Regional differences of municipal solid waste generation in China based on the STIRPAT model
XU Bo1,2, ZHAO Yue1, JU Mei-ting1,2, CHU Chu-li1,2, ZHANG Zhe-yu1
1. College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; 2. Tianjin Engineering Research Center of Biomass Solid Waste Resources Technology, Nankai University, Tianjin 300071, China
Abstract:Based on China's provincial-level panel data from 2006 to 2017, influences of population, affluence, and technology on the regional differences of municipal solid waste (MSW) generation from the national and regional level, respectively were studied, by adopting a fixed effect model derived from the STIRPAT theoretical model. The results showed in recent years, the generation of MSW increased rapidly and the changes varied significantly across regions. From the perspective of population, the impact of urbanization level, population size, family size, and population aging on MSW generation decreased in turn at the national level, with elasticity coefficients of 1.152, 0.585, -0.478, and -0.230, respectively. In the eastern region, the generation of MSW was further promoted by the improvement of urbanization level, the increase of population size, and the miniaturization of family size, while the increase of population aging reduced the generation of MSW. However, in the central and western regions, the positive effect of urbanization level and the negative effect of population aging were significantly stronger than in the eastern region, whereas the positive effect of population size and family size were significantly weaker than in the eastern region. From the perspective of affluence, an inverted N-type relationship was observed between the per capita consumption expenditure of residents and the generation of MSW at the national level. The generation of MSW increased remarkably along with the improvement of per capita consumption expenditure and per capita GDP in the eastern region. From the perspective of technology, the elasticity coefficients of domestic energy consumption intensity and municipal appearance environmental sanitation expense were 0.120 and -0.0168 respectively, of which the regional difference was not significant.
许博, 赵月, 鞠美庭, 楚春礼, 张哲予. 中国城市生活垃圾产生量的区域差异-基于STIRPAT模型[J]. 中国环境科学, 2019, 39(11): 4901-4909.
XU Bo, ZHAO Yue, JU Mei-ting, CHU Chu-li, ZHANG Zhe-yu. Regional differences of municipal solid waste generation in China based on the STIRPAT model. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(11): 4901-4909.
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