Dong et al. (2026): Canadian net forest CO₂ uptake enhanced by heat drought via reduced respiration
Guanyu Dong, Fei Jiang, Yongguang Zhang, Weimin Ju, Shilong Piao, Philippe Ciais, Wouter Peters, Ingrid T. Luijkx, Junjie Liu, Frédéric Chevallier, Ning Zeng, et al., IN: Nature Geoscience, https://doi.org/10.1038/s41561-025-01875-1
The response of net forest carbon uptake to warm extremes remains elusive. The year 2023 was at the time ‘the hottest year on record’ globally, with Canada’s forests experiencing warm anomalies of above 2 °C and unprecedented drought and wildfires, providing a unique case to examine the response of boreal forest net carbon uptake to climate extremes. Here the authors combine satellite-based atmospheric CO₂ flux inversions with ground-based in situ observations of CO₂ fluxes and concentrations to investigate Canada’s forest net carbon uptake and its underlying mechanisms in 2023.