DOI: 10.1016/j.gloplacha.2014.11.011
论文题名: Drought-induced weakening of growth-temperature associations in high-elevation Iberian pines
作者: Diego Galván J. ; Büntgen U. ; Ginzler C. ; Grudd H. ; Gutiérrez E. ; Labuhn I. ; Julio Camarero J.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 124 起始页码: 95
结束页码: 106
语种: 英语
英文关键词: Climate change
; Drought
; Growth response
; High-elevation forest
; Pyrenees
; Summer temperature
Scopus关键词: Climate change
; Drought
; Frequency domain analysis
; Population statistics
; Ecosystem functioning
; Growth response
; High elevation
; Low frequency domain
; Pyrenees
; Summer temperature
; Temperature increase
; Temperature sensitivity
; Forestry
; coniferous tree
; drought stress
; ecosystem function
; growth rate
; growth response
; limiting factor
; risk factor
; temperature effect
; Climates
; Drought
; Growth
; Temperature
; Iberian Peninsula
; Mediterranean Sea
; Pyrenees
; Pinus uncinata
英文摘要: The growth/climate relationship of theoretically temperature-controlled high-elevation forests has been demonstrated to weaken over recent decades. This is likely due to new tree growth limiting factors, such as an increasing drought risk for ecosystem functioning and productivity across the Mediterranean Basin. In addition, declining tree growth sensitivity to spring temperature may emerge in response to increasing drought stress. Here, we evaluate these ideas by assessing the growth/climate sensitivity of 1500 tree-ring width (TRW) and 102 maximum density (MXD) measurement series from 711 and 74 Pinus uncinata trees, respectively, sampled at 28 high-elevation forest sites across the Pyrenees and two relict populations of the Iberian System. Different dendroclimatological standardization and split period approaches were used to assess the high- to low-frequency behavior of 20th century tree growth in response to temperature means, precipitation totals and drought indices. Long-term variations in TRW track summer temperatures until about 1970 but diverge afterwards, whereas MXD captures the recent temperature increase in the low-frequency domain fairly well. On the other hand summer drought has increasingly driven TRW along the 20th century. Our results suggest fading temperature sensitivity of Iberian high-elevation P. uncinata forest growth, and reveal the importance of summer drought that is becoming the emergent limiting factor of tree ring width formation in many parts of the Mediterranean Basin. © 2014 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949117668&doi=10.1016%2fj.gloplacha.2014.11.011&partnerID=40&md5=077b657a2687d040b6d500140c8655c6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11576
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Montañana 1005, Apdo. 202, Zaragoza, Spain
Recommended Citation:
Diego Galván J.,Büntgen U.,Ginzler C.,et al. Drought-induced weakening of growth-temperature associations in high-elevation Iberian pines[J]. Global and Planetary Change,2015-01-01,124.