| 长江经济带二氧化碳净排放时空演变特征及脱钩效应 |
| 摘要点击 3641 全文点击 3369 投稿时间：2022-03-17 修订日期：2022-06-07 |
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| 中文关键词 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 |
| 英文关键词 CO2 emissions net primary production (NPP) decoupling effect Yangtze River Economic Belt (YREB) spatiotemporal characteristic |
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| 中文摘要 |
| 研究区域CO2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CO2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CO2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：①1999~2012年长江经济带CO2排放量上升了2244.23×106 t，碳汇量在研究时间段增长了148.07×106 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CO2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%. |
| 英文摘要 |
| Calculating the fossil energy consumption, revealing the temporal and spatial evolution characteristics of net CO2 emissions, and analyzing the decoupling effect between social development and net CO2 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 CO2 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 CO2 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. |
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