Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions

Warming-induced drought stress has been hypothesized as a major driver of forest net primary production (NPP) reduction, but we lack reliable field data to assess if higher temperatures lead to forest NPP reduction, particularly in humid sites and at basin to landscape spatial scales. The use of a l...

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Autores: Vicente Serrano, Sergio M., Camarero, Jesús Julio, Zabalza-Martínez, Javier, Sangüesa-Barreda, G., López-Moreno, Juan I., Tague, Christina L.
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/113269
Acceso en línea:http://hdl.handle.net/10261/113269
Access Level:acceso abierto
Palabra clave:Silver fir
Drought stress
Pyrenees
Regional hydro-ecological simulation system (RHESSys)
Abies alba
Tree-ring
Climate warming
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spelling Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditionsVicente Serrano, Sergio M.Camarero, Jesús JulioZabalza-Martínez, JavierSangüesa-Barreda, G.López-Moreno, Juan I.Tague, Christina L.Silver firDrought stressPyreneesRegional hydro-ecological simulation system (RHESSys)Abies albaTree-ringClimate warmingWarming-induced drought stress has been hypothesized as a major driver of forest net primary production (NPP) reduction, but we lack reliable field data to assess if higher temperatures lead to forest NPP reduction, particularly in humid sites and at basin to landscape spatial scales. The use of a landscape approach would allow considering the feedbacks operating between climate, topography, soil vegetation and water resources. Here we follow that approach by simulating NPP using the regional hydro-ecologic simulation system (RHESSys) model and by comparing the results with radial growth data (tree-ring widths and intrinsic water-use efficiency - iWUE). We evaluate the relationships between climate, growth, NPP, atmospheric CO2 concentrations (ca) and iWUE in xeric and mesic silver fir forests subjected to contrasting water balances. The growth data successfully validated the 11-month NPP cumulated until spring. The main negative climatic driver of growth and NPP was the summer evapotranspiration deficit, which shows a negative association with tree-ring width indices. Sensitivity analyses indicate that rising ca do not compensate the severe NPP reduction associated to warmer and drier conditions. The positive effect of rising ca on NPP is mediated by climatic site conditions being detected only in mesic sites, whereas the negative effects of drought on NPP override any ca-related enhancement of NPP in xeric sites. Future warmer and drier conditions causing a higher evaporative demand by the atmosphere could lead to a NPP decline in temperate conifer forests subjected to episodic droughts. © 2015 Elsevier B.V.We would like to thank the Spanish Meteorological State Agency (AEMET) and the Confederación Hidrográfica del Ebro for providing the climatic and streamflow databases used in this study. This work has been supported by research projects CGL2011-27574-CO2-02, CGL2011-27536, CGL2014-52135-CO3-01 and Red de variabilidad y cambio climático RECLIM (CGL2014-517221-REDT) financed by the Spanish Commission of Science and Technology and FEDER, “LIFE12 ENV/ES/000536-Demonstration and validation of innovative methodology for regional climate change adaptation in the Mediterranean area (LIFE MEDACC)” financed by the LIFE programme of the European Commission and CTTP1/12 financed by the Comunidad de Trabajo de los Pirineos. JJC also acknowledges the support of ARAID and projects 012/2008, 387/2011 and 1012S (Organismo Autónomo Parques Nacionales, Spain).Peer ReviewedElsevier2015201520152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/113269reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.agrformet.2015.02.017info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1132692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
title Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
spellingShingle Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
Vicente Serrano, Sergio M.
Silver fir
Drought stress
Pyrenees
Regional hydro-ecological simulation system (RHESSys)
Abies alba
Tree-ring
Climate warming
title_short Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
title_full Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
title_fullStr Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
title_full_unstemmed Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
title_sort Evapotranspiration deficit controls net primary production and growth of silver fir: Implications for Circum-Mediterranean forests under forecasted warmer and drier conditions
dc.creator.none.fl_str_mv Vicente Serrano, Sergio M.
Camarero, Jesús Julio
Zabalza-Martínez, Javier
Sangüesa-Barreda, G.
López-Moreno, Juan I.
Tague, Christina L.
author Vicente Serrano, Sergio M.
author_facet Vicente Serrano, Sergio M.
Camarero, Jesús Julio
Zabalza-Martínez, Javier
Sangüesa-Barreda, G.
López-Moreno, Juan I.
Tague, Christina L.
author_role author
author2 Camarero, Jesús Julio
Zabalza-Martínez, Javier
Sangüesa-Barreda, G.
López-Moreno, Juan I.
Tague, Christina L.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Silver fir
Drought stress
Pyrenees
Regional hydro-ecological simulation system (RHESSys)
Abies alba
Tree-ring
Climate warming
topic Silver fir
Drought stress
Pyrenees
Regional hydro-ecological simulation system (RHESSys)
Abies alba
Tree-ring
Climate warming
description Warming-induced drought stress has been hypothesized as a major driver of forest net primary production (NPP) reduction, but we lack reliable field data to assess if higher temperatures lead to forest NPP reduction, particularly in humid sites and at basin to landscape spatial scales. The use of a landscape approach would allow considering the feedbacks operating between climate, topography, soil vegetation and water resources. Here we follow that approach by simulating NPP using the regional hydro-ecologic simulation system (RHESSys) model and by comparing the results with radial growth data (tree-ring widths and intrinsic water-use efficiency - iWUE). We evaluate the relationships between climate, growth, NPP, atmospheric CO2 concentrations (ca) and iWUE in xeric and mesic silver fir forests subjected to contrasting water balances. The growth data successfully validated the 11-month NPP cumulated until spring. The main negative climatic driver of growth and NPP was the summer evapotranspiration deficit, which shows a negative association with tree-ring width indices. Sensitivity analyses indicate that rising ca do not compensate the severe NPP reduction associated to warmer and drier conditions. The positive effect of rising ca on NPP is mediated by climatic site conditions being detected only in mesic sites, whereas the negative effects of drought on NPP override any ca-related enhancement of NPP in xeric sites. Future warmer and drier conditions causing a higher evaporative demand by the atmosphere could lead to a NPP decline in temperate conifer forests subjected to episodic droughts. © 2015 Elsevier B.V.
publishDate 2015
dc.date.none.fl_str_mv 2015
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/10261/113269
url http://hdl.handle.net/10261/113269
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.agrformet.2015.02.017
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15,812429

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