桂林生态城市建设研究初探

桂林市岩溶石山发育、降水时空分布不均,耕地、煤炭、石油、铁矿等重要资源匮乏,使得区域人口、经济与资源间的矛盾日益凸显。主成分分析和生态足迹计算显示：目前,全市经济社会发展与人口资源环境基本协调,万元GDP生态足迹逐年降低,生态系统发展能力有较大幅度增长,但综合环境系统滞后综合经济系统的发展,人均生态足迹超过生态承载力1.55倍,人均生态赤字逐年增加,生态足迹多样性指数分布不均。因此,必须调整产业结构,加强生态环境治理,发展生态产业。

Study on Ecological City Coustruction in Guilin

In Guilin,karst mountains are in development,and the precipitation appears uneven distribution in time and space.Some resources,including land,coal,petroleum and iron ore,are scarce.Thus the conflict between demographic,economic and resource is increasing.Principal component analysis and ecological footprint calculations show that the city economic development and social population resources and environmental coordinate,and the ecological footprint of million GDP is reducing year by year,and the ability of ecosystem development is substantially increasing.But the development of integrated environmental system lags behind the development of integrated economic system,it is 1.55 times for per capita ecological footprint more than ecological carrying capacity,and the per capita ecological deficit is increaseing year by year.Ecological footprint diversity index shows uneven distribution.Therefore,it is necessary to readjust the industrial structure,to strengthen the management of ecological environment,and to develop the eco-industries.