灌溉用水有效利用系数测算与分析  

Estimation and analysis of effective utilization coefficient of irrigated water

作　　者：韩振中[1] 裴源生[2] 李远华[3] 郭慧滨[1] 

机构地区：[1]中国灌溉排水发展中心,北京100054 [2]中国水利水电科学研究院,北京100044 [3]水利部农村水利司,北京100053

出　　处：《中国水利》2009年第3期11-14,共4页China Water Resources

基　　金：水利部前期工作经费资助;水利部公益性行业科研专项经费项目(200701002)资助

摘　　要：全国灌溉用水有效利用系数测算与分析采用点与面相结合、调查统计与观测分析相结合、微观研究与宏观分析评价相结合的方法。样点灌区采用首尾测算分析方法。在各省(自治区、直辖市)代表不同规模与类型(大、中、小型灌区和纯井灌区)的典型样点灌区分析的基础上,采用加权平均的方法得出不同规模与类型灌区和各省及全国灌溉用水有效利用系数平均值。样点灌区具有广泛的代表性,该成果可以作为灌溉用水效率宏观评价的依据。The methods of estimation and analysis of effective utilization coefficient of irrigated water include combination of spot and regional analysis, statistical data collection and observation, micro and macro studies. Head-end measurement method is applied in sample irrigation districts. Weighted average method is adopted for evaluating typical sample irrigation districts of varied sizes （large, medium or small and well-irrigated district） in each province （autonomous regions or municipality）, for obtaining the average value of effective utilization coefficient of irrigated water in each irrigation district, province and all over the country. The selected sample irrigation districts cover a wide range, and the result of evaluation can be the base for macroscopic evaluation of effective utilization coefficient of irrigated water.

关 键 词：首尾测算分析法 样点灌区 灌溉用水有效利用系数 

分 类 号：S274[农业科学—农业水土工程]