Mixed signals in trends of variance in high-elevation tree ring chronologies

doi:https://doi.org/10.1007/s11629-017-4425-9

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.10

	Mixed signals in trends of variance in high-elevation tree ring chronologies
	George P MALANSON
刊名	Journal of Mountain Science
	2017-10
卷号	14 期号:10 页码:1961-1968
关键词	Climate Change Variance Pinus Albicaulis Pinus Flexilis Rocky Mountains
ISSN号	1672-6316
DOI	https://doi.org/10.1007/s11629-017-4425-9
通讯作者	George P MALANSON
文献子类	期刊论文
英文摘要	Increases in climate variability, including extremes, may be expected with anthropogenic climate change, but some evidence is contrary. The issue is important because the consequences of variability can be critical for ecosystems. It has long been known and often rehearsed that ecological consequences of increased variability may be greater than those that result from expected changes in mean temperature and precipitation. Tree rings have been useful indicators of ecological response to climate change and used as proxies for climate variability; work in the Rocky Mountains, USA, has been particularly informative. Chronologies from two high elevation species ranging over 2500 km were analyzed for changes in variance through time. These spatially extensive and disaggregated tree ring records do not show a consistent pattern of change in variance over the past 500 or 100 years; heteroscedasticity has recently been greater. A lack of consistent response in growth over a period encompassing changes in mean climate indicates that mountain environments, with inconsistent trends in temperature and precipitation, may be too complex to act as sentinels.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/19090]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.10
推荐引用方式 GB/T 7714	George P MALANSON. Mixed signals in trends of variance in high-elevation tree ring chronologies[J]. Journal of Mountain Science,2017,14(10):1961-1968.
APA	George P MALANSON.(2017).Mixed signals in trends of variance in high-elevation tree ring chronologies.Journal of Mountain Science,14(10),1961-1968.
MLA	George P MALANSON."Mixed signals in trends of variance in high-elevation tree ring chronologies".Journal of Mountain Science 14.10(2017):1961-1968.