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- Title
Response of regional tree-line forests to climate change: evidence from the northeastern Tibetan Plateau.
- Authors
Xiaohua Gou; Fahu Chen; Jianfeng Peng; Rosanne D’Arrigo; William Wright
- Abstract
Abstract Tree-ring width and age structure of Juniperus przewalskii (Qilian juniper) forests were analyzed for four tree-line sites in Qilian and Anyemaqen Mountains, northeastern Tibetan Plateau, to investigate their relationships to climate change. Tree-line growth on Qilian Mountain was mainly limited by temperature at the low-frequency band. However, tree-line growth in the Anyemaqen Mountain was highly correlated with the current growing season temperature at the high-frequency band, and with the previous growing season precipitation at the low-frequency band. A temperature-stressed growth pattern at colder western sites and a moisture-stressed growth pattern at the warm, drier eastern tree-line sites were detected. The number of surviving trees in the tree-line ecotone was not clearly correlated with temperature before the 1900s. An unprecedented rise in the number of trees coincided well with the rapid global warming after the 1900s.
- Subjects
TIBETAN Plateau; CHINA; FOREST genetics; CLIMATE change; TEMPERATURE effect; TIMBERLINE; GLOBAL warming
- Publication
Trees: Structure & Function, 2009, Vol 23, Issue 6, p1321
- ISSN
0931-1890
- Publication type
Article