Wildfires in the Siberian Arctic

نویسندگان

چکیده

Wildfires are increasingly understood as an ecological driver within the entire Arctic biome. soils naturally store large quantities of C, peat has formed throughout Holocene. For Siberian Arctic, we used observations from MODIS remote sensing instrument to document changes in frequency, geographic extent, and seasonal timing wildfires well vegetation productivity (GPP, NPP, EVI). We also correlation regression analysis identify environmental factors temperature, precipitation, lightning occurrence associated with these changes. a whole, found that decadal frequency wildfire tripled 2001–2010 2011–2020 periods. Increased was accompanied by increased extent burnt area factor 2.6. This increase fire not uniform, greatest western Siberia no marked for Far East. These were northward migration northern limit duration season. annual areas related various combinations air ground moisture, frequency. After fires, rapidly recovered pre-fire levels. The spread into tundra will release carbon long-stored peat. enhanced productivity, rapid recovery fixation boreal forest tree species may offset maintain current status C sink. loss permafrost threaten ongoing settlement industrialization, particularly Siberia.

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ژورنال

عنوان ژورنال: Fire

سال: 2022

ISSN: ['2571-6255']

DOI: https://doi.org/10.3390/fire5040106