Rewetting global wetlands effectively reduces major greenhouse gas emissions

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Rewetting global wetlands effectively reduces major greenhouse gas emissions. / Zou, Junyu; Ziegler, Alan D.; Chen, Deliang; McNicol, Gavin; Ciais, Philippe; Jiang, Xin; Zheng, Chunmiao; Wu, Jie; Wu, Jin; Lin, Ziyu; He, Xinyue; Brown, Lee E.; Holden, Joseph; Zhang, Zuotai; Ramchunder, Sorain J.; Chen, Anping; Zeng, Zhenzhong.

I: Nature Geoscience, Bind 15, 2022, s. 627–632.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Zou, J, Ziegler, AD, Chen, D, McNicol, G, Ciais, P, Jiang, X, Zheng, C, Wu, J, Wu, J, Lin, Z, He, X, Brown, LE, Holden, J, Zhang, Z, Ramchunder, SJ, Chen, A & Zeng, Z 2022, 'Rewetting global wetlands effectively reduces major greenhouse gas emissions', Nature Geoscience, bind 15, s. 627–632. https://doi.org/10.1038/s41561-022-00989-0

APA

Zou, J., Ziegler, A. D., Chen, D., McNicol, G., Ciais, P., Jiang, X., Zheng, C., Wu, J., Wu, J., Lin, Z., He, X., Brown, L. E., Holden, J., Zhang, Z., Ramchunder, S. J., Chen, A., & Zeng, Z. (2022). Rewetting global wetlands effectively reduces major greenhouse gas emissions. Nature Geoscience, 15, 627–632. https://doi.org/10.1038/s41561-022-00989-0

Vancouver

Zou J, Ziegler AD, Chen D, McNicol G, Ciais P, Jiang X o.a. Rewetting global wetlands effectively reduces major greenhouse gas emissions. Nature Geoscience. 2022;15:627–632. https://doi.org/10.1038/s41561-022-00989-0

Author

Zou, Junyu ; Ziegler, Alan D. ; Chen, Deliang ; McNicol, Gavin ; Ciais, Philippe ; Jiang, Xin ; Zheng, Chunmiao ; Wu, Jie ; Wu, Jin ; Lin, Ziyu ; He, Xinyue ; Brown, Lee E. ; Holden, Joseph ; Zhang, Zuotai ; Ramchunder, Sorain J. ; Chen, Anping ; Zeng, Zhenzhong. / Rewetting global wetlands effectively reduces major greenhouse gas emissions. I: Nature Geoscience. 2022 ; Bind 15. s. 627–632.

Bibtex

@article{c171624b61c74854be5ca29e1e5442ed,
title = "Rewetting global wetlands effectively reduces major greenhouse gas emissions",
abstract = "Carbon and nitrogen losses from degraded wetlands and methane emissions from flooded wetlands are both important sources of greenhouse gas emissions. However, the net-exchange dependence on hydrothermal conditions and wetland integrity remains unclear. Using a global-scale in situ database on net greenhouse gas exchanges, we show diverse hydrology-influenced emission patterns in CO2, CH4 and N2O. We find that total CO2-equivalent emissions from wetlands are kept to a minimum when the water table is near the surface. By contrast, greenhouse gas exchange rates peak in flooded and drained conditions. By extrapolating the current trajectory of degradation, we estimate that between 2021 and 2100, wetlands could result in greenhouse gas emissions equivalent to around 408 gigatons of CO2. However, rewetting wetlands could reduce these emissions such that the radiative forcing caused by CH4 and N2O is fully compensated by CO2 uptake. As wetland greenhouse gas budgets are highly sensitive to changes in wetland area, the resulting impact on climate from wetlands will depend on the balance between future degradation and restoration.Global in situ observations show greenhouse gas emissions from wetlands are lowest when the water table is near the surface, and therefore rewetting wetlands could substantially reduce future emissions.",
keywords = "METHANE EMISSIONS, CARBON-DIOXIDE, ECOSYSTEM METABOLISM, CLIMATE-CHANGE, SYSTEM MODEL, EXCHANGE, EXTENT, PEATLANDS, TRENDS, PEAT",
author = "Junyu Zou and Ziegler, {Alan D.} and Deliang Chen and Gavin McNicol and Philippe Ciais and Xin Jiang and Chunmiao Zheng and Jie Wu and Jin Wu and Ziyu Lin and Xinyue He and Brown, {Lee E.} and Joseph Holden and Zuotai Zhang and Ramchunder, {Sorain J.} and Anping Chen and Zhenzhong Zeng",
year = "2022",
doi = "10.1038/s41561-022-00989-0",
language = "English",
volume = "15",
pages = "627–632",
journal = "Nature Geoscience",
issn = "1752-0894",
publisher = "nature publishing group",

