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江苏省北部滨海垦区(以下简称垦区)有耕地一千万亩以上,省内多数国营农场都建在这里。垦区内大、中、小沟已基本形成,从发展农业生产角度来评价这些工程,可以说已基本消除了洪、涝灾害。但是,渍害仍普遍存在.如何根据垦区的特点,对渍害成因加以分析,有针对性地加强水利管理工作以防治渍害,江苏省农垦系统取得一些成效,今分析如下。一、渍害成因(一)地形、地貌因素垦区地势低洼、平坦.以废黄河口基面为准,地面高程+2～+4米,并有高差1米左右的小地形.给治水改土和防治渍
Binhai Reclamation Area in northern Jiangsu Province (hereinafter referred to as reclamation area) has more than 10 million mu of cultivated land, and most state-owned farms in the province are built here. Reclamation area large, medium and small ditch has been basically formed, from the perspective of the development of agricultural production to evaluate these projects can be said that floods and floods have been basically eliminated. However, the stain damage is still widespread.According to the characteristics of reclamation area, the causes of the stains were analyzed, and the water conservancy management was intensified to prevent and treat the stains. Some achievements have been made in the system of land reclamation in Jiangsu Province. First, the causes of soil erosion (A) Topography and landform factors Reclamation low-lying, flat.With the waste Yellow River estuary base, the ground elevation of +2 to +4 meters, and a height of about 1 meter small topography. Soil and stains prevention