The experiment study on the soil infiltration characteristics of Wenyuhe irrigation district in Shanxi province

This thesis based on the Agricultural research projects of Shanxi province (No: 20100311124) “Optimization of surface irrigation parameters of irrigation technology”. In this study, the combined study methods of field experiment with theoretical analysis were adopted. Through the field infiltration tests of ten points within Wenyuhe Irrigation area, the characteristics of soil water infiltration and the various factors influencing soil water infiltration characteristics were studied systematic. The results show that the soil structure, soil moisture, soil organic matter, soil texture is the infiltration characteristics of main factors of Wenyuhe irrigation soil water. Soil water infiltration capacity generally decreases with soil water content in soil, the viscous grain (0.02 mm) decreases with the soil bulk density decreases. Regardless of how the soil physical properties of soil water infiltration capacity, it experienced by the stability, and finally the change process, and better meet certain function. Soil infiltration curve can be described within KeFu model test and shows good description. This experiment can for the future of water-saving irrigation and water resources sustainable development research to provide the necessary theoretical basis.