Increasing Fuel Loads, Fire Hazard, and Carbon Emissions from Fires in Central Siberia
Author:
Kukavskaya Elena A.1ORCID, Shvetsov Evgeny G.1, Buryak Ludmila V.123, Tretyakov Pavel D.1ORCID, Groisman Pavel Ya.4ORCID
Affiliation:
1. V.N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences—Separate Subdivision of the Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok 50/28, 660036 Krasnoyarsk, Russia 2. The Branch of FBU VNIILM “Centre of Forest Pyrology”, Krupskaya 42, 660062 Krasnoyarsk, Russia 3. Institute of Forest Technologies, Reshetnev Siberian State University of Science and Technology, Krasnoyarsky Rabochiy Prospect 31, 660037 Krasnoyarsk, Russia 4. North Carolina State University at NOAA National Center for Environmental Information, Asheville, NC 28801, USA
Abstract
The vast Angara region, with an area of 13.8 million ha, is located in the southern taiga of central Siberia, Russia. This is one of the most disturbed regions by both fire and logging in northern Asia. We have developed surface and ground fuel-load maps by integrating satellite and ground-based data with respect to the forest-growing conditions and the disturbance of the territory by anthropogenic and natural factors (fires and logging). We found that from 2001 to 2020, fuel loads increased by 8% in the study region, mainly due to a large amount of down woody debris at clearcuts and burned sites. The expansion of the disturbed areas in the Angara region resulted in an increase in natural fire hazards in spring and summer. Annual carbon emissions from fires varied from 0.06 to 6.18 Mt, with summer emissions accounting for more than 95% in extreme fire years and 31–68% in the years of low fire activity. While the trend in the increase in annual carbon emissions from fires is not statistically significant due to its high interannual variability and a large disturbance of the study area, there are significantly increasing trends in mean carbon emissions from fires per unit area (p < 0.005) and decadal means (p < 0.1). In addition, we found significant trends in the increase in emissions released by severe fires (p < 0.005) and by fires in wetter, dark, coniferous (spruce, p < 0.005 and Siberian pine, p < 0.025) forests. This indicates deeper burning and loss of legacy carbon that impacts on the carbon cycle resulting in climate feedback.
Funder
RFBR, Government of the Krasnoyarsk Krai, the Krasnoyarsk regional foundation of scientific and scientific-technical support State Assignment NSF Belmont Forum Collaborative Research: Coastal OceAn SusTainability in Changing Climate
Subject
Earth and Planetary Sciences (miscellaneous),Safety Research,Environmental Science (miscellaneous),Safety, Risk, Reliability and Quality,Building and Construction,Forestry
Reference71 articles.
1. Goldammer, J.G., and Furyaev, V.V. (1996). Fire in Ecosystems of Boreal Eurasia, Springer. Available online: https://link.springer.com/book/10.1007/978-94-015-8737-2. 2. Leskinen, P., Lindner, M., Verkerk, P.J., Nabuurs, G.J., Van Brusselen, J., Kulikova, E., Hassegawa, M., and Lerink, B. (2020). Russian Forests and Climate Change. What Science Can Tell Us 11, European Forest Institute. 3. Wildfires in the Siberian taiga;Kharuk;Ambio,2021 4. Masson-Delmotte, V., Zhai, P., Pirani, A., Connors, S.L., Pean, C., Chen, Y., Goldfarb, L., Gomis, M.I., Matthews, J.B.R., and Berger, S. (2021). IPCC 2021: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press. 5. Consideration of anthropogenic factors in boreal forest fire regime changes during rapid socio-economic development: Case study of forestry districts with increasing burnt area in the Sakha Republic, Russia;Kirillina;Environ. Res. Lett.,2020
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