globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13937
Scopus记录号: 2-s2.0-85042145523
论文题名:
Increased water-use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits
作者: Martínez-Sancho E.; Dorado-Liñán I.; Gutiérrez Merino E.; Matiu M.; Helle G.; Heinrich I.; Menzel A.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:3
起始页码: 1012
结束页码: 1028
语种: 英语
英文关键词: basal area increment ; carbon isotope discrimination ; Mediterranean Basin ; Pinus sylvestris ; Quercus petraea ; tree rings
Scopus关键词: basal area ; carbon isotope ; coniferous tree ; ecophysiology ; growth response ; physiological response ; tree ring ; water use efficiency ; Pinus sylvestris ; Quercus petraea
英文摘要: In forests, the increase in atmospheric CO2 concentrations (Ca) has been related to enhanced tree growth and intrinsic water-use efficiency (iWUE). However, in drought-prone areas such as the Mediterranean Basin, it is not yet clear to what extent this “fertilizing” effect may compensate for drought-induced growth reduction. We investigated tree growth and physiological responses at five Scots pine (Pinus sylvestris L.) and five sessile oak (Quercus petraea (Matt.) Liebl.) sites located at their southernmost distribution limits in Europe for the period 1960–2012 using annually resolved tree-ring width and δ13C data to track ecophysiological processes. Results indicated that all 10 natural stands significantly increased their leaf intercellular CO2 concentration (Ci), and consequently iWUE. Different trends in the theoretical gas-exchange scenarios as a response to increasing Ca were found: generally, Ci tended to increase proportionally to Ca, except for trees at the driest sites in which Ci remained constant. Ci from the oak sites displaying higher water availability tended to increase at a comparable rate to Ca. Multiple linear models fitted at site level to predict basal area increment (BAI) using iWUE and climatic variables better explained tree growth in pines (31.9%–71.4%) than in oak stands (15.8%–46.8%). iWUE was negatively linked to pine growth, whereas its effect on growth of oak differed across sites. Tree growth in the western and central oak stands was negatively related to iWUE, whereas BAI from the easternmost stand was positively associated with iWUE. Thus, some Q. petraea stands might have partially benefited from the “fertilizing” effect of rising Ca, whereas P. sylvestris stands due to their strict closure of stomata did not profit from increased iWUE and consequently showed in general growth reductions across sites. Additionally, the inter-annual variability of BAI and iWUE displayed a geographical polarity in the Mediterranean. © 2017 John Wiley & Sons Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110471
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Ecoclimatology, Department of Ecology and Ecosystem Management, Technische Universität München, Freising, Germany; Departamento de Silvicultura y Gestión de los Sistemas Forestales, CIFOR-INIA, Madrid, Spain; Departament of Biological Evolution, Ecology and Environmental Sciences, Universitat de Barcelona, Barcelona, Spain; Climate Dynamics and Landscape Evolution, GFZ – German Research Centre for Geosciences, Potsdam, Germany; Institute for Advanced Study, Technische Universität München, Garching, Germany

Recommended Citation:
Martínez-Sancho E.,Dorado-Liñán I.,Gutiérrez Merino E.,et al. Increased water-use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits[J]. Global Change Biology,2018-01-01,24(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Martínez-Sancho E.]'s Articles
[Dorado-Liñán I.]'s Articles
[Gutiérrez Merino E.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Martínez-Sancho E.]'s Articles
[Dorado-Liñán I.]'s Articles
[Gutiérrez Merino E.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Martínez-Sancho E.]‘s Articles
[Dorado-Liñán I.]‘s Articles
[Gutiérrez Merino E.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.