Climate-induced larch growth response within the central Siberian permafrost zone

Bibliographic Data

ID15544843
AuthorsViacheslav I Kharuk (0000-0003-4736-0655, Sukachev Institute of Forest, corresponding author), K J Ranson (0000-0003-3806-7270), Sergei T Im (0000-0002-5794-7938, Siberian Federal University), Il’ya A Petrov (0000-0002-6652-9594, Sukachev Institute of Forest)
Year2015
Volume10
Issue12
Pages125009-125009
Publication date2015-12-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueEnvironmental Research Letters (JOURNAL)
Journal identifiersISSN: 1748-9326 • E-ISSN: 1748-9326
PublisherIOP Publishing (PUBLISHER • GB)
DOI10.1088/1748-9326/10/12/125009
OpenAlexW2287295855
LanguageEN
Citations received4
References cited43

Aim: estimation of larch ( Larix gmelinii ) growth response to current climate changes. Location: permafrost area within the northern part of Central Siberia (∼65.8°N, 98.5°E). Method: analysis of dendrochronological data, climate variables, drought index SPEI, GPP (gross primary production) and EVI vegetation index (both Aqua/MODIS satellite derived), and soil water content anomalies (GRACE satellite measurements of equivalent water thickness anomalies, EWTA). Results : larch tree ring width (TRW) correlated with previous year August precipitation ( r = 0.63), snow accumulation ( r = 0.61), soil water anomalies ( r = 0.79), early summer temperatures and water vapor pressure ( r = 0.73 and r = 0.69, respectively), May and June drought index ( r = 0.68–0.82). There are significant positive trends of TRW since late 1980 s and GPP since the year 2000. Mean TRW increased by about 50%, which is similar to post-Little Ice Age warming. TRW correlated with GPP and EVI of larch stands ( r = 0.68–0.69). Main conclusions: within the permafrost zone of central Siberia larch TRW growth is limited by early summer temperatures, available water from snowmelt, water accumulated within soil in the previous year, and permafrost thaw water. Water stress is one of the limiting factors of larch growth. Larch TRW growth and GPP increased during recent decades

Atmospheric sciences · Climate change · Climatology · Ecosystem · Geography · Geomorphology · Hydrology (agriculture · Larch · Larix gmelinii · Meteorology · Permafrost · Physical geography · Precipitation · Primary production · Snow · Snowmelt · Vegetation (pathology · Environmental Science · Geology and Paleoclimatology Research · Plant Water Relations and Carbon Dynamics · Tree-ring climate responses · Ecology · Geology · Oceanography

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