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Quantitative analysis of the tree-ring width record features essential for paleoclimatic reconstructions
Authors:Datsenko  N M  Ivashchenko  N N  Sonechkin  D M  Yang  B
Institution:1.Hydrometeorological Center of Russia, Moscow, Russia
;2.Shirshov Institute of Oceanology, Moscow, Russia
;3.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China
;
Abstract:Tree-ring width records provide a primary data source for millennial paleoclimatic reconstructions. However, a problem exists connected with taking into consideration the complex age-dependence within these records. Analyzing a set of very long-lived trees of Sabina przewalskii Kom. from the Dulan area of the northeastern Tibetan Plateau, we found for the first time that the annual basal-radius increment is larger for the outermost rings in comparison with the inner rings, especially for very long-living trees. Neglecting this circumstance when the so-called regional curve standardization is used can distort paleoclimatic reconstructions.
Keywords:
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