干旱区生态环境知识资源中心(Arid): The variable climate response of Rocky Mountain bristlecone pine (Pinus aristata Engelm.)

Arid

DOI	10.1016/j.dendro.2021.125846
	The variable climate response of Rocky Mountain bristlecone pine (Pinus aristata Engelm.)
	Tintor, William Lazar; Woodhouse, Connie A.
通讯作者	Tintor, WL (corresponding author), Univ Arizona, Sch Geog Dev & Environm, Tucson, AZ 85721 USA.
来源期刊	DENDROCHRONOLOGIA
ISSN	1125-7865
EISSN	1612-0051
出版年	2021
卷号	68
英文摘要	Recent increases in temperature over the semi-arid western United States have been shown to exacerbate drought, reducing streamflow, and increasing stress on ecosystems. Our understanding of the role temperature played during drought in the more distant past is far from complete. While numerous tree-ring proxy records of moisture provide evidence for past extreme droughts in this region, few contemporaneous tree-ring proxy records of temperatures exist. This limits our ability to evaluate the variable influence of temperature on drought over past centuries and to contextualize the present interplay of moisture and temperature during more recent drought events. It is also important to understand the complexity of climatic interactions that produced drought under natural variability prior to evaluating the potential impacts of future climate change. In response to this knowledge gap, we undertook the first extensive evaluation of climate sensitivity in Rocky Mountain bristlecone pine (Pinus aristata Engelm.), focusing on the potential for developing new multi-century proxy records of both temperature and precipitation. We isolated dominant patterns of growth variability among trees from ten ringwidth datasets across the Southern Rocky Mountains of Colorado and New Mexico and assessed their response to climate. We utilized both an empirical orthogonal function (EOF) analysis and a modified form of hierarchical cluster analysis to produce time series representing growth patterns in P. aristata. The results indicate a widespread June drought stress signal with a high potential for multi-millennial reconstruction. We also found a positive minimum temperature response during late summer, evident only at lower frequency and co-occurring at locations with the June drought stress signal. The potential for temperature reconstruction will require further investigation into the physiological linkages between P. aristata and climate variability. The presence of multiple climate responses within P. aristata sampling sites highlights the need for particular care when including P. aristata in regional climate reconstructions.
英文关键词	Rocky Mountains Tree growth Climate response Temperature sensitivity Pinus aristata
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000679294500001
WOS关键词	WESTERN NORTH-AMERICA ; GREAT-BASIN ; TREE-RINGS ; RIO-GRANDE ; TEMPERATURE-VARIATIONS ; AIR-TEMPERATURE ; PRECIPITATION ; COLORADO ; VARIABILITY ; DENDROCHRONOLOGY
WOS类目	Forestry ; Geography, Physical
WOS研究方向	Forestry ; Physical Geography
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368587
作者单位	[Tintor, William Lazar; Woodhouse, Connie A.] Univ Arizona, Sch Geog Dev & Environm, Tucson, AZ 85721 USA; [Tintor, William Lazar; Woodhouse, Connie A.] Univ Arizona, Lab Tree Ring Res, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Tintor, William Lazar,Woodhouse, Connie A.. The variable climate response of Rocky Mountain bristlecone pine (Pinus aristata Engelm.)[J]. University of Arizona,2021,68.
APA	Tintor, William Lazar,&Woodhouse, Connie A..(2021).The variable climate response of Rocky Mountain bristlecone pine (Pinus aristata Engelm.).DENDROCHRONOLOGIA,68.
MLA	Tintor, William Lazar,et al."The variable climate response of Rocky Mountain bristlecone pine (Pinus aristata Engelm.)".DENDROCHRONOLOGIA 68(2021).