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Larch Forests of Middle Siberia: Long-Term Trends in Fire Return IntervalsFire history within the northern larch forests of Central Siberia was studied (65+degN). Fires within this area are predominantly caused by lightning strikes rather than human activity. Mean fire return intervals (FRIs) were found to be 112 +/- 49 years (based on firescars) and 106 +/- 36 years (based on firescars and tree natality dates). FRIs were increased with latitude increase and observed to be about 80 years at 64N, about 200 years near the Arctic Circle and about 300 years nearby the northern range limit of larch stands (approx.71+degN). Northward FRIs increase correlated with incoming solar radiation (r = -0.95). Post- Little Ice Age (LIA) warming (after 1850) caused approximately a doubling of fire events (in comparison with a similar period during LIA). The data obtained support a hypothesis of climate-induced fire frequency increase. Keywords Fire ecology Fire history Fire frequency Siberian wildfires Larch forests Climate change
Document ID
20160005122
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Kharuk, Viacheslav I.
(Universities Space Research Association Greenbelt, MD, United States)
Dvinskaya, Mariya L.
(Kuybyshev (V. V.) State Univ. Tomsk, Russian Federation)
Petrov, Ilya A.
(Kuybyshev (V. V.) State Univ. Tomsk, Russian Federation)
Im, Sergei T.
(Kuybyshev (V. V.) State Univ. Tomsk, Russian Federation)
Ranson, Kenneth J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
April 18, 2016
Publication Date
April 1, 2016
Publication Information
Publication: Regional Enviromental Change
Publisher: Springer
Volume: 16
Issue: 4
ISSN: 1436-3798
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN31359
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
Distribution Limits
Public
Copyright
Other
Keywords
Fire ecology
Larch Forests
Fire History

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