文献类型：期刊文献

英文题名：A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests

作者：Allen, Craig D.[1] Macalady, Alison K.[2] Chenchouni, Haroun[3] Bachelet, Dominique[4] McDowell, Nate[5] Vennetier, Michel[6] Kitzberger, Thomas[7] Rigling, Andreas[8] Breshears, David D.[9] Hogg, E.H. [Ted][10] Gonzalez, Patrick[11] Fensham, Rod[12] Zhang, Zhen[13] Castro, Jorge[14] Demidova, Natalia[15] Lim, Jong-Hwan[16] Allard, Gillian[17] Running, Steven W.[18] Semerci, Akkin[19] Cobb, Neil[20]

第一作者：Allen, Craig D.

通信作者：Allen, C.D.

机构：[1] U.S. Geological Survey, Fort Collins Science Center, Jemez Mountains Field Station, Los Alamos, NM 87544, United States; [2] School of Geography and Development, Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States; [3] Department of Biology, University of Batna, 05000 Batna, Algeria; [4] Department of Biological and Ecological Engineering, Oregon State University, Corvalllis, OR 97330, United States; [5] Earth and Environmental Sciences, Los Alamos National Laboratory, MS J495, Los Alamos, NM 87544, United States; [6] CEMAGREF, ECCOREV FR 3098, Aix-Marseille University, Aix-en-Provence, France; [7] Laboratorio Ecotono, INIBIOMA-CONICET, Univ. Nacional del Comahue, Quintral 1250, 8400 Bariloche, Argentina; [8] Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zurcherstr. 111, CH-8903 Birmensdorf, Switzerland; [9] School of Natural Resources and the Environment, Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, United States; [10] Northern Forestry Centre, Canadian Forest Service, 5320-122 Street, Edmonton, Alta. T6H 3S5, Canada; [11] Center for Forestry, University of California, Berkeley, CA 94720, United States; [12] Queensland Herbarium, Environmental Protection Agency, Mt Coot-tha Road, Toowong, QLD 4066, Australia; [13] Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Protection of State Forestry Administration, Beijing, 100091, China; [14] Grupo de Ecología Terrestre, Departamento de Ecología, Universidad de Granada, Granada, E-18071, Spain; [15] Northern Research Institute of Forestry, Nikitov St., 13, Arkhangelsk, 163062, Russia; [16] Division of Forest Ecology, Department of Forest Conservation, Korea Forest Research Institute, #57, Hoegi-ro, Dongdaemun-gu, Seoul 130-712, Korea, Republic of; [17] Forestry Department, Food and Agriculture Organization [FAO], Viale delle Terme di Caracalla, 00100 Rome, Italy; [18] Numerical Terradynamics Simulation Group, University of Montana, Missoula, MT 59812, United States; [19] Central Anatolia Forestry Research Institute, P.K. 24, 06501 Bahcelievler, Ankara, Turkey; [20] Department of Biological Sciences, Merriam Powell Center for Environmental Research, Northern Arizona University, Flagstaff, AZ 86011, United States

年份：2010

卷号：259

期号：4

起止页码：660-684

外文期刊名：Forest Ecology and Management

收录：EI(收录号：20100212623613)

语种：英文

外文关键词：Climate models - Drought - Ecosystems - Forestry - Gas emissions - Greenhouse gases - Thermal stress

摘要：Greenhouse gas emissions have significantly altered global climate, and will continue to do so in the future. Increases in the frequency, duration, and/or severity of drought and heat stress associated with climate change could fundamentally alter the composition, structure, and biogeography of forests in many regions. Of particular concern are potential increases in tree mortality associated with climate-induced physiological stress and interactions with other climate-mediated processes such as insect outbreaks and wildfire. Despite this risk, existing projections of tree mortality are based on models that lack functionally realistic mortality mechanisms, and there has been no attempt to track observations of climate-driven tree mortality globally. Here we present the first global assessment of recent tree mortality attributed to drought and heat stress. Although episodic mortality occurs in the absence of climate change, studies compiled here suggest that at least some of the world's forested ecosystems already may be responding to climate change and raise concern that forests may become increasingly vulnerable to higher background tree mortality rates and die-off in response to future warming and drought, even in environments that are not normally considered water-limited. This further suggests risks to ecosystem services, including the loss of sequestered forest carbon and associated atmospheric feedbacks. Our review also identifies key information gaps and scientific uncertainties that currently hinder our ability to predict tree mortality in response to climate change and emphasizes the need for a globally coordinated observation system. Overall, our review reveals the potential for amplified tree mortality due to drought and heat in forests worldwide.