摘要
灌溉水利用系数包括渠系水利用系数和田间水利用系数。由于灌区渠系复杂、级数多,不同地区有不同的地貌、水文及土壤条件,采用传统的动水测定法所获得的灌溉水利用系数均不能反映灌区一段时期甚至当年的实际灌溉水利用情况,需要对灌溉水利用系数传统测定方法进行修正。结合某一灌区的实际情况,提出了辽宁省灌区水利用系数的修正方法。
The utilization coefficient of irrigation water contains the utilization coefficient of canal system water and field water. The coefficient obtained by traditional hydrodynamic measurement method can not represent the actual utilization of irrigation water due to the complicated irrigation canal system, various topographical, hydrological and soil conditions. It is needed to revise the coefficient. Integrated with actual condition of an irrigation district, the paper puts forward the specific revision method of utilization coefficient of irrigation water in Liaoning Province.
出处
《东北水利水电》
2008年第4期59-61,共3页
Water Resources & Hydropower of Northeast China
关键词
灌溉水利用系数
测定方法
修正
utilization coefficient of irrigation water
measurement method
revision
