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- Title
Ocean afforestation is a potentially effective way to remove carbon dioxide.
- Authors
Wang, Wei-Lei; Fernández-Méndez, Mar; Elmer, Franziska; Gao, Guang; Zhao, Yangyang; Han, Yuye; Li, Jiandong; Chai, Fei; Dai, Minhan
- Abstract
Nutrient reallocation The nutrient reallocation feedback mentions that if nutrients are not consumed by I Sargassum i , they would go to phytoplankton which is supposed to have lower PIC:POC ratios compared to I Sargassum i . Calcification The calcification feedback argues that CO SB 2 sb production due to the formation of carbonate shells attached to the surface of I Sargassum i can cancel most of the photosynthetic uptake of CO SB 2 sb . Since phytoplankton has similar or even higher ratios of PIC:POC, nutrient reallocation to I Sargassum i is favorable for CDR given the reasons stated above. Even if the nutrient reallocation effect is considered, the PIC compensation effect by phytoplankton is underestimated by picking a low PIC:POC ratio (0.01) for phytoplankton[11], [12].
- Subjects
AFFORESTATION; CARBON dioxide; OCEAN; DISSOLVED organic matter; PHYTOPLANKTON
- Publication
Nature Communications, 2023, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-39926-z