DOI: 10.1016/j.foreco.2014.11.032
Scopus记录号: 2-s2.0-84919430133
论文题名: Effects of stand composition and tree size on resistance and resilience to drought in sessile oak and Scots pine
作者: Merlin M. ; Perot T. ; Perret S. ; Korboulewsky N. ; Vallet P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 339 起始页码: 22
结束页码: 33
语种: 英语
英文关键词: Drought
; Resistance
; Scots pine
; Sessile oak
; Stand composition
; Tree size
Scopus关键词: Drought
; Ecosystems
; Electric resistance
; Semiconductor junctions
; Better performance
; Climatic conditions
; Climatic variation
; Pinus sylvestris
; Scots pine
; Sessile oak
; Stand composition
; Tree size
; Forestry
; coniferous forest
; deciduous forest
; drought stress
; ecosystem resilience
; forest ecosystem
; forest management
; forestry production
; Intergovernmental Panel on Climate Change
; sessile species
; spatiotemporal analysis
; stand dynamics
; Drought
; Pinus Sylvestris
; Trees
; Centre [France]
; France
; Loiret
; Orleans Forest
; Pinus sylvestris
; Quercus
; Quercus petraea
英文摘要: The IPCC previsions for the upcoming decades include an increase in frequency and intensity of drought events in several regions worldwide, including Northern Europe. Drought significantly affects forest ecosystems through decreased productivity, increased vulnerability to biotic disturbances and increased subsequent mortality. How forest ecosystems maintain resistance and resilience to drought events are important questions. Our study aimed to assess whether species mixture or an individual tree size within a stand alters a given tree's resilience and resistance to drought. A retrospective study of tree-ring widths allowed us to calculate resistance, resilience and recovery indices for five recent drought events: 1976, the 1990-1992 period, 2003, 2006 and 2010. These drought events were selected based on the SPEI (Standardized Precipitation Evapotranspiration Index) drought index. Our study sample consisted of 108 individual sessile oak (Quercus petraea (Matt.)) or Scots pine (Pinus sylvestris L.) trees sampled in 2012 and 2013 (Orleans forest, central France) in pure and mixed stands, divided into three diameter classes corresponding to three sizes: large, medium and small trees. Scots pine performed better than sessile oak during the 1990-1992 and 2010 droughts while the contrary was observed for the 2003 and 2006 droughts. They performed equally in 1976. We suggest that the differing sensitivity of the two species to spring and summer drought explained this result. In our study, stand composition had no effect on resilience or resistance for either species. The size effect in oaks was unclear as small oaks displayed either a better performance or a worse performance than large oaks. Small pines displayed better resistance and resilience than pines of a larger size. This work stressed the importance of taking into account stand composition and trees size as well as soil and climatic conditions for each drought events to achieve a better understanding of the diversity of responses to climatic variations among forest ecosystems. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65559
Appears in Collections: 影响、适应和脆弱性
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作者单位: Irstea, UR EFNO Ecosystèmes Forestiers, Centre de Nogent-sur-Vernisson, Nogent-sur-Vernisson, France
Recommended Citation:
Merlin M.,Perot T.,Perret S.,et al. Effects of stand composition and tree size on resistance and resilience to drought in sessile oak and Scots pine[J]. Forest Ecology and Management,2015-01-01,339