DOI: 10.1016/j.foreco.2013.01.028
Scopus记录号: 2-s2.0-84875242574
论文题名: Drought and mistletoe reduce growth and water-use efficiency of Scots pine
作者: Sangüesa-Barreda G. ; Linares J.C. ; Julio Camarero J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 296 起始页码: 64
结束页码: 73
语种: 英语
英文关键词: Basal area increment
; Dendrochronology
; Intrinsic water-use efficiency
; Pinus sylvestris
; Viscum album
Scopus关键词: Basal area increment
; Dendrochronology
; Intrinsic water-use efficiencies
; Pinus sylvestris
; Viscum albums
; Carbon dioxide
; Climate models
; Climatology
; Drought
; Efficiency
; Water supply
; Forestry
; atmospheric chemistry
; basal area
; carbon dioxide
; compensation
; coniferous tree
; defoliation
; dendrochronology
; drought
; environmental stress
; growth rate
; long-term change
; numerical model
; parasite infestation
; parasitic plant
; water use efficiency
; Basal Area
; Carbon Dioxide
; Drought
; Forestry
; Meteorology
; Mistletoe
; Pinus Sylvestris
; Water Supply
英文摘要: To what extent do mistletoes contribute to growth decline in drought-prone forests? Can the rising atmospheric CO2 concentrations offset the negative impacts of drought and mistletoe infestation on tree growth? Long-term data on growth and intrinsic water use efficiency (iWUE) may allow answering both questions. We used dendrochronology to assess long-term changes in radial growth and iWUE in Scots pine (Pinus sylvestris) trees severely infested by mistletoe (Viscum album) as compared to non-infested trees. The relationships among tree variables and mistletoe infestation were quantified using structural equation models. Linear mixed-effects models of basal area increment as a function of climate were fitted to severely infested and non-infested trees. Infested trees showed higher stem and crown diameters because they grew faster than non-infested trees in the past. Mistletoe infestation enhanced defoliation and reduced radial growth for more than 10years prior to sampling, while iWUE was significantly lower on severely infested trees only for the last 5years. Severely infested trees had higher growth responsiveness to drought stress than non-infested trees. Although infested and non-infested trees displayed similar rising iWUE temporal trends, the combined effect of drought stress and mistletoe infestation caused a reduction in growth and reversed the CO2-induced increase of iWUE in infested trees. We conclude that rising atmospheric CO2 concentrations cannot compensate for the impacts of drought and mistletoe on tree growth and iWUE. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66648
Appears in Collections: 影响、适应和脆弱性
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作者单位: Instituto Pirenaico de Ecología (CSIC), Avda. Montañana 1005, Apdo. 202, 50192 Zaragoza, Spain; Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera km. 1, 41002 Sevilla, Spain; ARAID, Instituto Pirenaico de Ecología (CSIC), Avda. Montañana 1005, Apdo. 202, 50192 Zaragoza, Spain; Dept. d'Ecologia, Fac. Biologia, Universitat de Barcelona, Avda. Diagonal 645, 08028 Barcelona, Spain
Recommended Citation:
Sangüesa-Barreda G.,Linares J.C.,Julio Camarero J.. Drought and mistletoe reduce growth and water-use efficiency of Scots pine[J]. Forest Ecology and Management,2013-01-01,296