Application Of Ecological Footprint In City-Planning Environmental Impact Assessment

To the construction nearsightedness and the weak-controlling in the course of city-planning,this paper takes the city-planning of Luojiang Area in Quanzhou City as an example and discusses the application of ecological footprint in environmental impact assessment for integrated city-planning,performing a useful exploration for the environmental assessment for city-planning in the process.At the beginning of city-planning in Luojiang Area,the ecological bottom line was set as 2.79108hm~2.In the process of city-planning in Luojiang,according to the results of current assessment,cropland is proposed to be a limiting factor.Through looking up previous statistics yearbook of Luojiang Area,this paper applied the ecological footprint analysis to calculate and analyze the ecological footprint and correlative indexes from 1997 to 2007,and quantitatively evaluated the sustainable development degree of ecological and economic system,then applied grey theory toforecast the development tendency of ecological footprint,the ecological carrying capacity and ecological deficit from 2008 to 2020,proposed the countermeasures how to alleviate the ecological deficit and realize the sustainable development.Conclusions are drawn as follows:1.The per capita ecological footprint demand and supply of Luojiang Area are respectively 1.03786hm~2 and 0.31076hm~2,the per capita ecological deficit reaches as high as 0.68473hm~2.So it is not in an sustainable development condition.Looking from the per capita ecological footprint demand structure,cultivated land demand is the biggest one.2.The per capita ecological footprint basically increases progressively year by year during 1997-2007,especially the cultivated land.3.According to the existing development pattern,through GM(1,1) model forecast, the per capita ecological footprint is 2.79108hm~2,the per capita ecological carrying capacity and per capita ecological deficit are respectively 0.36969hm~2 and 2.42139hm~2. This means that the human activity intensity of Luojiang Area will go far beyond the ecosystem carrying capacity scope in the future,the sustainable development will be faced with a more stern test.Therefore,powerful measures must be taken to alleviate the pressure which the humanity bring to the ecosystem because of excessive development and use,and realize the sustainable development of society,economy and ecology.4.In order to reduce the ecological deficit and realize the region sustainable development under the condition of not reducing people's living standards in Luojiang Area,specific measures that should be taken are as follows:controlling the population scale,improving the human quality;exploiting the reserve land resource,establishing and perfecting the cultivated land protection system;optimizing the industrial structure, strengthening the technical innovation;using existing resource storage quantity effectively,establishing social producing and consuming system that conserves resource;improving the basic producing conditions of agriculture,improving the agricultural synthetical productivity;exploiting water and electricity and other non-carbon resources,reducing the fossil energy expense;enriching biological product multiplicity,satisfying human expense demand diversification.