干旱区生态环境知识资源中心(Arid): Spruce trees have stronger drought sensitivity at low- than high-elevation sites across China ' s aridity zones

Arid

DOI	10.1016/j.gecco.2024.e03000
	Spruce trees have stronger drought sensitivity at low- than high-elevation sites across China ' s aridity zones
	Xu, Guobao; Chen, Tuo; Liu, Xiaohong; Wen, Tao; Wang, Wenzhi; Wang, Xiaochun; Yao, Qichao; Wu, Guoju; Zhao, Changming
通讯作者	Xu, GB
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2024
卷号	53
英文摘要	The ecological relationships between tree growth and climate factors are important for the adaptation, growth prediction, and forest management of tree species against a background of global warming. Yet how these relationships for drought-sensitive conifer trees are changed and affected by elevation remains unclear. To investigate the effect of elevation on spruce tree growth -climate interactions, we collected a total of 1886 tree-ring cores (two cores per tree) from four spruce species, including Picea crassifolia Kom., Picea meyeri Rehd. et Wils., Picea schrenkiana Fisch. et Mey., and Picea wilsonii Mast., in 10 pure forests at a pair of highand low-elevation alpine sites with the same slope across two aridity zones in China. We then constructed 20 stand tree-ring chronologies for the low- and high -elevation sites. Overall, the growth of spruce trees was more sensitive to drought variability at sites in the semi -arid zone whereas it was weakly limited by drought in the semi -humid zone. Further, spruce trees growing at highelevation sites were sensitive to temperature unlike the stronger positive drought responses of those at low-elevation sites. In the latter half of the 20th century, the positive drought -growth relationships of spruce were enhanced at both high and low elevation across both aridity zones due to warming and increased drought intensity. Our dendrochronology-based findings suggest that spruce trees ' radial growth in stands at high elevation may have faced drought stress during three recent decades. Nevertheless, the low-elevation trees incurred stronger drought stress compared to the first half of the 20th century.
英文关键词	Climate response Drought-growth relationship Elevation dependence Spruce Tree rings
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001249280900001
WOS关键词	PICEA-CRASSIFOLIA ; QILIAN MOUNTAINS ; GROWTH-RESPONSES ; RING GROWTH ; CLIMATE ; TEMPERATURE ; GRADIENTS ; MORTALITY ; DURATION ; TRENDS
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403994
推荐引用方式 GB/T 7714	Xu, Guobao,Chen, Tuo,Liu, Xiaohong,et al. Spruce trees have stronger drought sensitivity at low- than high-elevation sites across China ' s aridity zones[J],2024,53.
APA	Xu, Guobao.,Chen, Tuo.,Liu, Xiaohong.,Wen, Tao.,Wang, Wenzhi.,...&Zhao, Changming.(2024).Spruce trees have stronger drought sensitivity at low- than high-elevation sites across China ' s aridity zones.GLOBAL ECOLOGY AND CONSERVATION,53.
MLA	Xu, Guobao,et al."Spruce trees have stronger drought sensitivity at low- than high-elevation sites across China ' s aridity zones".GLOBAL ECOLOGY AND CONSERVATION 53(2024).