}

RIS

TY - JOUR

T1 - Rewetting global wetlands effectively reduces major greenhouse gas emissions

AU - Zou, Junyu

AU - Ziegler, Alan D.

AU - Chen, Deliang

AU - McNicol, Gavin

AU - Ciais, Philippe

AU - Jiang, Xin

AU - Zheng, Chunmiao

AU - Wu, Jie

AU - Wu, Jin

AU - Lin, Ziyu

AU - He, Xinyue

AU - Brown, Lee E.

AU - Holden, Joseph

AU - Zhang, Zuotai

AU - Ramchunder, Sorain J.

AU - Chen, Anping

AU - Zeng, Zhenzhong

PY - 2022

Y1 - 2022

N2 - Carbon and nitrogen losses from degraded wetlands and methane emissions from flooded wetlands are both important sources of greenhouse gas emissions. However, the net-exchange dependence on hydrothermal conditions and wetland integrity remains unclear. Using a global-scale in situ database on net greenhouse gas exchanges, we show diverse hydrology-influenced emission patterns in CO2, CH4 and N2O. We find that total CO2-equivalent emissions from wetlands are kept to a minimum when the water table is near the surface. By contrast, greenhouse gas exchange rates peak in flooded and drained conditions. By extrapolating the current trajectory of degradation, we estimate that between 2021 and 2100, wetlands could result in greenhouse gas emissions equivalent to around 408 gigatons of CO2. However, rewetting wetlands could reduce these emissions such that the radiative forcing caused by CH4 and N2O is fully compensated by CO2 uptake. As wetland greenhouse gas budgets are highly sensitive to changes in wetland area, the resulting impact on climate from wetlands will depend on the balance between future degradation and restoration.Global in situ observations show greenhouse gas emissions from wetlands are lowest when the water table is near the surface, and therefore rewetting wetlands could substantially reduce future emissions.

AB - Carbon and nitrogen losses from degraded wetlands and methane emissions from flooded wetlands are both important sources of greenhouse gas emissions. However, the net-exchange dependence on hydrothermal conditions and wetland integrity remains unclear. Using a global-scale in situ database on net greenhouse gas exchanges, we show diverse hydrology-influenced emission patterns in CO2, CH4 and N2O. We find that total CO2-equivalent emissions from wetlands are kept to a minimum when the water table is near the surface. By contrast, greenhouse gas exchange rates peak in flooded and drained conditions. By extrapolating the current trajectory of degradation, we estimate that between 2021 and 2100, wetlands could result in greenhouse gas emissions equivalent to around 408 gigatons of CO2. However, rewetting wetlands could reduce these emissions such that the radiative forcing caused by CH4 and N2O is fully compensated by CO2 uptake. As wetland greenhouse gas budgets are highly sensitive to changes in wetland area, the resulting impact on climate from wetlands will depend on the balance between future degradation and restoration.Global in situ observations show greenhouse gas emissions from wetlands are lowest when the water table is near the surface, and therefore rewetting wetlands could substantially reduce future emissions.

KW - METHANE EMISSIONS

KW - CARBON-DIOXIDE

KW - ECOSYSTEM METABOLISM

KW - CLIMATE-CHANGE

KW - SYSTEM MODEL

KW - EXCHANGE

KW - EXTENT

KW - PEATLANDS

KW - TRENDS

KW - PEAT

U2 - 10.1038/s41561-022-00989-0

DO - 10.1038/s41561-022-00989-0

M3 - Journal article

VL - 15

SP - 627

EP - 632

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

ER -

ID: 316517487