| HYPROP系统与快速离心法联合测定土壤水分特征曲线 |
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| 引用本文： | 彭紫赟,黄爽,杨金忠,王晓蕾.HYPROP系统与快速离心法联合测定土壤水分特征曲线[J].灌溉排水学报,2012,31(5):7-11. |
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| 作者姓名： | 彭紫赟 黄爽 杨金忠 王晓蕾 |
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| 作者单位： | 武汉大学水利水电学院／水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 基金项目： | 国家自然科学基金青年科学基金项目，环保公益性行业科研专项，国家973计划项目 |
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| 摘 要： | 针对3种供试土壤,利用HYPROP系统与快速离心法分别测定了土壤在低吸力（800hPa以下）和高吸力（1×103～15×103 hPa）范围内土壤吸力和含水率的关系,并联合2种方法的测定结果,采用van Genuchten（1980）-Mualem拟合得到了土壤水分特征曲线的经验参数。其中快速离心法中用对数函数拟合了转...
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| 关 键 词： | HYPROP 离心法 土壤水分特征曲线 土壤质地 |
Using HYPROP System and Centrifugal Method to Measure Soil Water Characteristic Curve |
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| Abstract: | The combination of HYPROP system and centrifugal method were used to measure soil water characteristic curve(SWCC),the parameters of SWCC were evaluated using van Genuchten-Mualem model,a logarithmic function was used to describe the relation between the speed of centrifuge and compressibility of soil,and compressibility of soil was used to amend the relation between the speed of centrifuge and the soil suction.The results showed that ①it was effective and accurate to measure soil water characteristic curve using HYPROP system and centrifugal method jointly;②soil texture and the pore size distribution were the main factors to determine the SWCC. |
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| Keywords: | HYPROP centrifugal method soil water characteristic curve soil texture |
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