银川平原北部,土地辽阔,地势低平,排水不畅,土壤盐渍化严重。据调查,有大片荒地240.2万亩,其中有宜农荒地97.3万亩,宜林54.8万亩,宜牧52万亩,宜渔15.2万亩;另有零星荒地60.2万亩。这些荒地是我区宝贵资源,自治区决定在银北开荒100万亩的这一重大决策,给我们提出了一项亟待研究解决的课题。为此我们于1984年 The northern part of Yinchuan plain, vast land, low level, poor drainage, serious soil salinization. According to the survey, a large area of ​​240.2 million hectares of wasteland, of which there are 1.973 million mu of suitable agricultural wasteland, 548,000 mu of Yilin, 52 mu of Yima and 152,000 mu of Yishan, and another 60.2 million mu of sporadic wasteland. These wasteland is a precious resource of our region. The autonomous region decided to make a major decision on reclaiming 100 million mu of wasteland in the northern part of the country and gave us a task that we must study and solve urgently. For this we in 1984