我省现有0.6万公顷以上的大中型灌区250处,设计和有效灌溉面积分别为153.3万公顷和120万公顷,其中0.6万公顷以上的大灌区有61处,设计和有效灌溉面积分别为97.5万公顷和75.23万公顷。经过三十多年的建设,它们绝大多数已成为我省主要商品粮食基地,粮食产量占全省总产的比例很 There are 250 large and medium-sized irrigation areas with over 6,000 hectares in our province. The designed and effective irrigated areas are 1,533,000 hectares and 1,200,000 hectares, respectively. Among them, there are 61 large-scale irrigation areas with more than 6,000 hectares, and the designed and effective irrigated areas are 97.5 Ten thousand hectares and 752,300 hectares. After more than 30 years of construction, most of them have become the major commercial grain bases in our province and the proportion of grain output in the province’s total output is very high