Retention and Movement of Water in Soil

Abstract

A full understanding of soil-water relations is necessary for water control such as drainage and irrigation in agriculture, for the performance of field foundation works in land technology and for the management and conservation of the natural environment. Generally soil-water relations depend upon both the characteristics of retention and the movement of water in soil. Since 1971, the author has done a great deal of research on the theoretical explanation and the experimental testing of the mechanism of water retention and movement in soil. The results are as follows.