Wildfire‐induced increases in photosynthesis in boreal forest ecosystems of North America
Jinhyuk E. Kim,
Jonathan A. Wang,
Yue Li
et al.
Abstract:Observations of the annual cycle of atmospheric CO2 in high northern latitudes provide evidence for an increase in terrestrial metabolism in Arctic tundra and boreal forest ecosystems. However, the mechanisms driving these changes are not yet fully understood. One proposed hypothesis is that ecological change from disturbance, such as wildfire, could increase the magnitude and change the phase of net ecosystem exchange through shifts in plant community composition. Yet, little quantitative work has evaluated t… Show more
“…Undisturbed vegetation composition in our simulations is remarkably resilient against climate change, which also corresponds to recent observations (Kim et al (2024); Sulla-Menashe et al ( 2018)). The same is not true of AGC, which is strongly diminished by disturbances.…”
Section: Vegetation Compositionsupporting
confidence: 92%
“…The values we used were not derived specifically for the boreal forest, and it is possible that they underestimated the difference in albedo between vegetation types. Indeed, some studies report albedos of 0.6 -0.8 in early-successional and/ or broadleaf summergreen forest stands (Kim et al (2024); Zhang et al (2018); Rogers et al (2013)). Such values would be unattainable with our approach.…”
Section: Land Surface Properties and Potential Climate Feedbacksmentioning
“…Undisturbed vegetation composition in our simulations is remarkably resilient against climate change, which also corresponds to recent observations (Kim et al (2024); Sulla-Menashe et al ( 2018)). The same is not true of AGC, which is strongly diminished by disturbances.…”
Section: Vegetation Compositionsupporting
confidence: 92%
“…The values we used were not derived specifically for the boreal forest, and it is possible that they underestimated the difference in albedo between vegetation types. Indeed, some studies report albedos of 0.6 -0.8 in early-successional and/ or broadleaf summergreen forest stands (Kim et al (2024); Zhang et al (2018); Rogers et al (2013)). Such values would be unattainable with our approach.…”
Section: Land Surface Properties and Potential Climate Feedbacksmentioning
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