干旱区生态环境知识资源中心(Arid): Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & CA Mey in the Tianshan Mountains of Northwestern China

Arid

DOI	10.3390/f11040455
	Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & CA Mey in the Tianshan Mountains of Northwestern China
	Jiao, Liang; Liu, Xiaoping; Wang, Shengjie; Chen, Ke
通讯作者	Jiao, Liang
来源期刊	FORESTS
EISSN	1999-4907
出版年	2020
卷号	11 期号:4
英文摘要	Forest ecosystems are strongly impacted by extreme climate, and the age effects of radial growth under drought can provide profound understanding of the adaptation strategy of a tree species to climate change. Schrenk spruce (Picea schrenkiana Fisch. & C.A. Mey) trees of three age groups (young, middle-aged, and old) were collected to establish the tree-ring width chronologies in the eastern Tianshan Mountains of northwestern China. Meanwhile, we analyzed and compared the response and resistance disparities of radial growth to drought in trees of different age groups. The results showed that (1) drought stress caused by increasing temperatures was the main factor limiting the radial growth of Schrenk spruce, (2) the old and young trees were more susceptible to drought stress than the middle-aged trees, as suggested by the responses of Schrenk spruce trees and based on the SPEI (standardized precipitation evapotranspiration index), and (3) the difference of the resistance indexes (resistance, recovery, resilience, and relative resilience) of three age groups to drought supported that the resistance values were in the order middle age > young age > old age, but the recovery, resilience, and relative resilience values were in the order old age > young age > middle age. These results will provide a basis for the ecological restoration and scientific management of dominant coniferous tree species of different age groups in the sub-alpine forest ecosystems of the arid regions under climate change scenarios.
英文关键词	Picea schrenkiana age effect climate response drought resistance Tianshan Mountains
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000534632500093
WOS关键词	TREE-RING GROWTH ; CLIMATE-CHANGE ; RESPONSES ; PRECIPITATION ; MORTALITY ; SPRUCE ; VULNERABILITY ; TEMPERATURE ; RESILIENCE ; DECLINE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318932
作者单位	Northwest Normal Univ, Coll Geog & Environm Sci, 967 Anning East Rd, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Liang,Liu, Xiaoping,Wang, Shengjie,et al. Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & CA Mey in the Tianshan Mountains of Northwestern China[J],2020,11(4).
APA	Jiao, Liang,Liu, Xiaoping,Wang, Shengjie,&Chen, Ke.(2020).Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & CA Mey in the Tianshan Mountains of Northwestern China.FORESTS,11(4).
MLA	Jiao, Liang,et al."Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & CA Mey in the Tianshan Mountains of Northwestern China".FORESTS 11.4(2020).