华北平原现状农田灌溉水利用率为43 1 % ,节水潜力较大。论文通过分区诊断与适应性农业节水技术评价计算 ,提出了2010年和2030年水平年分区适宜性农业节水技术发展的综合排序 ,并以现状为基点 ,计算与分析了两个水平年分区不同农田灌溉技术的发展规模和相应的节水量

Water use efficiency for farmland irrigation in North China Plain is presently only 43.1%,therefore,there exits high water saving potentiality.Through regional diagnosis and technical assessment of the suitability of water saving agriculture,the paper presents an integrated regional development order of suitable water saving technology for the years of 2010 and 2030 respectively.On the basis of the status,different agricultural irrigation technologies concerning development scale and corresponding water saving amount for these two years are calculated and analyzed.