Study on the Change Ruleof Soil Water in Land of Different Use Types in Taihang Mountain Area

Baoding Soil and Water Conservation Experimental Station, Baoding, Hebe 074200, China

^* Corresponding Author: Guangying Zhang; email: 587378168@qq.com;

Abstract

This paper first studies the vertical structure and soil physical properties of Songlin Plot and Huangshan Plot in Chongling Small Watershed. Then, based on a series of field experiments, this paper obtains the basic parameters and infiltration characteristics of soil water movement in two runoff Plots with different land use types. After that, this paper analyzes the seasonal variation, vertical spatial change and the response to precipitation of land with different use types based on the data monitored in the runoff Plots under natural rainfall conditions. The result shows that the changes of soil water at different depths of Songlin Plot and Huangshan Plot are basically the same and that the soil water supply is completely controlled by precipitation. The water storage capacity of Songlin Plot is stronger, while the soil moisture variation of Huangpo Plot is higher, which indicates that Songlin Plot is more stable in terms of soil moisture content and stronger in self-adjustment.