High Resolution Carbon Dioxide Emission Gridded Data for China Derived from Point Sources

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• 作者：Jinnan Wang ; Bofeng Cai ; Lixiao Zhang ; Dong Cao ; Lancui Liu ; Ying Zhou ; Zhansheng Zhang ; Wenbo Xue
• 刊名：Environmental Science & Technology
• 出版年：2014
• 出版时间：June 17, 2014
• 年：2014
• 卷：48
• 期：12
• 页码：7085-7093
• 全文大小：603K
• 年卷期：v.48,no.12(June 17, 2014)
• ISSN：1520-5851

文摘

A high spatial resolution carbon dioxide (CO₂) emission map of China is proving to be essential for China鈥檚 carbon cycle research and carbon reduction strategies given the current low quality of CO₂ emission data and the inconsistencies in data quality between different regions. Ten km resolution CO₂ emission gridded data has been built up for China based on point emission sources and other supporting data. The predominance of emissions from industrial point sources (84% of total emissions) in China supports the use of bottom-up methodology. The resultant emission map is informative and proved to be more spatially accurate than the EDGAR data. Spatial distribution of CO₂ emissions in China is highly unbalanced and has positive spatial autocorrelation. The spatial pattern is mainly influenced by key cities and key regions, i.e., the Jing-Jin-Ji region, the Yangtze River delta region, and the Pearl River delta region. The emission map indicated that the supervision of 1% of total land could enable the management of about 70% of emissions in China.