长江经济带二氧化碳净排放时空演变特征及脱钩效应  

Temporal and Spatial Characteristics of Net CO_(2)Emissions and Decoupling Analysis in Yangtze River Economic Belt

作　　者：吴一帆 许杨 唐洋博 贾宁 李玮 李翀 殷国栋 WU Yi-fan;XU Yang;TANG Yang-bo;JIA Ning;LI Wei;LI Chong;YIN Guo-dong(YANGTZE Eco-Environment Engineering Research Center,China Three Gorges Corporation,Beijing 100038,China;Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China;Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology,College of Water Sciences,Beijing Normal University,Beijing 100875,China)

机构地区：[1]中国长江三峡集团有限公司长江生态环境工程研究中心,北京100038 [2]清华大学水利水电工程系,北京100084 [3]北京师范大学水科学研究院,城市水循环与海绵城市技术北京市重点实验室,北京100875

出　　处：《环境科学》2023年第3期1258-1266,共9页Environmental Science

基　　金：国家自然科学基金项目(U2040206)。

摘　　要：研究区域CO_(2)净排放,对“碳中和”战略的实现具有重要意义.以长江经济带为例,在揭示1999~2018年长江经济带CO_(2)净排放时空演变特征的基础上,分析长江经济带不同区域社会发展与CO_(2)净排放的脱钩效应,以期为差异化区域产业发展和碳减排路径提供支持.结果表明:(1)1999~2012年长江经济带CO_(2)排放量上升了2244.23×10^(6)t,碳汇量在研究时间段增长了148.07×10^(6)t;(2)长江经济带呈现“变绿”趋势,2013~2018年中高碳汇量区域(NPP>800 g·m^(-2),以C计)面积较1999~2012年上升了23.25%;(3)长江经济带下游经济社会发展与CO_(2)净排放脱钩效应较强,上、中和下游强脱钩城市占长江经济带强脱钩城市的比例分别为12%、34%和54%.Calculating the fossil energy consumption,revealing the temporal and spatial evolution characteristics of net CO_(2)emissions,and analyzing the decoupling effect between social development and net CO_(2)emissions in different regions of the Yangtze River Economic Belt(YREB)is crucial to support the different regions,allowing them to select their individual industrial development and carbon emission reduction path.The results showed that:(1)from 1999 to 2012,YREB became greener,the CO_(2)emission of the YREB increased by 2244.23 million tons,and the carbon sink increased by 148.07 million tons during the research period.(2)From 2013 to 2018,the area of medium-high carbon sequestration(NPP>800 g·m^(-2),count for C)increased by 23.25%,compared with that from 1999-2012.(3)A highly decoupling effect between social development and net CO_(2)emissions was found in the downstream of the YREB.The highest decoupling cities in the upstream,midstream,and downstream accounted for 12%,34%,and 54%of the highest decoupling cities in the YREB,respectively.

关 键 词：碳排放 植被净初级生产力(NPP) 脱钩效应 长江经济带(YREB) 时空特征 

分 类 号：X24[环境科学与工程—环境科学]