经济发达地区人口密度大，人均土地资源紧缺，实现耕地总量动态平衡的难度非常大。人口增加，居住及配套建设用地必然增加；经济规模的扩展和经济总量的提高，必然伴随建设用地规模的适度扩张。因而，从社会经济可持续发展的角度考虑，在经济发达地区如何实现耕地总量动态... In economically developed regions, population density is so great that scarce land resources per capita means that it is very difficult to achieve a dynamic balance of the total arable land. Increasing population, living and supporting construction land will inevitably increase; the expansion of economic scale and the increase of economic aggregate will inevitably accompany the moderate expansion of the scale of construction land. Therefore, from the perspective of sustainable social and economic development, how to realize the total dynamic of cultivated land in economically developed areas ...