Correlation of soil water repellency measurements from two typical methods

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.