江汉平原和鄂北地区中低产田地的改造潜力

分析了江汉平原、鄂北地区的自然地理条件、社会经济条件和中低产田地的现状及其形成因素；对各类中低产土壤作了统计；划分了两区域中低产田地的产量标准。根据其主要的土壤障碍因素，因地制宜地选择了相应的改造技术措施；并运用动态分析方法．计算了其投资效益．在当前人口不断增长而又不能以扩大耕地面积来增加农产品的前提下，以改造现有的中低产田地来提高农产品产量，这是一条可行的途径。

Remake Potentiality of Middle-Low Productive Farmland in the Jianghan Plain and North Hubei

This paper approaches the physical geography conditions, the social economic conditions, the present situation of middle-low productive farmland and soil forming factors in the Jianghan Plain and North Hubei. According to the principal soil obstruct factors, a lot of remaking methods were applied in the light of local condition.The economic benefit of remaking project was counted by usillg the dynamic analysis method. All of these prove that, in the case of population increasing and farmland areas decreasing at present, remaking present middle-low productive farmland is a practicable way for increasing agricultural product.