Next Article in Journal
Evaluating Deck Fire Performance—Limitations of the Test Methods Currently Used in California’s Building Codes
Previous Article in Journal
Fire Propagation Characteristics and Fire Risks of Polyurethanes: Effects of Material Type (Foam & Board) and Added Flame Retardant
 
 
Article

Wildfires in the Siberian Arctic

1
Institute of Space and Information Technologies, Institute of Ecology and Geography, Siberian Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia
2
Sukachev Institute of Forest, Krasnoyarsk Science Center of the SB RAS, Academgorodok St. 50/28, 660036 Krasnoyarsk, Russia
3
Institute of Space Research and High Technologies, Reshetnev Siberian State University of Science and Technology, Krasnoyarsky Rabochy Av. 31, 660037 Krasnoyarsk, Russia
4
USDA Forest Service, 271 Mast Road, Durham, NH 03824, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Alistair M. S. Smith
Fire 2022, 5(4), 106; https://doi.org/10.3390/fire5040106
Received: 25 June 2022 / Revised: 18 July 2022 / Accepted: 20 July 2022 / Published: 21 July 2022
Wildfires are increasingly understood as an ecological driver within the entire Arctic biome. Arctic soils naturally store large quantities of C, as peat has formed throughout the Holocene. For the Siberian Arctic, we used observations from the MODIS remote sensing instrument to document changes in frequency, geographic extent, and seasonal timing of wildfires as well as vegetation productivity (GPP, NPP, EVI). We also used correlation and regression analysis to identify environmental factors of temperature, precipitation, and lightning occurrence associated with these changes. For the Siberian Arctic as a whole, we found that the decadal frequency of wildfire tripled from the 2001–2010 to the 2011–2020 periods. Increased decadal frequency was accompanied by the increased extent of the burnt area by a factor of 2.6. This increase in fire frequency and extent was not uniform, with the greatest increase in western Siberia with no marked increase for the Siberian Far East. These changes were accompanied by the northward migration of the northern limit of wildfire occurrence and an increase in duration of the wildfire season. We found that annual fire frequency and the extent of burnt areas were related to various combinations of seasonal air temperature, precipitation, ground moisture, and lightning frequency. After fires, vegetation productivity rapidly recovered to pre-fire levels. The northward spread of wildfire into the tundra will release carbon long-stored as peat. The enhanced vegetation productivity, rapid recovery of carbon fixation for burnt areas and the northward migration of boreal forest tree species may offset that release and maintain the current status of the Siberian Arctic as a C sink. Increased wildfire and loss of permafrost may threaten ongoing settlement and industrialization, particularly for western Siberia. View Full-Text
Keywords: Arctic fires; northward fire migration; lightning fire ignition; heat waves; Arctic vegetation productivity; wildfire recovery Arctic fires; northward fire migration; lightning fire ignition; heat waves; Arctic vegetation productivity; wildfire recovery
Show Figures

Figure 1

MDPI and ACS Style

Kharuk, V.I.; Dvinskaya, M.L.; Im, S.T.; Golyukov, A.S.; Smith, K.T. Wildfires in the Siberian Arctic. Fire 2022, 5, 106. https://doi.org/10.3390/fire5040106

AMA Style

Kharuk VI, Dvinskaya ML, Im ST, Golyukov AS, Smith KT. Wildfires in the Siberian Arctic. Fire. 2022; 5(4):106. https://doi.org/10.3390/fire5040106

Chicago/Turabian Style

Kharuk, Viacheslav I., Maria L. Dvinskaya, Sergei T. Im, Alexei S. Golyukov, and Kevin T. Smith. 2022. "Wildfires in the Siberian Arctic" Fire 5, no. 4: 106. https://doi.org/10.3390/fire5040106

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop