Shaanxi Province, Based On The Environmental Kuznets Curve, Environmental Quality And Economic Growth Relationship Study

With economy growth and industrialization, resources and environmental issues become seriously increasingly. Then, people argue about that economy growth is whether the reason for environmental issues or the dynamic of resolve environmental issues. This argue give rise to the research upsurge of the relation of environment and economy. Environmental Kuznets Curve (EKC) hypothesis is the most typical among those. But now the research about EKC main focus on developed region, and the absolute quantity of environmental pollution is selected mostly and fit with general model, which can't react the real relation of environment and economy, meanwhile, at home, demonstration of EKC is the main research interests, while, to the influence factors of environmental quality is payed attention rarely.EKC is applied to Shaanxi province located northwest of our country where is undevelopment and in which the contradiction of environment and economy is prominent, environmental pollution indicators and ecology environment indicators are selected simultaneously, and absolute quantity and relative quantity are comparative studied, fixed model is broken away from, the best model is chosen from many models on the basis of Goodness-of-Fit, the main influence factors of environmental quality and the relative influence degree are determined by stepwise regression. The conclusion as follows:(1) The type of regression curve of 28 environmental indicators and economy growth are not noly "inversed U pattern" as EKC but also "U pattern", "N pattern", "inversed N pattern" etc. Just the regression curve of 6 ecological environment indicators such as forest area, cultivated area, cultivated area per capita, cultivated area per rural people, grassland area and grassland area per capita and 2 environmental pollution indicators such as strength of industrial dust discharged and gross of municipal solide waste and economic indicator assume "inversed U pattern" as EKC, and have climed over the peak of EKC.(2)9 environmental indicators such as industrial wastewater discharge, industrial gaseouswaste emission, industrial solid wastes production, municipal solide waste per urbanus, gross of municipal excrement, municipal excrement per urbanus, forest area per capita and the forest cover rate are deteriorate, the residue are perfect.(3)The comparative study of absolute quantity and relative quantity showe that the deserve impact of economy growth is that absolute quantity of industrial pollution is more serious than their relative quantity, absolute quantity of urban pollution is similar to their relative quantity, absolute quantity of each ecological environment is different from its relative quantity, absolute quantity of cultivated land indicators and grassland indicators are similar to their relative quantity, while absolute quantity of forest area indicators and public lawn area indicators are smaller than their relative quantity.(4)Influence factors analysis showe that the relation between environment and its influence factors is complex. Each environmental indicator is influenced by different factors, and the degree are different. The same influence factors act on different environmental indicators, the degree are also different. According to the universality degree of influence, all influence factors rank ordering from high to low as economy growth, population size, population structure, technical merit, industrial structure, pollution abatement investment, foreign direct invesment, international trade and quality of population.(5)On account of influence factors of environmental quality, suggestion which can promote environment and economy harmonious development are put forward, such as control the population size and improve the population quality, promote sustainable use of agricultural land in the progress of urbanization, modify the industrial structure, adjust environmental policy and trade policy, change the unreasonable tendency of foreign investment, promote symmetrical advance of production technology and ecological technology, increase pro-environment input, perfect pro-environment inverstment structure, improve pro-environment inverstment efficiency etc.