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中国煤矿甲排放源在国家和省级的特点

Di Chen¹, Mengyue Ma¹, Liting Hu¹

¹College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.

Environmental research

|July 4, 2024

概括

中国中国中国中国.

科学领域:

环境科学环境科学
气候变化研究气候变化研究
温室气体排放量温室气体排放量

背景情况:

甲 (CH4) 是一种强大的温室气体,中国是全球最大的排放国.
煤矿甲 (CMM) 是中国CH4排放的一个重要的人为因素.
准确的CMM排放数据和省级分析对于有效的减排策略至关重要.

研究的目的:

从1980年到2022年,制定一个全面的中国CMM排放清单.
量化不同CMM来源的时间变化和省级贡献.
为目标CMM减排战略提供信息.

主要方法:

构建了一个详细的CMM排放清单,考虑了从1980年到2022年的五个来源和利用情况.
量化国家和省级CMM排放贡献.
根据针对性战略的排放结构将省份分为组.

主要成果:

地下采矿对CMM排放的贡献从1980年的89%下降到2022年的69%.
自1999年以来,地下废弃的煤矿已成为第二大CMM来源.
确定了主要的发射省份,并注意到与现有数据库 (例如,EDGAR v8) 的差异.
在几个省份观察到显著的排放减少,这些省份没有被EDGAR v8.8捕捉到.

结论:

中国的CMM排放来源已经发生了重大转变,废弃的矿山变得越来越重要.
省级分析揭示了不同的排放模式,需要量身定制的减排方法.
废弃的煤矿排放量现在在更多的省份占主导地位,而不是地下采矿排放量,需要紧急关注.

关键词:

中国中国中国中国.煤矿的煤炭矿是一个煤矿.减少排放减少排放甲排放排放量甲排放量来源贡献的贡献来源.

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