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Moisture-driven changes in the sensitivity of the radial growth of Picea crassifolia to temperature, northeastern Tibetan Plateau
Song, Wenqi; Mu, Changcheng; Zhang, Yuandong; Zhang, Xu; Li, Zongshan; Zhao, Huiying; Wang, Xiaochun
2020-12
Source PublicationDENDROCHRONOLOGIA
ISSN1125-7865
Volume64Pages:1-10
AbstractPrecipitation is one of the most important climate factors controlling tree growth, yet it is not fully understood how changes in precipitation affect the relationship between growth and temperature. On the northeastern edge of the Tibetan Plateau, nine tree-ring chronologies of Picea crassifolia were developed along a precipitation gradient from semi-arid (mean annual precipitation, 255 mm) to semi-humid (710 mm). We analyze the growth climate relationships along this precipitation gradient and assess whether these associations are regulated by local precipitation. From 1960 to 2014, temperature increased significantly while precipitation remained stable at the nine sampling sites. The radial growth of P. crassifolia decreased at the semi-arid sites but increased at the semi-humid sites. Growth-temperature relationships gradually changed from negative to positive along the precipitation gradient (from dry to wet sites), particularly during summer. The moist P. crassifolia sites are also characterized by positive correlations with the Palmer Drought Severity Index. The temporal growth temperature relationships varied significantly among the different spruce sites over the last five decades. Although temperature remains the main factor controlling the growth of P. crassifolia, local precipitation variability is becoming increasingly important. Our findings indicate that considering species distribution areas supports the analyses of the impact of climate change on tree growth.
Department城市与区域生态国家重点实验室
KeywordClimate change Tree rings Growth-Temperature relationships Precipitation gradient Picea crassifolia Tibetan Plateau
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/44388
Collection城市与区域生态国家重点实验室
Recommended Citation
GB/T 7714
Song, Wenqi,Mu, Changcheng,Zhang, Yuandong,et al. Moisture-driven changes in the sensitivity of the radial growth of Picea crassifolia to temperature, northeastern Tibetan Plateau[J]. DENDROCHRONOLOGIA,2020,64:1-10.
APA Song, Wenqi.,Mu, Changcheng.,Zhang, Yuandong.,Zhang, Xu.,Li, Zongshan.,...&Wang, Xiaochun.(2020).Moisture-driven changes in the sensitivity of the radial growth of Picea crassifolia to temperature, northeastern Tibetan Plateau.DENDROCHRONOLOGIA,64,1-10.
MLA Song, Wenqi,et al."Moisture-driven changes in the sensitivity of the radial growth of Picea crassifolia to temperature, northeastern Tibetan Plateau".DENDROCHRONOLOGIA 64(2020):1-10.
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