气候变化研究进展2023，Vol.19Issue(6)：693-703,11.DOI:10.12006/j.issn.1673-1719.2023.119
全球发达国家CH4排放现状及特征分析
Global methane emission status and characteristics based on greenhouse gas inventory in UNFCCC Annex I countries
摘要
Abstract
The status,trends and key sources of CH4 emissions in Annex I countries are explored,based on GHGs emissions data from Parties submitted by Annex I countries to the United Nations Framework Convention on Climate Change(UNFCCC)from 1990 to the most recent inventory year(2020).The results show that:(1)In 2020,the total CH4 emissions of the 42 countries in Annex I of the UNFCCC were 1872231.01 kt CO2-eq,and the combined CH4 emissions of the United States,the Russian Federation and Australia accounted for 60%of the total emissions.(2)Compared with 1990,the overall CH4 emissions of Annex I countries/groups of UNFCCC showed a downward trend in 2020,of which United States,the Russian Federation,Australia,the European Union(Convention)and the European Union(Kyoto Protocol)decreased by 14.79%,29.69%,24.01%,40.56%and 40.34%respectively,while Turkey,Spain,New Zealand and Ireland increased by 50.62%,2.49%,3.97%and 7.91%respectively.(3)CH4 emissions in major developed countries mainly come from the agricultural and energy sectors,followed by the waste sector.Among them,in the agricultural sector mainly from enteric fermentation,followed by manure management;CH4 emissions from the energy sector come mainly from escape emissions from fuels;The main source of emissions in the waste sector is solid waste landfills.关键词
UNFCCC/温室气体/CH4/排放特征Key words
UNFCCC/GHGs/CH4/Emission characteristics引用本文复制引用
高文康,胡杰,马占云,高东,刘舒乐,李照濛,严薇,耿瑾泽,高庆先..全球发达国家CH4排放现状及特征分析[J].气候变化研究进展,2023,19(6):693-703,11.基金项目
国家重点研发计划(2022YFC3703003) （2022YFC3703003）
能源基金会项目(G-2309-35044) （G-2309-35044）
