从三峡库区土地容量论移民外迁的必要性——以重庆市云阳县为例

三峡库区农村移民安置是三峡工程系统中的一项重要工程，它直接关系到三峡工程的成败。对于如何解决库区５０多万农村移民的安置出路，三峡工程移民安置可行性研究和库区众多的关于农村移民安置工作报告中早有定论。

THE RELATIONSHIP BETWEEN LAND CARRYING CAPACITY AND RURAL SETTLERS ARRANGEMENT IN THREE GORGE RESERVOIR AREA

The arrangement for the rural settlers in Three Gorge Reservior is a branch project of the Three Gorge Porject system.It has a bearing on the success or failure of the Three Gorge Project.Many reports on the rural settlers arrangement believe that all rural settlers can resettle themselves well in Three Gorge Reservoir area because of the richness in land resources there.Exploiting uncultivated land and improving soil can make up for the loss of farmland which will be inundated with water.But analysis of the present land use condition shows that the land productivity is low and the population pressure is already beyord the carrying capacity of land.It is not realistic to arrange a large number of settlers in the area.Exploiting uncultivated land brings about soil and water erosion,and will worsen the ecologic environment.It is difficult that all settlers be lifted out of poverty if they are to be resettled in the area.For this reason,emigration is necessary.