Title: The Effect of Climate Anomalies and Human Ignition Factor on Wildfires in Russian Boreal Forests
Authors: ACHARD FREDERICEVA HUGHMOLLICONE DaniloBEUCHLE RENE'
Citation: PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES vol. 363 p. 2331-2339
Publisher: ROYAL SOCIETY
Publication Year: 2008
JRC Publication N°: JRC34285
ISSN: 0962-8436
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC34285
DOI: 10.1098/rstb.2007.2203
Type: Articles in Journals
Abstract: Over the last few years anomalies in temperature and precipitation in northern Russia have been regarded as manifestations of climate change. During the same period exceptional forest fire seasonshave been reported, prompting many authors to suggest that these in turn are due to climate change. In this paper, we examine the number and areal extent of forest fires across boreal Russia for the period 2002¿2005 within two forest categories: ¿intact forests¿ and ¿non-intact forests¿. Results show a far lower density of fire events in intact forests (5¿14 times less) and that those events tend to be in the first 10 km buffer zone inside intact forest areas. Results also show that, during exceptional climatic years (2002 and 2003), fire event density is twice that found during normal years (2004 and 2005) and average areal extent of fire events (burned area) in intact forests is 2.5 times larger than normal. These results suggest that a majority of the fire events in boreal Russia are of human origin and a maximum of one-third of their impact (areal extension) can be attributed to climate anomalies alone, the rest being due to the combined effect of human disturbances and climate anomalies.
JRC Institute:Institute for Environment and Sustainability

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