| 利用圆盘入渗仪推求含碎石土壤饱和水力传导度(英) |
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| 引用本文： | 朱元骏,邵明安.利用圆盘入渗仪推求含碎石土壤饱和水力传导度(英)[J].农业工程学报,2006,22(11):1-5. |
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| 作者姓名： | 朱元骏 邵明安 |
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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;中国科学院研究生院,北京,100039
2. 中国科学院地理科学与资源研究所,北京,100101;中国科学院水利部水土保持研究所,杨凌,712100 |
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| 摘 要： | 在模拟土柱中，利用圆盘入渗仪对碎石对土壤饱和水力传导度的影响进行了分析。结果表明：含碎石土壤饱和水力传导度可以通过对不同负压下土壤稳定入渗速率进行非线性回归获得。含碎石土壤饱和水力传导度与去除碎石后的土壤饱和水力传导度及碎石形状指数密切相关。试验中含碎石土壤的饱和水力传导度随碎石含量的增加而呈指数降低趋势。
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| 关 键 词： | 碎石 入渗 土壤饱和水力传导度 形状指数 |
| 文章编号： | 1002-6819(2006)11-0001-05 |
| 收稿时间： | 2005-11 |
| 修稿时间： | 2006-07-20 |
Estimating saturated hydraulic conductivity of soil containing rock fragments with disc infiltrometer |
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| Zhu Yuanjun,Shao Ming'an.Estimating saturated hydraulic conductivity of soil containing rock fragments with disc infiltrometer[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(11):1-5. |
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| Authors: | Zhu Yuanjun Shao Ming'an |
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| Institution: | (1978-), male, Ph.D. Candidate at the Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, main research field is soil and water processes in micro-scale, Jia No.11 Datun Road, Chaoyang District, Beijing 100101. Email:zhuyj.04b@igsnrr.ac.cn1Introduction;Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China |
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| Abstract: | Simulation experiment was conducteds in soil columns and the effects of rock fragments on soil saturated hydraulic conductivity by disc infiltrometer were analyzed. Results indicate that saturated hydraulic conductivity of soil containing rock fragments can be calculated through nonlinearly regressing steady infiltration rates at different negative water heads. Saturated hydraulic conductivity of soil containing rock fragments is closely correlated to the hydraulic conductivity of soil without rock fragments and the shape coefficient of the rock fragments. And the hydraulic conductivity of soil containing rock fragments decreases exponentially with the increase of rock fragments in the experiment. |
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| Keywords: | rock fragments infiltration soil saturated hydraulic conductivity shape coefficient |
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