DOI: 10.1016/j.foreco.2015.02.019
Scopus记录号: 2-s2.0-84924692025
论文题名: Species mixture increases the effect of drought on tree ring density, but not on ring width, in Quercus petraea-Pinus sylvestris stands
作者: Toïgo M. ; Vallet P. ; Tuilleras V. ; Lebourgeois F. ; Rozenberg P. ; Perret S. ; Courbaud B. ; Perot T.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 345 起始页码: 73
结束页码: 82
语种: 英语
英文关键词: Diversity
; Mean ring density
; Mixed forests
; Ring width
; Soil water deficit
; Stability
Scopus关键词: Climate change
; Climate models
; Climatology
; Convergence of numerical methods
; Drought
; Mixtures
; Plants (botany)
; Soil moisture
; Water resources
; Diversity
; Mixed forests
; Ring density
; Ring width
; Soil water deficit
; Forestry
; climate change
; coniferous tree
; deciduous tree
; dendroclimatology
; drought
; forest management
; mixed forest
; seasonality
; soil water potential
; tree ring
; Drought
; Forestry
; Pinus Sylvestris
; Productivity
; Quercus Petraea
; Seasonal Variation
; Species Identification
; Pinus sylvestris
; Quercus petraea
英文摘要: Mixing species has been proposed as a forest management option to mitigate the effects of the increase in summer drought episodes predicted by climate change models in temperate zones. Studying how the relationship between tree rings and summer drought episodes is modified by species mixture is of primary importance in this context. Based on a dendroclimatology study, we (i) qualified and quantified the relationship between ring width (RW) or mean ring density (MRD) and soil water deficit (SWD) in a ring-porous species, Quercus petraea, and a coniferous species, Pinus sylvestris, and (ii) determined if the relationships between tree ring characteristics and SWD are modified in mixtures. We found inter-specific differences in RW patterns depending on the seasonality of the drought periods: RW in Q. petraea responded mainly to SWD from May to July, and RW in P. sylvestris to SWD from May to September. The ring-width of both species was strongly reduced by SWD; however, inter-specific differences in response to SWD seasonality triggered RW variations of opposite directions between the two species, for several years. In contrast, MRD for both species was dependent on the SWD from June to July. MRD in Q. petraea increased slightly with SWD whereas MRD in P. sylvestris decreased strongly with SWD. The relationship between RW and SWD was not modified in mixtures compared to pure stands. We found that the effect of SWD on MRD was stronger in mixtures. The impact of SWD on species may be worsened in mixtures, but mixture of species with different growth sensitivities to the seasonality of the drought periods and to the drought intensity might help to buffer the effects of climatic fluctuations on the overall mixed stands productivity compared to pure stands. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65481
Appears in Collections: 影响、适应和脆弱性
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作者单位: Irstea, UR EFNO Ecosystèmes Forestiers, Nogent-sur-Vernisson, France; AgroParisTech, UMR1092, Laboratoire d'Étude des Ressources Forêt Bois (LERFoB), Centre de Nancy, 14 rue Girardet, Nancy, France; INRA Orléans, Unité Amélioration Génétique et Physiologie Forestières, CS 40001 ARDON, 2163 Avenue de la Pomme de Pin, Orléans Cedex 2, France; Irstea, UR EMGR Ecosystèmes Montagnards, Centre de Grenoble, St Martin d'Hères, France
Recommended Citation:
Toïgo M.,Vallet P.,Tuilleras V.,et al. Species mixture increases the effect of drought on tree ring density, but not on ring width, in Quercus petraea-Pinus sylvestris stands[J]. Forest Ecology and Management,2015-01-01,345