Influence of Irrigation Water-Saving on Groundwater Table in the Downstream Irrigation Districts of Yellow River

摘要

Selecting the People's Victory Canal Irrigation District as a typical example, firstly, underground water kinetic situation was analyzed considering the different irrigation water saving measures. Then, kinetic simulation model was set up for the typical irrigation district. Based on the simulation model, influence of different irrigation water saving methods on underground water and eco-environment were studied. It is proved by the study findings that irrigation water saving measures play important role in overall enhancement of irrigation water use efficiency, decreasing groundwater table and alleviation of irrigation water shortage in the irrigation district. But, if irrigation water saving technology cannot be used rationally, it would result in reverse influence on crop growth and agricultural eco-environment. It is believed that the study results would play certain active values in irrigation water saving structures rehabilitation and eco-environment protection in the irrigation districts.