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Position: Home > Articles > Effect of Different Contamination Domestic Waste Water on Soil Water Repellency Water Saving Irrigation 2009 (10) 13-16+19

不同污染程度的水对土壤斥水性的影响

作  者：
陈俊英;张智韬;Leionid Gillerman;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;污水灌溉;主成分分析;多元回归;水质指标
摘  要：
污水在农业灌溉中的回用是一种有效的节水途径,但长期应用会导致土壤斥水性的提高。本研究以以色列西南部Berry的原状土壤为例,研究了8种不同污染程度的灌溉用水对土壤斥水性的影响,并用统计分析方法从多个水质参数中找出主要的影响因素。结果表明,土壤斥水性与综合水质指标F值具有很高的相关性,相关系数为0.957,呈极显著正相关;多元回归分析发现,水质中有机质含量指标化学需氧量(COD)是影响土壤斥水性的最主要因素,其次是浑浊度(Turbidity),它们与土壤斥水性建立的多元回归方程的相关系数达0.997。仅用化学需氧量(COD)与土壤斥水性建立关系,相关系数为0.877。这为进一步研究土壤斥水性和节水灌溉提供理论依据。
译  名：
Effect of Different Contamination Domestic Waste Water on Soil Water Repellency
作  者：
CHEN Jun-ying1,2,ZHANG Zhi-tao1,2,Leionid Gillerman2,Gideon Oron2,WANG Zhi-nong1((1.College of Water Resources and Architectural Engineering,Northwest Agriculture & Forestry University,Yangling 712100,Shaanxi Province,China;2.J.Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev,Sede Boker,84990,Israel)
关键词：
soil water repellency;wastewater irrigation;principal component analysis;multiple regression analysis;water quality index
摘  要：
Wastewater reuse in agricultural irrigation is an alternative approach for water saving.However,it causes the increase of soil water repellency.The present study investigated the effects of eight different types of water with different contaminated levels on soil water repellency using a loess soil collected from the Kibbutz Berry,Israel.The main affected parameters of the water quality were released by using principal component analysis.The results showed a good relationship(R2=0.915) between soil water repellency and the integrated water quality value(F).The multiple regression analysis exhibited that organic matter expressed as Chemical Oxygen Demand(COD) is the main factor affecting the soil water repellency,followed by Turbidity.The correlation coefficient is 0.997 between COD,Turbidity and soil water repellency,while 0.887 for COD and soil water repellency.This paper can provide the theory basis of further study about soil water repellency and water saving.

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