壤水分特征曲线进行了对比.结果表明,该模型的计算值与实测值吻合的非常好,说明通过优化法确定非饱和土壤水分特征曲线是可行的.
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| 关 键 词： | 土壤水分特征曲线 Van-Genuchten模型 对数简化 |
| 文章编号： | 1000-2839（2006）02-0240-04 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005年9月13日 |
The Analysis of Optimizing Algorithm for Determining Soil Moisture Characteristic Curve |
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| TANG Ya-li,DONG Wen-ming,ZHAO Jing-jing,Hudan TUMARBAY.The Analysis of Optimizing Algorithm for Determining Soil Moisture Characteristic Curve[J].Journal of Xinjiang University(Science & Engineering),2006,23(2):240-243. |
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| Authors: | TANG Ya-li DONG Wen-ming ZHAO Jing-jing Hudan TUMARBAY |
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| Affiliation: | College of Water Conservancy and Civil Engineering, Xinjiang Agriculture University, Urumuqi, Xinjiang 830052, China |
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| Abstract: | In this paper, through discussing the inconvenience of determining soil moisture characteristic curve with direct-methods,the Van-Genuchten(1980) Model is put forward and simplified on logarithm. This paper also make a kind of sandy soil as a sample and determines the key parameters of soil characteristic through using the linear regressive algorithm to analyze the parameters in the Van-Genuchten Model. The result shows that the values of computation agree with the experimental data fairly well through comparing calculating soil moisture characteristic curve with the experimental one. |
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| Keywords: | soil moisture characteristic curve Van-Genuchten model simplified logarithm |
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