Spatial and age-dependent tree-ring growth responses of Larix gmelinii to climate in northeastern China

Autor: Yuandong Zhang, D. J. McRae, Xiaochun Wang
Rok vydání: 2009
Předmět:
Zdroj: Trees. 23:875-885
ISSN: 1432-2285
0931-1890
DOI: 10.1007/s00468-009-0329-9
Popis: Tree-ring width chronologies from 276 Larix gmelinii cores taken in northeastern China were used to analyze spatial and age-dependent growth–climate response relationships. Tree radial growth from five localities showed similar patterns, while exhibiting different tree-ring growth responses to local climate. The rotated principal component analysis (RPCA) indicated that tree age, growing season moisture conditions, and ambient air temperature variations resulted from location differences (e.g., longitude, latitude, and altitude), which could explain the non-stationary spatial climate–growth relations observed. The study tested the fundamental assumption that the climate–growth of L. gmelinii was age independent after the removal of size trends and disturbance signals. The age-related climate–growth relationship might potentially improve the veracity of past climate reconstructions. Bootstrapped correlation function analyses suggested that the response of L. gmelinii radial growth to climate differed between trees ≥150 years old and
Databáze: OpenAIRE
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