2005～2015年间中国省域物质资源消耗的解耦状态分析

Decoupling analysis of provincial material consumption in China during 2005～2015

基于修正的原生资源消耗当量的估算结果和解耦指数,本文对2005~2015年间中国各省区市经济增长对物质资源投入的依赖度进行了测度和影响因素分解,并比较了其与相关资源环境压力指标解耦状态在时间趋势和空间格局等方面的异同.结果表明:2005~2015年中国大多数省区市物质资源消耗达到弱解耦,且"十二五"时期其解耦水平较"十一五"有显著提升.同时物质资源的解耦水平普遍低于水资源消耗、CO2、SO2和废水排放等4项指标的解耦水平,好于固废排放,建议政策制定者考虑使用更严格和更综合的政策工具来全面改善物质资源管理,提高资源效率.

Based on the estimates of resource consumption with the adjustedraw material consumption method and the decoupling index,this study measured and decomposed the dependent relationship between provincial economic growth and resource consumption in China during the period 2005-2015.This paper also investigated the temporal and spatial pattern in decoupling level of material consumption and other relevant environmental pressure.The results showed that most provinces experienced weak decoupling between growth and resource consumption,while their decoupling performance has substantially improved from the period of 11 th five-year plan(FYP)to the period of 12 th FYP.Generally,the decoupling level of material consumption was lower than that of water demand,CO2/SO2 emission and wastewater disposal,but higher than that of solid waste emission.Based on our findings,we proposed that more stringent and comprehensive policy instruments should be considered by policy makers to improve overall material resource efficiency.