| 土壤斥水性与有机质质量分数的变化关系研究 |
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| 引用本文： | 陈俊英,吴普特,张智韬,Gideon Oron,汪志农.土壤斥水性与有机质质量分数的变化关系研究[J].灌溉排水学报,2012(3):96-98,118. |
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| 作者姓名： | 陈俊英 吴普特 张智韬 Gideon Oron 汪志农 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室;西北农林科技大学水利与建筑工程学院;中国科学院/水利部水土保持研究所;本古里安大学Blaustein沙漠研究所 |
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| 基金项目： | 武汉大学水资源与水电工程科学国家重点实验室开放基金项目(2010B070);中国博士后科学基金项目(20110491700);西北农林科技大学人才专项资金资助项目(2009) |
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| 摘 要： | 土壤有机质质量分数是影响土壤斥水性的最主要因素之一,为研究二者之间的关系,选用以色列3类不同质地斥水性土壤为对象,分别在田间和实验室测定土壤斥水性和有机质质量分数,并绘制土壤斥水性和有机质质量分数的等值线图和关系图。结果表明,对于粘性土壤和沙质土壤,土壤斥水性随有机质质量分数成幂指数关系,但对于壤土,二者之间没有非常明显的线性关系。研究结果可为分析不同土壤的斥水性影响因素和土壤改良提供理论依据。
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| 关 键 词： | 土壤斥水性 有机质质量分数 变化关系 土壤含水率 |
The Relationship between WDPT and Soil Organic Matter |
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| CHEN Jun-ying,WU Pu-te,ZHANG Zhi-tao,Gideon Oron,WANG Zhi-nong.The Relationship between WDPT and Soil Organic Matter[J].Journal of Irrigation and Drainage,2012(3):96-98,118. |
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| Authors: | CHEN Jun-ying WU Pu-te ZHANG Zhi-tao Gideon Oron WANG Zhi-nong |
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| Institution: | 1.The State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University,Wuhan 430072,China;2.College of Water Resources and Architectural Engineering,Northwest Agriculture & Forestry University,Yangling 712100,China; 3.Insititute of soil and water conservation,CAS & MWR,Yangling 712100,China; 4.J.Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev,Sede Boker,84990,Israel) |
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| Abstract: | Soil organic matter is the main factor of soul water repellency.This paper got the contour of Water Drop Penetration Time(WDPT) for three kinds of soils namely clay,loam and sandy soil,by measured WDPT in the field and soil moisture and organic matter in the lab.Meanwhile the relationship between WDPT and soil organic matter was got by measuring WDPT after drying soil samples 65 ℃ for clay and sandy soil in the lab.The results show that the relationship between WDPT and organic matter shows difference between soils.It is a power correlation for clay and sand and no linear correlation for loam.It can provide the theory for the factors of soil water repellency and soil amelioration. |
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| Keywords: | soil water repellency organic matter relationship soil moisture |
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