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解放以来,尤其是七十年代,灵璧县做了大量农田灌溉工程,兴建机电站77座,装机170台套,11428马力;流动机械1510台套,20917马力;打机井9232眼,配套机井7750眼;主要河道上的水闸15座,水库8座,地面蓄水有效库容4230万立方米,浅层地下水可开采量3.6亿立方米,从水源和工程设施计算,能达到的灌溉面积是很可观的,设计效益达90多万亩,有效灌溉面积71万亩。实际灌溉面积1970年为4万亩,1976年达48万亩,到1979年一直在40万亩左右。但粮食产量却增长缓慢。1980年以后灌溉面积下降为7.5万亩,但产量却大幅度持续上升。现就这个问题,从以下几方面进行探讨。
Since the liberation, especially in the seventies, Lingbi County has done a lot of irrigation projects, the construction of 77 mechanical and electrical stations, installed 170 sets, 11428 horsepower; flow machinery 1510 sets, 20917 horsepower; drilling machine well 9232, matching machine wells 7750 Eye; 15 sluices on major rivers, 8 reservoirs, 42.3 million cubic meters of effective storage capacity of ground water, 360 million cubic meters of shallow groundwater to be reclaimed, calculated from water sources and engineering facilities, the irrigation area can be achieved is very impressive The design benefit of more than 90 million mu of irrigated area of 710,000 mu. The actual irrigated area was 40,000 mu in 1970 and 48 million mu in 1976, reaching about 400,000 mu in 1979. However, food production has been slow to grow. After 1980, the irrigated area dropped to 75,000 mu, but the output increased substantially. Now on this issue, from the following aspects to explore.