Picarro | Effects of fire on CO2, CH4, and N2O exchange in a well-drained Arctic heath ecosystem
In the Arctic, the air temperature has increased more than twice the global average during the last few decades and may increase by 2-8°C before 2100. Wildfire frequency and expanse in the Arctic have increased in recent years. It can markedly disturb tundra ecosystems in different ways, including above-and belowground plant biomass destruction and alter soil properties through changes in the availability of soil phosphorus (P), nitrogen (N), and carbon (C). At high latitudes, the frequency and extension of tundra fires are related to climatic conditions, and the increased occurrence of fire events that have been linked to changes toward drier and warmer summers. Approximately half of the global soil C is deposited in the Arctic. Thus, climate change and increased fires in these regions can lead to high amounts of C released into the atmosphere, affecting the global C budget, and leading to positive climate feedback. And some studies found that fires can lead to increased CH4 upta...
2022
-
12
-
28