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1 概述赵口引黄灌区是豫东大型灌区之一,原设计灌溉面积15.3万hm~2,范围包括郑州市中牟县、开封市通许县、尉氏县、开封县及开封市郊区。自1991年灌区一期工程竣工通水以来,引水工程为促进当地农业发展发挥了重要作用,但由于后续配套建设缓慢,实际灌溉面积太小,全灌区年均实际用水量1.5亿m~3与现有工程年引水6亿
1 Introduction Zhaokou Yellow River Irrigation Area is one of the major irrigation areas in eastern Henan. The original designed irrigation area was 153,000 hm ~ 2, covering Zhongmu County of Zhengzhou City, Tongxu County of Kaifeng City, Weishi County, Kaifeng County and the outskirts of Kaifeng City. Since the completion of the first irrigation project in 1991, the diversion project has played an important role in promoting the development of local agriculture. However, due to the slow construction of follow-up facilities and the actual irrigated area, the actual average annual water consumption of irrigated area is 150 million m 3 Existing projects year water 600000000