[Relationships between Sabina przewalskii radial growth and climatic factors at upper timberlines in eastern mountainous region of Qaidam Basin].
Based on the investigation data of Sabina przewalskii tree-ring width at six sites at upper timberlines in eastern mountainous region of Qaidam Basin, the standard tree-ring chronologies of S. przewalskii were established. Cluster analysis indicated that there existed geographical differences in the radial growth of S. przewalskii among the sites. Higher similarity was observed between two northern sites, and among four central and southern sites. Climatic factors had different effects on the radial growth of S. przewalskii of the two clusters. The radial growth of S. przewalskii was positively correlated with the precipitation in current year's June at northern sites, and with the air temperature in previous year's November and current year's July at central and southern sites.
Zheng
Yong-hong
YH
Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. zhengyonghong201@sohu.com
Zhu
Hai-feng
HF
Zhang
Yong-xiang
YX
Shao
Xue-mei
XM
D002681:China; D002980:Climate; D029779:Cupressaceae / Q000254:growth & development* / Q000502:physiology*; D005843:Geography; D018547:Plant Stems / Q000033:anatomy & histology / Q000254:growth & development*