Cited by 106Peatlands and Wetlands EcologySoil Carbon and Nitrogen DynamicsClimate change and permafrost

Effects of water level alteration on carbon cycling in peatlands

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Zhong, Yehui, Jiang, Ming, Middleton, Beth A.·2020·Ecosystem Health and Sustainability

Abstract

ABSTRACT Globally, peatlands play an important role in the carbon (C) cycle. High water level is a key factor in maintaining C storage in peatlands, but water levels are vulnerable to climate change and anthropogenic disturbance. This review examines literature related to the effects of water level alteration on C cycling in peatlands to summarize new ideas and uncertainties emerging in this field. Peatland ecosystems maintain their function by altering plant community structure to adapt to changing water levels. Regarding primary production, woody plants are more productive in unflooded, well-aerated conditions, while Sphagnum mosses are more productive in wetter conditions. The responses of sedges to water level alteration are species-specific. While peat decomposition is faster in unflooded, well aerated conditions, increased plant production may counteract the C loss induced by increased ecosystem respiration (ER) for a period of time. In contrast, rising water table maintains anaerobic conditions and enhances the role of the peatland as a C sink. Nevertheless, changes in DOC flux during water level fluctuation is complicated and depends on the interactions of flooding with environment. Notably, vegetation also plays a role in C flux but particular species vary in their ability to sequester and transport C. Bog ecosystems have a greater resilience to water level alteration than fens, due to differences in biogeochemical responses to hydrology. The full understanding of the role of peatlands in global C cycling deserves much more study due to uncertainties of vegetation feedbacks, peat–water interactions, microbial mediation of vegetation, wildfire, and functional responses after hydrologic restoration.

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Crossref · 10.1080/20964129.2020.1806113

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468 of 468 references verified0 citation errors · 0 not checkable

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  • Peatlands make up 60% of wetlands in the world and play a crucial role in the C cycle; raising water tables and avoiding draining peatlands should be executed to conserve stored C.

    “Peatlands make up 60% of the wetlands in the world and play a crucial role in the C cycle. Raising water tables and avoiding draining peatlands should be executed to conserve the vital C stored in peatlands.192”

    From Technologies and perspectives for achieving carbon neutrality (2021) · cites this paper as [192]

  • There has been increasing mechanistic understanding and many encouraging signs of experimental progress on the complicated multi-electron and multi-proton transfer reaction system of electrochemical CO2RR.

    “There has been increasing mechanistic understanding as well as many encouraging signs of experimental progress on this complicated multi-electron and multi-proton transfer reaction system.192,315,322, 323, 324, 325, 326”

    From Technologies and perspectives for achieving carbon neutrality (2021) · cites this paper as [192]

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Authors
Zhong, Y., Jiang, M., & Middleton, B. A.
Affiliations
  • Chinese Academy of Sciences (CN)
  • United States Geological Survey (US)
Corresponding author
Jiang, Ming
Venue
Ecosystem Health and Sustainability
Published
2020-09-08
Volume
6
Issue
1
ISSN
  • 2096-4129 (ISSN-L)
  • 2332-8878
OpenAlex
W3083617810
Cited by
106
References
468
Citations by year
2026: 14 · 2025: 29 · 2024: 12 · 2023: 24 · 2022: 14 · 2021: 12 · 2020: 1
FWCI
6.77
Type
journal article
Language
en
Open access
Locations
  • Ecosystem Health and Sustainability (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
the National Key Research and Development Program of China (2016YFA0602303)
Topics
  • Physical Sciences › Environmental Science › Ecology › Peatlands and Wetlands Ecology
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Climate change and permafrost
Keywords
peatlands, groundwater level fluctuation, carbon cycle, carbon storage, peat decomposition, ecosystem respiration, peat moss, Cyperaceae, DOC flux, vegetation feedback, hydrological restoration, climate change impacts, forest fires

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