globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13177
论文题名:
An ecoclimatic framework for evaluating the resilience of vegetation to water deficit
作者: Mitchell P.J.; O'Grady A.P.; Pinkard E.A.; Brodribb T.J.; Arndt S.K.; Blackman C.J.; Duursma R.A.; Fensham R.J.; Hilbert D.W.; Nitschke C.R.; Norris J.; Roxburgh S.H.; Ruthrof K.X.; Tissue D.T.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期:5
起始页码: 1677
结束页码: 1689
语种: 英语
英文关键词: Climate vulnerability ; Climatic thresholds ; Drought mortality ; Drought resistance ; Forest ecosystems ; Plant hydraulics ; Recruitment ; Resilience ; Tree die-off
Scopus关键词: climate change ; climate effect ; drought ; forest dynamics ; forest ecosystem ; global warming ; recruitment (population dynamics) ; Eucalyptus globulus ; Eucalyptus globulus ; Pinus edulis ; Pinus edulis ; climate change ; drought ; Eucalyptus ; forest ; physiology ; pine ; tree ; Climate Change ; Droughts ; Eucalyptus ; Forests ; Pinus ; Trees
英文摘要: The surge in global efforts to understand the causes and consequences of drought on forest ecosystems has tended to focus on specific impacts such as mortality. We propose an ecoclimatic framework that takes a broader view of the ecological relevance of water deficits, linking elements of exposure and resilience to cumulative impacts on a range of ecosystem processes. This ecoclimatic framework is underpinned by two hypotheses: (i) exposure to water deficit can be represented probabilistically and used to estimate exposure thresholds across different vegetation types or ecosystems; and (ii) the cumulative impact of a series of water deficit events is defined by attributes governing the resistance and recovery of the affected processes. We present case studies comprising Pinus edulis and Eucalyptus globulus, tree species with contrasting ecological strategies, which demonstrate how links between exposure and resilience can be examined within our proposed framework. These examples reveal how climatic thresholds can be defined along a continuum of vegetation functional responses to water deficit regimes. The strength of this framework lies in identifying climatic thresholds on vegetation function in the absence of more complete mechanistic understanding, thereby guiding the formulation, application and benchmarking of more detailed modelling. © 2016 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61401
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作者单位: CSIRO Land and Water, 15 College Rd, Sandy Bay, TAS, Australia; School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, Australia; School of Ecosystem and Forest Sciences, The University of Melbourne, 500 Yarra Boulevard, Richmond, VIC, Australia; Hawkesbury Institute for the Environment, Western Sydney University, Science Rd, Richmond, NSW, Australia; Queensland Herbarium, Environmental Protection Agency, Mount Coot-tha Road, Toowong, QLD, Australia; School of Biological Sciences, University of Queensland, Chancellors Pl., St Lucia, QLD, Australia; CSIRO Ecosystem Sciences, Tropical Forest Research Centre, Atherton, QLD, Australia; Department of Environment, Land, Water and Planning, Victorian Government, Melbourne, VIC, Australia; CSIRO Land and Water, Clunies Ross St, Black Mountain, ACT, Australia; Centre of Excellence for Climate Change, Woodland and Forest Health, School of Veterinary and Life Sciences Murdoch University, 90 South St, Murdoch, WA, Australia

Recommended Citation:
Mitchell P.J.,O'Grady A.P.,Pinkard E.A.,et al. An ecoclimatic framework for evaluating the resilience of vegetation to water deficit[J]. Global Change Biology,2016-01-01,22(5)
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