Decomposition Effect on China's Annual Ecological Footprints Variation from 1990 to 2004
LIU Jian-xing,WANG Qing,SUN Peng,GU Xiao-wei,LI Guang-jun(Resources and Ecological Economics Research Center,Northeastern University,Liaoning 110004,China)
There is a certain impact and influence on the ecological environment when human utilizes natural resources and obtain access to the ecological services function nature provides.Ecological footprint indicator is such an integrated indicator to measure the use of human resources and the effects on the ecological environment.The ecological footprint is not only a means to record the process of the survival and development of mankind's ecological resources of changing history,but also embodies the scale of economic development and the evolution of consumption levels for each stage.Through building the decomposition model of ecological footprint,variable of ecological footprints of China during the period from 1990 to 2004 was decomposed to three different changing effects,namely GDP,structure of industry economy and ecological footprint identity of industries,and each decomposition effect was measured and analyzed in this study.The results show that: 1) Varied factors impacted together on variation of ecological footprints and these factors exerted different effects on the variable of general ecological footprints in different periods of time.From 1990 to 2004 the total footprint changes always show an increasing trend.Inter-annual change' mean of ecological footprint is 2.1082×108ha,thereinto,the scale of economic development,the industrial structure and the identity of industries ecological footprint have different contributions to the change,being 2.1082×108ha,-0.6029×108ha and-0.4398×108ha respectively.2) Growth of GDP is a drive to the increase of the general ecological footprints,while the change in industrial structure and increase of ecological footprint identity of industries constrain the growth of the general ecological footprints variation on the contrary.3) It is a key in depression periods of time to reduce growth of ecological footprints by adjusting structure of industry economy and improving identity of ecological footprint.This research will promote understanding the theory about harmonous development stratagem and development occasions,and possess reference value by all means to the adjustment of policy of industrial development and the study of sustainable development relatively.
【CateGory Index】： X22
【CateGory Index】： X22