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在过去的20年内,上海逐渐建成了以近郊24个乡(镇)为主要生产区的稳产、高产蔬菜基地,市属常年菜田最多时为20万亩。蔬菜生产离不开水,菜区的农田水利突出表现为排涝、灌溉系统的建设。排灌设施是蔬菜生产的基础条件和保障体系,抗御了潮水、雨涝、干旱、盐渍的危害,保证了蔬菜生长的灌溉,可以说,没有水利就没有蔬菜。一、农田水利建设成果回顾(一)圩区建设。菜区地面高程平均3m左右,常受潮水和雨涝侵害。在郊区水利分片治理基础上,建立了98个圩区,总控制面积12.9万亩,其中耕地面积6.7万亩,而耕地
Over the past 20 years, Shanghai has gradually built up a steady and high-yield vegetable base with 24 townships (towns) in the suburbs as its major production areas. The city has a perennial vegetable field with a maximum of 200,000 mu. Vegetable production is inseparable from the water, vegetable farmland water conservancy performance of drainage, irrigation system construction. Irrigation and drainage facilities are the basic conditions for production of vegetables and security system, against the tide, rain, drought, salt hazards, to ensure the growth of vegetables irrigation, we can say that there is no water without vegetables. First, farmland water conservancy construction achievements review (A) polder area construction. The average elevation of the vegetable area is about 3m, often infested by tide and rain and waterlogging. On the basis of suburban irrigation schemes, 98 polders have been established with a total control area of 129,000 mu, of which cultivated land area is 67,000 mu while cultivated land