Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality

© 2014, Springer-Verlag Berlin Heidelberg. Key message: The retrospective analysis of wood anatomical features evidences how a long-term deterioration of hydraulic performance and carbon use portend drought-induced mortality in Scots pine. Abstract: Widespread episodes of drought-induced tree mortal...

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Autores: Hereş, Ana-María, Camarero, Jesús Julio, López, Bernat C., Martínez-Vilalta, Jordi
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/110159
Acceso en línea:http://hdl.handle.net/10261/110159
Access Level:acceso abierto
Palabra clave:Scots pine
Tracheid
Mortality
Drought
Tree ring
Wood anatomy
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spelling Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortalityHereş, Ana-MaríaCamarero, Jesús JulioLópez, Bernat C.Martínez-Vilalta, JordiScots pineTracheidMortalityDroughtTree ringWood anatomy© 2014, Springer-Verlag Berlin Heidelberg. Key message: The retrospective analysis of wood anatomical features evidences how a long-term deterioration of hydraulic performance and carbon use portend drought-induced mortality in Scots pine. Abstract: Widespread episodes of drought-induced tree mortality are predicted to become more frequent as climate becomes warmer and drier. Nevertheless, growth trends and their links to changes in wood anatomy before tree dies are still poorly understood. Wood anatomical features provide valuable information that can be extracted to infer the mechanisms leading to tree death. In this study, we characterize drought-induced mortality affecting two Scots pine (Pinus sylvestris) sites (Prades and Arcalís) located in the North Eastern Iberian Peninsula. Co-occurring now-dead and living Scots pine trees were sampled and their wood anatomical features were measured and compared. We aimed to detect differences in anatomical features between living and dead trees, and to infer past physiological performances that might have determined their subsequent death or survival. Now-dead trees showed lower tracheid and resin duct production, and smaller radial lumen diameters than co-occurring living trees. At the more xeric Prades site, these anatomical differences were larger and chronic, i.e. were observed over the three studied decades, whilst they were less pronounced at the other, more mesic Arcalís site, where tree mortality episodes were more recent. This indicates that dead trees’ hydraulic conductivity was severely affected and that carbon investment in xylem formation and resin duct production was constrained prior to tree death. Our findings show that both hydraulic deterioration and low carbon allocation to xylem formation were associated to drought-induced mortality in Scots pine. Nevertheless, the temporal dynamics of these processes differed between populations as a function of site climatic conditions.he authors thank H.A. Chaparro, A.Q. Alla, E. Pasho and M.C. Sancho for laboratory assistance. We also thank Debora Gil, who wrote all the Matlab codes for DACiA development. We are indebted to M. Mencuccini for field work and valuable discussions. The authors are also thankful to M. Ninyerola and the Catalan Meteorological Service for providing the two climatic datasets used in this study. Special thanks to M. Mejia-Chang for being part of our lives and a great inspiration for us all. This research was funded by the Spanish Ministry of Science and Innovation (projects CGL2007-60120, CSD2008-0040, CGL2010-16373, CGL2011-26654), a FPU PhD scholarship and a short stay at the IPE (CSIC).Peer ReviewedSpringer Nature2015201520142015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/110159reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1101592026-05-22T06:33:51Z
dc.title.none.fl_str_mv Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
title Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
spellingShingle Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
Hereş, Ana-María
Scots pine
Tracheid
Mortality
Drought
Tree ring
Wood anatomy
title_short Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
title_full Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
title_fullStr Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
title_full_unstemmed Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
title_sort Declining hydraulic performances and low carbon investments in tree rings predate Scots pine drought-induced mortality
dc.creator.none.fl_str_mv Hereş, Ana-María
Camarero, Jesús Julio
López, Bernat C.
Martínez-Vilalta, Jordi
author Hereş, Ana-María
author_facet Hereş, Ana-María
Camarero, Jesús Julio
López, Bernat C.
Martínez-Vilalta, Jordi
author_role author
author2 Camarero, Jesús Julio
López, Bernat C.
Martínez-Vilalta, Jordi
author2_role author
author
author
dc.subject.none.fl_str_mv Scots pine
Tracheid
Mortality
Drought
Tree ring
Wood anatomy
topic Scots pine
Tracheid
Mortality
Drought
Tree ring
Wood anatomy
description © 2014, Springer-Verlag Berlin Heidelberg. Key message: The retrospective analysis of wood anatomical features evidences how a long-term deterioration of hydraulic performance and carbon use portend drought-induced mortality in Scots pine. Abstract: Widespread episodes of drought-induced tree mortality are predicted to become more frequent as climate becomes warmer and drier. Nevertheless, growth trends and their links to changes in wood anatomy before tree dies are still poorly understood. Wood anatomical features provide valuable information that can be extracted to infer the mechanisms leading to tree death. In this study, we characterize drought-induced mortality affecting two Scots pine (Pinus sylvestris) sites (Prades and Arcalís) located in the North Eastern Iberian Peninsula. Co-occurring now-dead and living Scots pine trees were sampled and their wood anatomical features were measured and compared. We aimed to detect differences in anatomical features between living and dead trees, and to infer past physiological performances that might have determined their subsequent death or survival. Now-dead trees showed lower tracheid and resin duct production, and smaller radial lumen diameters than co-occurring living trees. At the more xeric Prades site, these anatomical differences were larger and chronic, i.e. were observed over the three studied decades, whilst they were less pronounced at the other, more mesic Arcalís site, where tree mortality episodes were more recent. This indicates that dead trees’ hydraulic conductivity was severely affected and that carbon investment in xylem formation and resin duct production was constrained prior to tree death. Our findings show that both hydraulic deterioration and low carbon allocation to xylem formation were associated to drought-induced mortality in Scots pine. Nevertheless, the temporal dynamics of these processes differed between populations as a function of site climatic conditions.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/110159
url http://hdl.handle.net/10261/110159
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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