Articles | Volume 27, issue 1
Research article
10 Jan 2023
Research article |  | 10 Jan 2023

Water level variation at a beaver pond significantly impacts net CO2 uptake of a continental bog

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

Data sets

FLUXNET Canada Research Network - Canadian Carbon Program Data Collection, 1993–2014 FLUXNET Canada Team

Model code and software

CoupModel (v6.0): code and evaluating database (V 6.0) H. He, P.-E. Jansson, and A. Gärdenäs

Short summary
We applied CoupModel to quantify the impacts of natural and human disturbances to adjacent water bodies in regulating net CO2 uptake of northern peatlands. We found that 1 m drops of the water level at the beaver pond lower the peatland water table depth 250 m away by 0.15 m and reduce the peatland net CO2 uptake by 120 g C m-2 yr-1. Therefore, although bogs are ombrotrophic rainfed systems, the boundary hydrological conditions play an important role in regulating water storage and CO2 uptake.