What question did this study set out to answer?

This research aims to investigate the spatial variability of air-sea CO2 flux and its carbon sources in the Yangtze River estuary and surrounding coastal areas.

May 6, 2026WaterOpen Access

Spatial Variability of Air–Sea CO2 Flux and Their Carbon Sources During Early Spring in the Yangtze River Estuary and Adjacent Coastal Areas

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Authors

WLWeiwei LiHarbin University of Science and Technology SLSidan LyuChinese Academy of Sciences XWXuefa WenChinese Academy of Sciences

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Implication

Investigation reveals spatial variability in CO2 flux and sources in coastal areas, indicating significant biological activity and carbon sequestration effects.

Key Points

This research aims to investigate the spatial variability of air-sea CO2 flux and its carbon sources in the Yangtze River estuary and surrounding coastal areas.
Analyzed air-sea CO2 flux in March 2025 across the Yangtze River estuary and coastal areas.
Measured dissolved inorganic carbon concentration, pH, and δ13CDIC.
Conducted quantitative apportionment of DIC sources.
Identified the estuary as a net CO2 source at 7.3 ± 8.7 mmol m−2 d−1.
Demonstrated spatial variability of DIC sources declining from the inner estuary to offshore areas.
Found atmospheric CO2 invasion as the dominant DIC source, followed by carbonate dissolution and organic matter degradation.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69faa30204f884e66b533a9a https://doi.org/10.3390/w18091078

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Implication

Investigation reveals spatial variability in CO2 flux and sources in coastal areas, indicating significant biological activity and carbon sequestration effects.

Spatial Variability of Air–Sea CO2 Flux and Their Carbon Sources During Early Spring in the Yangtze River Estuary and Adjacent Coastal Areas

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Key Points

Cite This Study

Spatial Variability of Air–Sea CO2 Flux and Their Carbon Sources During Early Spring in the Yangtze River Estuary and Adjacent Coastal Areas

Discussion

Member takes

Implication

Key Points

Cite This Study

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