Research On Water Content Spatial Distribution Situation Of Silt Dam In Suide County Of Shaanxi Province

Soil erosion could lead to declining soil fertility, would lose a lot of fertile topsoil. Reservoir fill up; riverbed elevation, resulting in a reduced ability to navigation; the flood runs rampant; threat industry and mining transportation installation security; ecological environment worsening. China is one of the world's most serious soil erosion. The loess plateau is our country soil erosion most serious area.Silt Dam as water and soil management of soil and water conservation measures. And can effectively address the problem of the basic necessities of life question beyond the Loess Plateau region. Silt Dam moisture analysis, regarding the Silt Dam construction, the maintenance and the use all has the vital significance.The main studies of this thesis are as follows:Through Dam level simulation to the distribution of soil moisture, obtains the water content level distributed situation map, carries on the analysis to the dam different depth soil moisture content level distribution situation.Through to the water content level distribution situation Overlay analysis, obtains the water content vertical variation situation map, carries on the analysis to between the dam neighboring two depth water content change.Through line 143 of the dam axis vector to point splint interpolation and Kriging, obtains the axle wire lengthwise section water content to distribute the DEM chart. Carries on the superimposition 11 DEM charts to take the average value, obtains the dam water content overall distribution map. In this article, we analysis the distribution to the water of the dam.Simulating the spatial distribution of soil moisture on the dam with GIS, we can be rapidly, accurately access to the soil moisture information of all the sites on the dam. Meanwhile we can get collectivity information the soil moisture. Provide the important data for the silt dam construction, the maintenance as well as the father and the science use of the dam. And has the vital significance to the silt arrester management as well as the dam place use.Through the analysis of soil moisture content to the sanjiaoping dam soil in the drainage area of jiuyuan ditch in Shaanxi Province Suide County, we obtains the research technique of the water content spatial distribution situation. Not only this method may use in analyzing the spatial distribution situation of the soil moisture content, but also it may be used in analyzing the spatial distribution situation of the soil ingredient. It regarding the father of the dam silt and the science use the dam silt all is extremely important.