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.