巢湖市农业灌溉水利用系数测算分析

摘要

通过计算灌溉水有效利用系数,合理评价灌区工程节水效果.选取巢湖市13处样点灌区,采用首位方法测算样点灌区灌溉用水有效利用系数,从而推算巢湖市农田灌溉用水有效利用系数为0.550 0.根据结果分析,针对以中小型灌区为主的巢湖市,应该寻求有效的农业节水方式,提高农田灌溉用水效率.%Through calculating the effective utilization coefficients of irrigation water,the water saving effect of the irrigation works could be evaluated. Based on 13 selected sample irrigation areas in Chaohu City,the effective utilization coefficients of irrigation water of the selected irrigation areas were estimated through the head-end measurement method,and then the average effective utilization coefficient of irrigation water of Chaohu City was 0.550 0.As the Chaohu City was dominated by the small and the medium-sized irrigation district,it should seek effective agricultural water-saving measures,develop the water-saving agriculture,improve the effective utilization coefficient of irrigation water.