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Position: Home > Articles > Correlation of soil water repellency measurements from two typical methods Transactions of the Chinese Society of Agricultural Engineering 2007,23 (7) 18-23

两种常用方法测定土壤斥水性结果的相关性研究

作  者:
吴延磊;李子忠;龚元石
单  位:
中国农业大学资源与环境学院土壤和水科学系
关键词:
土壤斥水性;滴水穿透时间法;酒精溶液入渗法
摘  要:
土壤斥水性不利于农业生产和环境的可持续性发展,引起了很多土地利用问题。为了合理地选择土壤斥水特性的测定方法,该文采用常用的滴水穿透时间法与酒精溶液入渗法两种方法测定了内蒙古锡林浩特羊草草原土壤的斥水性,并分析了两种方法的相关性。结果表明:两种方法测定的土壤斥水性具有较强的相关性,在一定范围内可以通过文中提出的多项式进行转换,并获得了中度斥水性等级以下的酒精溶液入渗法的土壤斥水性等级指标。
译  名:
Correlation of soil water repellency measurements from two typical methods
作  者:
Wu Yanlei,Li Zizhong,Gong Yuanshi(Department of Soil and Water Sciences,College of Resources and Environmental Sciences,China Agricultural University,Beijing 100094,China)
关键词:
soil water repellency;Water Drop Penetration Time;the Molarity of an Ethanol Droplet technique
摘  要:
Soil water repellency is disadvantageous to agriculture production and sustainable development of environment,and arises some problems in land use.In order to select the reasonable method,using water drop penetration time(WDPT) and the Molarity of an Ethanol Droplet technique(MED),soil water repellency in Leymus chinensis grassland in Xilinhaote region of Inner Mongolia was determined.Relationships between these two methods were analyzed.The results show that,there is a strongly correlation between WDPT and MED values,and a polynomial conversion function of MED-lg(WDPT) and MED classification associated with severity of soil water repellency below moderately hydrophobic are established.

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