Irrigation Water Use Efficiency Testing Calculation And Analysis In Typical Irrigation Of Eastern Inner Mongolia

Agricultural irrigation is the basic condition of the development of agricultural production and irreplaceable, is an important support for our country’s food security. irrigation water use efficiency for irrigation and agricultural development is important. Paper chooses four typical irrigation eastern Inner Mongolia Aohanqi Shanwanzi irrigation, Nanjing County pasture irrigation, irrigation and Xilinhot Zhalantun irrigation, etc., as the research object, the system launched a canal (channel) and field testing and test, test method using channels, field measurement method, inclusive analysis, water balance method and other methods, the calculated use of canal water and irrigation water use coefficient coefficients of typical irrigation, and irrigation water use efficiency were analyzed and discussed.The results show:(1). Shanwanzi irrigation area,dian zi irrigation zha Ian tun irrigation and xilinhaote irrigation in the eastern part of Inner Mongolia, Irrigation water efficiency is 0.475,0.445,0.816,0.850 (2).The level of water utilization coefficient of only field and field engineering support and management level, but also to a certain relationship with the plots area. With the increase of the area of plots, field water use coefficient showed a downward trend.(3).Groundwater Irrigation District, the irrigation water use coefficient field measurement method and the water balance method based on the close.