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开封市位于豫东平原,总面积644km~2,其中耕地面积36.38万hm~2,总人口492.65万人。其中农业人口369.14万人,农民人均耕地0.98hm~2。是一个典型的农业市。历史上由于黄河多次改道、决口,造成了这里风沙、盐碱肆虐。旱涝灾害频繁,农业基础十分薄弱。新中国成立以来,开封市水利事业取得了令人瞩目的成就。开挖疏浚惠济河、涡河、贾鲁河等防汛除涝骨干河道;开发利用黄河水资源,建立赵口、柳园口、黑岗口、三义寨等大、中型引黄灌溉补源工程;在东南部缺水地区打井配套,掀起旱地打
Kaifeng City is located in the eastern Henan Plain, with a total area of 644km ~ 2, of which 363,800 hm 2 of cultivated land area, the total population of 49266500 people. Among them, there are 3,691,400 agricultural population and 0.98hm ~ 2 per capita cultivated land for farmers. Is a typical agricultural city. Due to the Yellow River diversion several times in history, the burst caused the sand storm here and the salt and alkali raged. Droughts and floods are frequent and the agricultural foundation is very weak. Since the founding of New China, Kaifeng City water conservancy has made remarkable achievements. Excavation dredging Huiji River, the Turbot River, Jialu flood flood and other key watercourses; development and utilization of the Yellow River water resources, the establishment of Zhao mouth, Liuyuankou, Heigoukou, Sanyi Walled and other large and medium-sized project of irrigating the Yellow River; Drilling wells in the southeastern water-poor areas, set off drought hit