Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem

Predicted droughts and anthropogenic water use will increase groundwater lowering rates and intensify groundwater limitation, particularly for Mediterranean semi-arid ecosystems. These hydrological changes may be expected to elicit differential functional responses of vegetation either belowground o...

Descripción completa

Detalles Bibliográficos
Autores: Antunes, Cristina, Chozas, Sergio, West, Jason, Zunzunegui González, María, Díaz Antunes-Barradas, María Cruz, Vieira, Simone, Máguas, Cristina
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/153103
Acceso en línea:https://hdl.handle.net/11441/153103
https://doi.org/10.1111/gcb.14403
Access Level:acceso abierto
Palabra clave:Coastal dune ecosystem
Groundwater table depth
Photosynthetic activity
Physiological responses
Plant functional types
Plant water status
Water table lowering
Water-uptake depth
id ES_b595942a0eb91f4d80664cdcd2d56a9d
oai_identifier_str oai:idus.us.es:11441/153103
network_acronym_str ES
network_name_str España
repository_id_str
spelling Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystemAntunes, CristinaChozas, SergioWest, JasonZunzunegui González, MaríaDíaz Antunes-Barradas, María CruzVieira, SimoneMáguas, CristinaCoastal dune ecosystemGroundwater table depthPhotosynthetic activityPhysiological responsesPlant functional typesPlant water statusWater table loweringWater-uptake depthPredicted droughts and anthropogenic water use will increase groundwater lowering rates and intensify groundwater limitation, particularly for Mediterranean semi-arid ecosystems. These hydrological changes may be expected to elicit differential functional responses of vegetation either belowground or aboveground. Yet, our ability to predict the impacts of groundwater changes on these ecosystems is still poor. Thus, we sought to better understand the impact of falling water table on the physiology of woody vegetation. We specifically ask (a) how is woody vegetation ecophysiological performance affected by water table depth during the dry season? and (b) does the vegetation response to increasing depth to groundwater differ among water-use functional types? We examined a suite of physiological parameters and water-uptake depths of the dominant, functionally distinct woody vegetation along a water-table depth gradient in a Mediterranean semi-arid coastal ecosystem that is currently experiencing anthropogenic groundwater extraction pressure. We found that groundwater drawdown did negatively affect the ecophysiological performance of the woody vegetation. Across all studied environmental factors, depth to groundwater was the most important driver of ecophysiological adjustments. Plant functional types, independent of groundwater dependence, showed consistent declines in water content and generally reduced C and N acquisition with increasing depths to groundwater. Functional types showed distinct operating physiological ranges, but common physiological sensitivity to greater water table depth. Thus, although differences in water-source use exist, a physiological convergence appeared to happen among different functional types. These results strongly suggest that hydrological drought has an important impact on fundamental physiological processes, constraining the performance of woody vegetation under semi-arid conditions. By disentangling the functional responses and vulnerability of woody vegetation to groundwater limitation, our study establishes the basis for predicting the physiological responses of woody vegetation in semi-arid coastal ecosystems to groundwater drawdown.Fundação para a Ciência e a Tecnologia (FCT) PTDC/AAC-CLI/118555/2010, UID/BIA/00329/2013Wiley-BlackwellBiología Vegetal y EcologíaFundação para a Ciência e a Tecnologia (FCT)2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/153103https://doi.org/10.1111/gcb.14403reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésGlobal Change Biology, 24 (10), 4894-4908.PTDC/AAC-CLI/118555/2010UID/BIA/00329/2013https://doi.org/10.1111/gcb.14403info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1531032026-06-17T12:51:07Z
dc.title.none.fl_str_mv Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
title Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
spellingShingle Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
Antunes, Cristina
Coastal dune ecosystem
Groundwater table depth
Photosynthetic activity
Physiological responses
Plant functional types
Plant water status
Water table lowering
Water-uptake depth
title_short Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
title_full Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
title_fullStr Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
title_full_unstemmed Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
title_sort Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem
dc.creator.none.fl_str_mv Antunes, Cristina
Chozas, Sergio
West, Jason
Zunzunegui González, María
Díaz Antunes-Barradas, María Cruz
Vieira, Simone
Máguas, Cristina
author Antunes, Cristina
author_facet Antunes, Cristina
Chozas, Sergio
West, Jason
Zunzunegui González, María
Díaz Antunes-Barradas, María Cruz
Vieira, Simone
Máguas, Cristina
author_role author
author2 Chozas, Sergio
West, Jason
Zunzunegui González, María
Díaz Antunes-Barradas, María Cruz
Vieira, Simone
Máguas, Cristina
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
Fundação para a Ciência e a Tecnologia (FCT)
dc.subject.none.fl_str_mv Coastal dune ecosystem
Groundwater table depth
Photosynthetic activity
Physiological responses
Plant functional types
Plant water status
Water table lowering
Water-uptake depth
topic Coastal dune ecosystem
Groundwater table depth
Photosynthetic activity
Physiological responses
Plant functional types
Plant water status
Water table lowering
Water-uptake depth
description Predicted droughts and anthropogenic water use will increase groundwater lowering rates and intensify groundwater limitation, particularly for Mediterranean semi-arid ecosystems. These hydrological changes may be expected to elicit differential functional responses of vegetation either belowground or aboveground. Yet, our ability to predict the impacts of groundwater changes on these ecosystems is still poor. Thus, we sought to better understand the impact of falling water table on the physiology of woody vegetation. We specifically ask (a) how is woody vegetation ecophysiological performance affected by water table depth during the dry season? and (b) does the vegetation response to increasing depth to groundwater differ among water-use functional types? We examined a suite of physiological parameters and water-uptake depths of the dominant, functionally distinct woody vegetation along a water-table depth gradient in a Mediterranean semi-arid coastal ecosystem that is currently experiencing anthropogenic groundwater extraction pressure. We found that groundwater drawdown did negatively affect the ecophysiological performance of the woody vegetation. Across all studied environmental factors, depth to groundwater was the most important driver of ecophysiological adjustments. Plant functional types, independent of groundwater dependence, showed consistent declines in water content and generally reduced C and N acquisition with increasing depths to groundwater. Functional types showed distinct operating physiological ranges, but common physiological sensitivity to greater water table depth. Thus, although differences in water-source use exist, a physiological convergence appeared to happen among different functional types. These results strongly suggest that hydrological drought has an important impact on fundamental physiological processes, constraining the performance of woody vegetation under semi-arid conditions. By disentangling the functional responses and vulnerability of woody vegetation to groundwater limitation, our study establishes the basis for predicting the physiological responses of woody vegetation in semi-arid coastal ecosystems to groundwater drawdown.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/153103
https://doi.org/10.1111/gcb.14403
url https://hdl.handle.net/11441/153103
https://doi.org/10.1111/gcb.14403
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Global Change Biology, 24 (10), 4894-4908.
PTDC/AAC-CLI/118555/2010
UID/BIA/00329/2013
https://doi.org/10.1111/gcb.14403
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417375360614400
score 15,300719

Similares en LA Referencia