干旱区生态环境知识资源中心(Arid): Tree-ring density and carbon isotope composition are early-warning signals of drought-induced mortality in the drought tolerant Canary Island pine

Arid

DOI	10.1016/j.agrformet.2021.108634
	Tree-ring density and carbon isotope composition are early-warning signals of drought-induced mortality in the drought tolerant Canary Island pine
	Lopez, Rosana; Javier Cano, Francisco; Rodriguez-Calcerrada, Jesus; Sanguesa-Barreda, Gabriel; Gazol, Antonio; Julio Camarero, J.; Rozenberg, Philippe; Gil, Luis
通讯作者	Lopez, R (corresponding author), Univ Politecn Madrid, Dept Sistemas Nat & Hist Forestal, Ciudad Univ, Madrid 28040, Spain.
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2021
卷号	310
英文摘要	Tree death is not always preceded by a visible decline in vigor (canopy dieback) or a progressive loss in crown volume. Identifying early-warning signals of incipient decline can help to implement the necessary measures to prevent tree death. The aim of this work is to understand what functional alterations preceded the massive drought-induced death of adult Pinus canariensis trees in an arid stand, located in the Canary Islands. To this aim, we analyzed interannual variations in earlywood and latewood width, wood density and anatomy, and carbon isotope composition, and the relationships among these variables, in dead and living trees from 1980 to 2013. Dead trees grew less since the 1990' s, produced fewer parenchyma rays and resin canals, and exhibited a trend of decreasing latewood density and a marked shift in carbon isotope discrimination over the last 34 years that were reversed in living trees. Higher wood density in living trees resulted from thicker tracheid cell walls rather than narrower lumens. The intrinsic water use efficiency shifted from higher to lower values in dead trees after the 2000s. These results suggest a carbon limitation to maintain hydraulic safety under xylem tension, as well as to maintain storage and defense capacity, which can render trees more vulnerable to severe drought episodes. A long-term trend of decreasing tree-ring density and a reduced intrinsic water use efficiency in the short-term can be early-warning signals of carbon limitation and tree decline in drought-stressed P. canariensis. The analysis of these variables can be used to assess tree decline risks in similarly vulnerable conifer populations inhabiting drought-prone regions.
英文关键词	Dieback Drought Pinus canariensis Tree-ring width, Water use efficiency Wood density, Xylem functional anatomy
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000698753900020
WOS关键词	WATER-USE EFFICIENCY ; WOOD DENSITY ; CLIMATE-CHANGE ; GAS-EXCHANGE ; RESIN YIELD ; PHYSIOLOGICAL-MECHANISMS ; GROWTH-PATTERNS ; STABLE CARBON ; XYLEM ; FOREST
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368172
作者单位	[Lopez, Rosana; Rodriguez-Calcerrada, Jesus; Gil, Luis] Univ Politecn Madrid, Dept Sistemas Nat & Hist Forestal, Ciudad Univ, Madrid 28040, Spain; [Javier Cano, Francisco] Western Sydney Univ, ARC Ctr Excellence Translat Photosynth, Hawkesbury Inst Environm, Richmond, NSW 2753, Australia; [Sanguesa-Barreda, Gabriel] Univ Valladolid, EiFAB iuFOR, Campus Duques Soria, Soria 42004, Spain; [Gazol, Antonio; Julio Camarero, J.] Inst Pirena Ecol IPE CSIC, Avda Montanana 1005, E-50192 Zaragoza, Spain; [Rozenberg, Philippe] INRAE, Biol Integree Valorisat Diversite Arbres & Foret, 2163 Ave Pomme Pin,BP 20619, F-45166 Olivet, France
推荐引用方式 GB/T 7714	Lopez, Rosana,Javier Cano, Francisco,Rodriguez-Calcerrada, Jesus,et al. Tree-ring density and carbon isotope composition are early-warning signals of drought-induced mortality in the drought tolerant Canary Island pine[J],2021,310.
APA	Lopez, Rosana.,Javier Cano, Francisco.,Rodriguez-Calcerrada, Jesus.,Sanguesa-Barreda, Gabriel.,Gazol, Antonio.,...&Gil, Luis.(2021).Tree-ring density and carbon isotope composition are early-warning signals of drought-induced mortality in the drought tolerant Canary Island pine.AGRICULTURAL AND FOREST METEOROLOGY,310.
MLA	Lopez, Rosana,et al."Tree-ring density and carbon isotope composition are early-warning signals of drought-induced mortality in the drought tolerant Canary Island pine".AGRICULTURAL AND FOREST METEOROLOGY 310(2021).