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Position: Home > Articles > Response Models for Soil Water Repellency and Soil Moisture Transactions of the Chinese Society for Agricultural Machinery 2012,43 (1) 69-73+88

土壤斥水性对含水率的响应模型研究

作  者:
陈俊英;吴普特;张智韬;Gideon Oron;汪志农
单  位:
本古里安大学Blaustein沙漠研究所;西北农林科技大学水利与建筑工程学院
关键词:
土壤斥水性;土壤含水率;响应模型;回归
摘  要:
选用以色列3类不同质地的10种不同斥水性的土壤为研究对象,采用滴水穿透时间法测定土壤斥水性对含水率的响应关系,得到了不同土壤斥水持续时间随含水率变化的规律,通过Gaussian模型、Lorentzian模型和Lognormal模型对这种规律进行回归分析,最终得出了土壤斥水持续时间随含水率的变化规律符合Lorentzian模型。由此响应模型,就可以根据某种土壤部分斥水性对含水率响应的实测数据,计算出土壤斥水性的峰值含水率、峰值斥水性以及临界含水率,为不同土壤斥水性进行对比和土壤改良提供理论依据。
译  名:
Response Models for Soil Water Repellency and Soil Moisture
作  者:
Chen Junying1,2 Wu Pute1 Zhang Zhitao1 Gideon Oron3 Wang Zhinong1(1.College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling,Shaanxi 712100,China 2.Institute of Soil and Water Conservation,CAS & MWR,Yangling,Shaanxi 712100,China 3.J.Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev,Sede Boker 84990,Israel)
关键词:
Soil water repellency,Soil moisture,Response model,Regression
摘  要:
The relationships between the soil water repellency and soil moisture were studied by measuring WDPT using 10 different water repellent soils collected from Israel.A single peak curve correlation of the relationships between the WDPT and soil moisture was obtained after analysis.Three mathematic models,namely Gaussian,Lorentzian and Lognormal distributions were used for fitting the models by regression analysis,and the Lorentzian distribution was found to be the best model for the practical use.The peak soil moisture,the peak WDPT and the critical soil moisture can be computed by the model of part measured WDPT and soil moisture.It can provide the theory for amelioration of soil and compare of the different repellent soils.

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