中文摘要：

生态足迹模型可以测度和比较人类活动与自然生态承栽力的关系。通过对生态足迹消费和生态承栽力的分析，得知长株潭城市群生态系统所提供的生态基础远远不能满足社会生产的需要。在“两型社会”建设的背景下，区域生态系统应与人口容量相协调。将万元GDP生态足迹应用于长株潭城市群人口容量预测，可以得出2020年长株潭城市群市区的适度人口容量。

英文摘要：

Ecological footprint model can measure and compare the relationship between human activities and natural ecological carrying capacity. By analysis of the ecological footprint consumption and ecological carrying capacity, this paper maintains that CZT ecosystem is far from being able to meet the needs of social production. Against the context of ＂double -oriented society＂ construction, the population capacity should coordinate with the regional ecological system. Applying the million GDP ecological footprint to the population capacity forecast, We can predict the optimum population capacity of CZT city cluster by 2020.