摘要
为科学评价湖南省农业用水效率,以湖南省双牌灌区为研究区域,以《全国农田灌溉水有效利用系数测算分析技术指导细则》为依据,通过首尾测算法对灌区进行实测,并计算出双牌灌区农田灌溉水有效利用系数。实测结果表明:双牌灌区主要作物为水稻。早稻、中稻和晚稻,其净灌溉用水量为1644.75,3742.65,4279.65 m^(3)/hm^(2);2022年双牌灌区实测农田灌溉水有效利用系数为0.5416。实测过程合规,结果合理,可为灌区规划和建设管理提供理论依据。
In order to scientifically evaluate the efficiency of agricultural water use in Hunan Province,this study took the Shuangpai Irrigation District in Hunan Province as the study area and calculated the effective use coefficient of agricultural irrigation water in the Shuangpai Irrigation District by using the first and last measurement method based on the Technical Guidance Rules for the Measurement and Analysis of the Effective Use Coefficient of A gricultural Irrigation Water in China.The analysis of the actual measurement results shows that:the main crop in Shuangpai Irrigation is rice.The net irrigation water consumption of early rice,middle rice and late rice is 1644.75,3742.65 and 4279.65 m^(3)/hm^(2);the effective utilization coefficient of farmland irrigation water in Shuangpai Irrigation District in 2022 is 0.5416.The measurement process is compliant and the results are reasonable,which can provide a theoretical basis for the planning and construction management of the irrigation district.
作者
刘思妍
唐梓豪
LIU Siyan;TANG Zihao(Hunan Institute of Water Resources and Hydropower Research,Changsha 410007,China)
出处
《水科学与工程技术》
2023年第5期22-24,共3页
Water Sciences and Engineering Technology
关键词
双牌灌区
农田灌溉水有效利用系数
首尾测算法
Shuangpai irrigation
effective utilization coefficient of irrigation water
method of initial and ending calculation
