中国大中城市社区碳排放现状分析

Analysis of the Current Status of Community Carbon Emissions in Large and Medium⁃sized Cities in China

统计35个大中城市2016—2020年社区碳排放情况,分别从碳排放量、碳排放强度和碳排放结构3个方面分析排放现状。研究发现,城市层面的碳排放总量和净碳排放量都呈持续增长状态,2020年碳排放总量、净碳排放量最高的城市分别为重庆、北京,最低分别为乌鲁木齐、南昌;人均碳排放强度、地均碳排放强度和碳排放强度分别呈持续增长、先增后减再增、先减后增趋势,西安、郑州以北城市人均碳排放强度较高,长江、珠江三角洲城市碳排放强度普遍较低;碳排放结构以交通出行和电力消费为主,2020年分别占36.5%和36.0%,交通出行和电力消费碳排放占比最高的城市分别为昆明和福州,所占比例分别为52.0%和53.5%,结果为社区层面实现“双碳”目标提供科学依据和数据支撑。

The community carbon emissions of 35 large and medium⁃sized cities from 2016 to 2020 were counted,and the current status of emissions was analyzed in three aspects,namely,carbon emissions,carbon emissions intensity and carbon emissions structure.It is found that the total carbon emissions and net carbon emissions at the city level are showing continuous growth,and the cities with the highest total carbon emissions and net carbon emissions in 2020 are Chongqing and Beijing,and the lowest are Urumqi and Nanchang;the per capita carbon emission intensity,the per capita carbon emission intensity and the carbon emission intensity show the trends of continuous growth,first increasing and then decreasing and then increasing,and first decreasing and then increasing.And the per capita carbon emission intensity of the cities in the north of Xi'an and Zhengzhou is higher,while the cities in the Yangtze river and Pearl river delta generally are lower;the structure of carbon emission is dominated by transportation and electricity consumption,which will account for 36.5%and 36.0%respectively in 2020,and the cities with the highest percentage of carbon emission from transportation and electricity consumption are Kunming and Fuzhou,with a percentage of 52.0%and 53.5%respectively.The results provide scientific basis and data support for realizing the"dual carbon"goal at the community level.