What is it about?
We analyzed the biological effects (photosynthesis, respiration, and decomposition) to the carbonate parameters and air–water CO2 exchange in Tokyo Bay, Ise Bay, and Osaka Bay in Japan using data by cargo-ship measurements and previously published reports.
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Why is it important?
We concluded that (a) bay water strongly absorbs atmospheric CO2, (b) biological effects accounted for 6%–27% of the evaluated CO2 absorption and had significant effects on its seasonal variation, and (c) the biological effects seemed to be mediated mainly by the low degradable carbon/nutrient ratio in wastewater.
Perspectives
This study should improve our understanding of the carbon flow in urbanized coastal areas, which are expanding globally.
tatsuki tokoro
National Institute of Environmental Studies
Read the Original
This page is a summary of: Contribution of Biological Effects to Carbonate‐System Variations and the Air–Water CO
2
Flux in Urbanized Bays in Japan, Journal of Geophysical Research Oceans, May 2021, American Geophysical Union (AGU),
DOI: 10.1029/2020jc016974.
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