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	Qinghai spruce (Picea crassifolia) growth-climate response between lower and upper elevation gradient limits: a case study along a consistent slope in the mid-Qilian Mountains region
	Wang, Bo1,2; Chen, Tuo1; Wu, Guoju1,2; Xu, Guobao1; Zhang, Youfu3; Gao, Haining4; Zhang, Yong4; Feng, Qi5
刊名	ENVIRONMENTAL EARTH SCIENCES
	2016-02-01
卷号	75期号:3页码:16
关键词	Tree-ring Altitude Qinghai spruce A consistent slope The Qilian Mountains
ISSN号	1866-6280
DOI	10.1007/s12665-015-4930-5
通讯作者	Chen, Tuo(chentuo@lzb.ac.cn)
英文摘要	Tree-ring width chronologies are important records of climate change. Mounting evidence suggests that tree-ring climate response is elevation dependent. In this study, even-aged Qinghai spruce (Picea crassifolia Kom.) chronologies from six sites along a consistent slope in the Qilian Mountains region were selected to investigate altitudinal variability of growth-climate response. Results showed that growth-climate response of this species at different elevations was limited by identical factors. In the Qilian Mountains, P. crassifolia tree-ring growth was limited primarily by drought conditions which are determined by precipitation and temperature in the Qilian Mountains along the entire elevation gradient, exhibiting a positive correlation with PDSI in growth season, a positive correlation with precipitation in May and a negative correlation with the maximum temperature in June. Moreover, P. crassifolia recruitment dynamics coincided well with the temperature variations, suggesting that recruitment rates at different elevations were all primarily influenced by temperature. What was noteworthy was that the great decrease in the mean sensitivity and standard deviation of chronologies directly indicated that P. crassifolia climate-growth response weakened at higher elevations. Furthermore, tree-ring-climate correlation coefficients, and spatial correlation fields of tree-ring width indices to regional climate factors also significantly decreased at higher elevations, indicating that P. crassifolia climate-growth response at higher elevations was weaker than that at lower elevations. Additionally, response of P. crassifolia recruitment dynamics to changes in temperature decreased with increasing elevation, confirming results from chronology and response analyses that showed that P. crassifolia climate-growth response weakened at higher elevations.
收录类别	SCI
WOS关键词	DROUGHT SEVERITY INDEX ; TREE-RING ; TIBETAN PLATEAU ; ALTITUDINAL GRADIENT ; NORTHWESTERN CHINA ; RADIAL GROWTH ; AGE ; TEMPERATURE ; VARIABILITY ; DYNAMICS
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000370241400058
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557419
专题	寒区旱区环境与工程研究所
通讯作者	Chen, Tuo
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Donggang West Rd 320, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Henan Univ Sci & Technol, Luoyang 471003, Peoples R China 4.Hexi Univ, Zhangye 734000, Peoples R China 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Inland River Ecohydrol, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bo,Chen, Tuo,Wu, Guoju,et al. Qinghai spruce (Picea crassifolia) growth-climate response between lower and upper elevation gradient limits: a case study along a consistent slope in the mid-Qilian Mountains region[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(3):16.
APA	Wang, Bo.,Chen, Tuo.,Wu, Guoju.,Xu, Guobao.,Zhang, Youfu.,...&Feng, Qi.(2016).Qinghai spruce (Picea crassifolia) growth-climate response between lower and upper elevation gradient limits: a case study along a consistent slope in the mid-Qilian Mountains region.ENVIRONMENTAL EARTH SCIENCES,75(3),16.
MLA	Wang, Bo,et al."Qinghai spruce (Picea crassifolia) growth-climate response between lower and upper elevation gradient limits: a case study along a consistent slope in the mid-Qilian Mountains region".ENVIRONMENTAL EARTH SCIENCES 75.3(2016):16.

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