天津市纯井灌区灌溉水有效利用系数测算分析技术研究  

Study on Calculating and Analyzing Technology of Effective Utilization Coefficient of Irrigation Water in Pure Well Irrigation Area of Tianjin

作　　者：张艳芬[1] 王剑波[1] 陈韬[1] ZHANG Yanfen;WANG Jianbo;CHEN Tao(Tianjin Hydraulic Research Institute,Tianjin 300061,China)

机构地区：[1]天津市水利科学研究院,天津300061

出　　处：《水资源开发与管理》2022年第10期22-29,共8页Water Resources Development and Management

摘　　要：为研究天津市2021年纯井灌区灌溉用水效率,科学评价纯井灌区节水发展成效,选择14个纯井样点灌区、56个典型地块,采用TDR土壤水分监测仪实测法测算得出2021年天津市纯井灌区灌溉水有效利用系数,并对成果进行了对比分析。结果表明,与其他类型灌区相比,纯井灌区灌溉水利用系数最高,对天津市整体系数值的提升起到了正向影响作用。“十四五”期间要实现全市系数值稳定或提升,由于纯井灌区系数提升空间有限,需保持现有节水管理水平,维持纯井灌区系数值持续稳定,并加大对小型、中型灌区的节水工程建设和管理。In order to study the irrigation water use efficiency of pure well irrigation area in Tianjin in 2021and evaluate scientifically the development effect of water-saving in pure well irrigation areas,14 pure well irrigation areas and 56 typical plots are selected in this paper,and the effective utilization coefficient of irrigation water in pure well irrigation areas in Tianjin in 2021 is calculated by the measured method of TDR soil moisture monitor. After comparison and analysis of the results,it shows that compared with other types of irrigation areas,the utilization coefficient of irrigation water in pure well irrigation areas is the highest,which has a positive effect on the improvement of the overall coefficient value in Tianjin.During the 14th Five-Year Plan period,the coefficient value of the whole city should be stable or improve. Influenced by the limited space for coefficient improvement in pure well irrigation areas,it is scientific and efficient to maintain the existing water-saving management level,maintain the continuous stability of the coefficient value in pure well irrigation areas,and increase the construction and management of water-saving projects in small and medium-sized irrigation areas.

关 键 词：天津市 纯井灌区 灌溉水有效利用系数 对比分析 

分 类 号：S274[农业科学—农业水土工程]