Аннотация: We use a mechanistic model of tree-ring formation to simulate regional patterns of climate-tree growth relationships in the southeastern United States. Modeled chronologies are consistent with actual tree-ring data, demonstrating that our simulations have skill in reproducing broad-scale patterns of the proxy's response to climate variability. The model predicts that a decrease in summer precipitation, associated with a weakening Bermuda High, has become an additional control on tree ring growth during recent decades. A nonlinear response of tree growth to climate variability has implications for the calibration of tree-ring records for paleoclimate reconstructions and the prediction of ecosystem responses to climate change.
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Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA
Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
Univ Tennessee, Dept Geog, Knoxville, TN 37996 USA
Russian Acad Sci, Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Anchukaitis, K.J.; Evans, M.N.; Kaplan, A...; Vaganov, E.A.; Hughes, M.K.; Grissino-Mayer, H.D.; Cane, M.A.