Response of stem radial growth of Qinghai spruce (Picea crassifolia) to environmental factors in the Qilian Mountains of China

doi:10.1016/j.dendro.2017.04.001

	Response of stem radial growth of Qinghai spruce (Picea crassifolia) to environmental factors in the Qilian Mountains of China
	Tian, Quanyan 1,4; He, Zhibin 1; Xiao, Shengchun 2; Peng, Xiaomei 3; Ding, Aijun 2,4; Lin, Pengfei 1,4
刊名	DENDROCHRONOLOGIA
	2017-06-01
卷号	44 页码:76-83
关键词	Qinghai spruce Dendrometer Stem radial change Climate-growth relationship Qilian Mountains
ISSN号	1125-7865
DOI	10.1016/j.dendro.2017.04.001
通讯作者	He, Zhibin(hzbmail@lzb.ac.cn)
英文摘要	Exploring the response of intra-annual tree growth to environmental factors is critical for the understanding of the effects of climate changes on tree seasonal growth patterns. We monitored stem radial changes of Qinghai spruce (Picea crassifolia) over two growing seasons (2014 and 2015) in the Qilian Mountains of China using high-resolution point dendrometers. Our results showed that the onset of the main growth period occurred around 11 May. Soil temperature was a key environmental factor influencing the onset of tree growth. Stem radial growth commenced when soil temperature at 40 cm depth was > 0 degrees C. The timing of radial growth cessation exhibited greater variability than onset, ranging from late July to early August, and was probably unrelated to climatic conditions. We found close relationships between maximum daily shrinkage (MDS) and air temperature, precipitation, soil water content, and soil temperature. Maximum and mean air temperature, relative air humidity, vapor pressure deficit, and precipitation had significant effects on daily stem radial increment (SRI). Precipitation was one of the most important factors influencing stem radial growth. Moreover, the number of precipitation days was more significant in promoting cumulative seasonal growth of Qinghai spruce than total precipitation. With climate warming, the onset of radial growth may occur earlier than before, and seasonal growth patterns of trees may change.
资助项目	National Natural Science Foundation of China[41522102] ; National Natural Science Foundation of China[41601051]
WOS关键词	HEIHE RIVER-BASIN ; ARID NORTHWESTERN CHINA ; BALSAM FIR ; SAP FLOW ; HYDROCLIMATIC FACTORS ; SOUTHERN CHILE ; SOIL-MOISTURE ; LOWER REACHES ; BLACK SPRUCE ; TREE-RINGS
WOS研究方向	Plant Sciences ; Forestry ; Physical Geography
语种	英语
出版者	ELSEVIER GMBH, URBAN & FISCHER VERLAG
WOS记录号	WOS:000415944500010
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/56723]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Zhibin
作者单位	1.Chinese Acad Sci, Linze Inland River Basin Res Stn, Key Lab Ecohydrol Inland River Basin, Chinese Ecosyst Res Network,Northwest Inst Ecoenv, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tian, Quanyan,He, Zhibin,Xiao, Shengchun,et al. Response of stem radial growth of Qinghai spruce (Picea crassifolia) to environmental factors in the Qilian Mountains of China[J]. DENDROCHRONOLOGIA,2017,44:76-83.
APA	Tian, Quanyan,He, Zhibin,Xiao, Shengchun,Peng, Xiaomei,Ding, Aijun,&Lin, Pengfei.(2017).Response of stem radial growth of Qinghai spruce (Picea crassifolia) to environmental factors in the Qilian Mountains of China.DENDROCHRONOLOGIA,44,76-83.
MLA	Tian, Quanyan,et al."Response of stem radial growth of Qinghai spruce (Picea crassifolia) to environmental factors in the Qilian Mountains of China".DENDROCHRONOLOGIA 44(2017):76-83.