Name
Adjacent Forest Harvesting Impacts on Peatland Carbon Exchange at a Single-Site Level: A Preliminary Comparison of CaMP and CLASSIC Models
Date & Time
Monday, May 25, 2026, 4:00 PM - 5:30 PM
Description
Clear-cutting in upstream forested areas can affect down gradient peatland hydrology and carbon exchange by increasing surface runoff, altering local climate and flow regimes, and affecting water table levels in downstream peatlands. These hydrological changes, together with enhanced inputs of dissolved organic carbon, can in turn affect peatland carbon processes, including decomposition rates and methane emissions. However, the extent to which adjacent forest disturbance influences peatland carbon dynamics, and how such effects should be represented in carbon models, remains poorly understood. This study presents a preliminary, single-site comparison of two models, the Canadian Model for Peatlands (CaMP) and the Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC), to evaluate their representation of carbon exchange at a peatland influenced by adjacent forest harvesting. Model simulations were conducted for a montane peatland using site-specific meteorological forcing and vegetation information, and evaluated against eddy covariance observations of carbon fluxes. Preliminary results indicate that both models reproduce the general magnitude of observed net ecosystem exchange (NEE), while exhibiting slight differences in interannual variability related to differences in process-level representations of ecosystem carbon balance. Building on these structural differences, this study explores model-specific approaches to better represent the influence of adjacent hydrological processes. Although based on a single site and still at an early stage, the results provide insight into how such disturbance can be incorporated in both models, and motivates further process-level refinement, multi-site evaluation and cross-model verification.
Location Name
McInnes Room
Full Address
Dalhousie University
Halifax NS
Canada
Session Type
Poster
Abstract ID
409
Speaker Organization
University of Waterloo
Session Name
B-2
Co-authors
Richard M. Petrone, Hydrometeorology Research Group, University of Waterloo Kelly Bona, Environment and Climate Change Canada, Pollutant, Inventory and Reporting Division
Presenting Author
Yi (Abby) Wang, Hydrometeorology Research Group, University of Waterloo