Skip to Main Content
A latitudinal gradient in tree growth response to climate warming in the Siberian taigaAuthor(s): Andrea H. Lloyd; Andrew G. Bunn; Logan Berner
Source: Global Change Biology. 17(5): 1935-1945
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
View PDF (1.83 MB)
DescriptionWe investigated the climate response of three Siberian taiga species, Larix cajanderi, Picea obovata, and Pinus sylvestris, across a latitudinal gradient in central Siberia. We hypothesized that warming is more frequently associated with increased growth for evergreen conifers (P. obovata and P. sylvestris) than for L. cajanderi, and for northern than for southern sites; we also hypothesized that increased growth is associated with a positive trend in normalized difference vegetation index (NDVI). In mixed stands, growth of L. cajanderi and P. obovata increased over time, but the larger growth increases in P. obovata may presage a shift in competitive balance between these species. Climate response varied among and within populations of all species, and positive responses to temperature prevailed at northern sites, where trees grew faster in years with warm early summers. Negative responses to warming declined along the south to north latitudinal gradient. We observed considerable variability in climate response within populations which even exceeded that among species or sites. Tree response to climate was correlated with NDVI trends, indicating that patterns of tree-growth response to climate were indicative of a coherent landscape-scale response to warming. Our findings suggest that increased productivity with warming is likely only in the northern reaches of the Siberian taiga. An increased prevalence of evergreen conifers in areas currently dominated by deciduous Larix species also seems likely.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLloyd, Andrea H.; Bunn, Andrew G.; Berner, Logan. 2010. A latitudinal gradient in tree growth response to climate warming in the Siberian taiga. Global Change Biology. 17(5): 1935-1945.
Keywordsboreal forest, climate change, dark taiga, dendrochronology, light taiga, NDVI, taiga
- Field survey of growth and colonization of nonnative trees on mainland Alaska.
- Conifer defenses and xylophagous insects
- Mapped DNA probes from Ioblolly pine can be used for restriction fragment length polymorphism mapping in other conifers
XML: View XML