DOI: 10.1016/j.foreco.2013.07.034
Scopus记录号: 2-s2.0-84882749914
论文题名: Varying climate sensitivity at the dry distribution edge of Pinus sylvestris and P. nigra
作者: Herrero A. ; Rigling A. ; Zamora R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 308 起始页码: 50
结束页码: 61
语种: 英语
英文关键词: Climate change
; Climate-growth relations
; Dendroecology
; Pinus
; Rear edge populations
; Tree growth variability
Scopus关键词: Climate-growth relations
; Dendroecology
; Pinus
; Rear edges
; Tree growth
; Climate change
; Conservation
; Drought
; Forestry
; Population statistics
; Ecology
; aridity
; climate change
; dendroecology
; drought
; genetic variation
; growth rate
; local adaptation
; persistence
; species conservation
; summer
; temperature effect
; tree
; vulnerability
; Conservation
; Drought
; Ecology
; Forestry
; Pinus
; Mediterranean Sea
; Spain
英文摘要: Rear edge populations, those residing at the low-latitude margins of species ranges, represent a critical genetic diversity for species conservation, management, and evolutionary potential. The present study analyses climate-radial growth relations for Pinus sylvestris and Pinus nigra at their dry distribution limit in the Mediterranean basin. The study was conducted in native relict forests of the two species in SE Spain, analyzing radial growth variability and climate-growth relations over time and between different ecological conditions. The lack of strong precipitation signals found could be due to high tree density, appropriate microclimatic conditions and/or high local adaptation. However, previous September temperatures exerted a negative impact on radial growth at all sites, presumably as a result of a prolonged summer drought. By contrast, high temperatures during winter and spring boosted radial growth at most locations. Both the negative and positive effects of temperature have gained relevancy in the last decades and can determine future performance of these Mediterranean pinewoods. Besides common patterns, recorded site-specific signals in climate-growth relationships reveal the influence of different ecological conditions. In this respect, tree-growth variability increased at low elevation coupled with increasing aridity, indicating higher vulnerability to rapid climate changes at low elevations. In contrast, the lack of strong precipitation signals and positive effects of temperatures at high elevation, could buffer the impact of drought and favor the persistence of P. sylvestris and P. nigra rear edge populations. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66354
Appears in Collections: 影响、适应和脆弱性
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作者单位: Terrestrial Ecology Group, Ecology Department, Faculty of Science, University of Granada, 18071 Granada, Spain; Swiss Federal Research Institute WSL, Zurcherstrasse 111, 8903 Birmensdorf, Switzerland
Recommended Citation:
Herrero A.,Rigling A.,Zamora R.. Varying climate sensitivity at the dry distribution edge of Pinus sylvestris and P. nigra[J]. Forest Ecology and Management,2013-01-01,308