Water level variation at a beaver pond significantly impacts net CO<sub>2</sub> uptake of a continental bog

Abstract C) dynamics of northern peatlands are sensitive to hydrological changes owing to ecohydrological feedbacks. We quantified and evaluated the impact of water level variations in a beaver pond (BP) on the CO 2 CO 2 CO 2 CO 2 m lower than during 2017–2019. Simulated net CO 2 g C m - 2 yr - 1 lower during 1998–2004 compared to 2017–2019 when there was no BP disturbance, which was similar to the differences in measured NEE between those periods. Peatland annual NEE was well correlated with water table depth (WTD) within the bog, and NEE also shows a linear relation with the water level at the BP, with a slope of - g CO 2 - C m - 2 yr - 1 m - 1. The current modelling predicts that the bog may switch from CO 2 ∼ m below the peat surface at the eddy covariance (EC) tower, located on the bog surface 250 m from the BP. This study highlights the importance of natural and human disturbances to adjacent water bodies in regulating the net CO 2  uptake function of northern peatlands.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Water level variation at a beaver pond significantly impacts net CO2 uptake of a continental bog ; volume:27 ; number:1 ; year:2023 ; pages:213-227 ; extent:15
Hydrology and earth system sciences ; 27, Heft 1 (2023), 213-227 (gesamt 15)

Urheber
He, Hongxing
Moore, Tim
Humphreys, Elyn R.
Lafleur, Peter M.
Roulet, Nigel T.

DOI
10.5194/hess-27-213-2023
URN
urn:nbn:de:101:1-2023011204153610876135
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:21 MESZ

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Beteiligte

  • He, Hongxing
  • Moore, Tim
  • Humphreys, Elyn R.
  • Lafleur, Peter M.
  • Roulet, Nigel T.

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