开放区域耕地资源人口容量研究─—以沪苏锡常城市连绵区为例

人口容量是近年来地理学和人口学研究的热点问题。传统的研究方法往往把人口容量支持系统局限于关闭区域不可移动的自然资源，如耕地等，忽视与外界的物能交换，而这种交换在现代开放经济条件下对区域人口容量是至关重要的。本文以人多地少、物能交换频繁的沪苏锡常城市连绵区为例，考察了开放条件下区际补给对耕地资源人口容量的影响，并就有关的问题进行了理论上的分析，以有助于人口容量理论的研究和发展。

Population Carrying Capacity of Cultivated Land in Open Region: Case Study of Hu-Su-Xi-Chang Megalopolis

Population carrying capacity was the focus of research in Geography and Demography in the recent years. The traditional studies, which had many limitations, was mainly on the carrying capacity of unmovable natural resources such as cultivated land in a close region without exchanges of matter to and from the outside world. Modern regional economic system is an open one, which exchanges matters with other regions frequently. This is an important factor to enhance the carrying capacity of population in a region. In this article, the author take an example of Hu - Su - Xi - Chang Megalopolis in the Changjiang Delta,which has more population, less cultivated land and a high exchange rate of matter and energy, and study the effect of inter - regional exchanges of production and resoures on the carring capacity of cultivated land in this open area. At last, the author make some discussions and conclusons about the theory of population carrying capacity.