Anthropogenic and natural controls on atmospheric δ13C-CO2 variations in the Yangtze River delta: insights from a carbon isotope modeling framework

Hu, Cheng; Xu, Jiaping; Liu, Cheng; Chen, Yan; Yang, Dong; Huang, Wenjing; Deng, Lichen; Liu, Shoudong; Griffis, Timothy J.; Lee, Xuhui

doi:https://doi.org/10.5194/acp-21-10015-2021

Articles | Volume 21, issue 13

https://doi.org/10.5194/acp-21-10015-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-10015-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 13

Research article

|

06 Jul 2021

Research article |

| 06 Jul 2021

Anthropogenic and natural controls on atmospheric δ¹³C-CO₂ variations in the Yangtze River delta: insights from a carbon isotope modeling framework

Cheng Hu, Jiaping Xu, Cheng Liu, Yan Chen, Dong Yang, Wenjing Huang, Lichen Deng, Shoudong Liu, Timothy J. Griffis, and Xuhui Lee

Supplement

https://doi.org/10.5194/acp-21-10015-2021-supplement

Data sets

Carbon dioxide concentration and 13C measurement in Nanjing (2013–2015) Jiaping Xu and Xuhui Lee https://yncenter.sites.yale.edu/data-access

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Short summary

Seventy percent of global CO₂ emissions were emitted from urban landscapes. The Yangtze River delta (YRD) ranks as one of the most densely populated regions in the world and is an anthropogenic CO₂ hotspot. Besides anthropogenic factors, natural ecosystems and croplands act as significant CO₂ sinks and sources. Independent quantification of the fossil and cement CO₂ emission and assessment of their impact on atmospheric δ¹³C-CO₂ have potential to improve our understanding of urban CO₂ cycling.