Mortality predispositions of conifers across western USA

doi:10.1111/nph.16864

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 > 山地表生过程与生态调控重点实验室

	Mortality predispositions of conifers across western USA
	Wang Wenzhi 4,5; English Nathan B.6; Grossiord Charlotte 3,7; Gessler Arthur 3,8; Das Adrian J.9; Stephenson Nathan L.9; Baisan Christopher H.1; Allen Craig D.2; McDowell Nate G.5
刊名	NEW PHYTOLOGIST
	2020
页码	DOI: 10.1111/nph.16864
关键词	carbon starvation stable carbon and oxygen isotope tree growth tree mortality water-use efficiency western USA conifers
ISSN号	0028-646X
DOI	10.1111/nph.16864
产权排序	2
文献子类	Article; Early Access
英文摘要	Conifer mortality rates are increasing in western North America, but the physiological mechanisms underlying this trend are not well understood. We examined tree-ring-based radial growth along with stable carbon (C) and oxygen (O) isotope composition (delta C-13 and delta O-18, respectively) of dying and surviving conifers at eight old-growth forest sites across a strong moisture gradient in the western USA to retrospectively investigate mortality predispositions. Compared with surviving trees, lower growth of dying trees was detected at least one decade before mortality at seven of the eight sites. Intrinsic water-use efficiency increased over time in both dying and surviving trees, with a weaker increase in dying trees at five of the eight sites. C starvation was a strong correlate of conifer mortality based on a conceptual model incorporating growth,delta C-13, and delta O-18. However, this approach does not capture processes that occur in the final months of survival. Ultimately, C starvation may lead to increased mortality vulnerability, but hydraulic failure or biotic attack may dominate the process during the end stages of mortality in these conifers.
电子版国际标准刊号	1469-8137
语种	英语
WOS记录号	WOS:000568441400001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46291]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Wang Wenzhi
作者单位	1.Fort Collins Science Center, New Mexico Landscapes Field Station, US Geological Survey, Los Alamos, NM 87544, USA; 2.School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA 3.Functional Plant Ecology, Community Ecology Unit, Swiss Federal Institute for Forest, Snow and Landscape WSL, Lausanne, CH-1015, Switzerland; 4.The Key Laboratory of Mountain Environment Evolution and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; 5.Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA; 6.School of Health, Medical and Applied Science, Central Queensland University, Townsville, QLD 4810, Australia; 7.Plant Ecology Research Laboratory PERL, School of Architecture, Civil and Environmental Engineering, EPFL, Lausanne, CH-1015, Switzerland; 6Institute of Terrestrial Ecosystems, ETH Zurich, Universitaetsstrasse 16, Zurich 8092, Switzerland; 8.Western Ecological Research Center, US Geological Survey, Three Rivers, CA 93271, USA; 9.Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, USA;
推荐引用方式 GB/T 7714	Wang Wenzhi,English Nathan B.,Grossiord Charlotte,et al. Mortality predispositions of conifers across western USA[J]. NEW PHYTOLOGIST,2020:DOI: 10.1111/nph.16864.
APA	Wang Wenzhi.,English Nathan B..,Grossiord Charlotte.,Gessler Arthur.,Das Adrian J..,...&McDowell Nate G..(2020).Mortality predispositions of conifers across western USA.NEW PHYTOLOGIST,DOI: 10.1111/nph.16864.
MLA	Wang Wenzhi,et al."Mortality predispositions of conifers across western USA".NEW PHYTOLOGIST (2020):DOI: 10.1111/nph.16864.