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进入80年代以来,我国特别是华北地区节水灌溉对于缓解水资源供需矛盾,持续稳定发展农业生产起了关键作用。其中,山东省节水灌溉的发展一直处于全国领先地位,各种形式的节水灌溉面积已达320余万公顷,占全省有效灌溉面积的70％,居全国各省之首。随着工农业生产的迅速发展,全省水资源供需矛盾愈来
Since the 1980s, water-saving irrigation in China, especially in North China, has played a key role in alleviating the contradiction between supply and demand of water resources and continuing and steady development of agricultural production. Among them, the development of water-saving irrigation in Shandong Province has been in a leading position in the country, various forms of water-saving irrigation area has reached more than 320 million hectares, accounting for 70% of the province’s effective irrigation area, ranking first in all provinces. With the rapid development of industrial and agricultural production, the contradiction between supply and demand of water resources in the province has come