Sdudy on Soil Water Space Characteristics Under Different Irrigation Quota

Under different irrigation conditions fixed spatial variation of soil moisture characteristics,through the Time Domain Reflectometry,fixed under the water for different soil moisture changes in the pilot study were analyzed under different irrigation fixed soil moisture changes with depth curves.Different because of irrigation,soil moisture curve from the 3 type to 7 to 2 type curve,reveals the regularity of irrigation on soil moisture at different depths of the gradient curve of the impact.At the same time to study soil moisture effects of migration time and the vertical distribution of the characteristics of the law through a summary of the chart will be 0 ~ 180cm soil layer according to the laws of water movement into,the vertical changes in soil moisture can be divided into 4 layers: active layer(0~30 cm),storage layer(30~60 cm),slowly decreasing layer(60~100 cm),are stable layer(100~180 cm).Kriging use of the experimental plot in the NS direction to the analysis of spatial interpolation.Polynomial fitting using peak fitting with the fitting of these two equations to explore the vertical distribution of soil moisture on the application.