Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal

Autores
Sione, Silvana María José; Wilson, Marcelo German; Ledesma, Silvia Gabriela; Gabioud, Emmanuel Adrian; Sattler, Noelia; Srur, Ana Marina; Villalba, Ricardo
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background: Heat waves can constrain tree growth and, under extreme conditions, may trigger tree mortality. We evaluated their effects on the water status of Neltuma affinis in a xerophytic forest of the Espinal. Methods: Stem radius variations were recorded at 15-min intervals in six trees over a complete annual cycle (July 2024–June 2025). Soil temperature and volumetric water content (VWC) were monitored simultaneously. Tree water status was assessed using dendrometer-derived metrics, including normalized maximum daily shrinkage (MDSnorm) and normalized tree water deficit (TWDnorm). Daily aggregated and normalized series were analyzed using regularized dynamic regression models that incorporated temporal autocorrelation, lagged hydroclimatic predictors, and system memory. Results: The most severe heat waves of the past 90 years were concentrated in the last decade (2015–2025), and heat wave frequency was significantly higher during 1995–2025 than during 1935–1965 (0.79 vs. 0.37 events yr−1; p = 0.011). A severe summer drought from mid-December 2024 to February 2025 caused sustained stem dehydration, which intensified during three concurrent heat wave episodes. These events were characterized by high TWDnorm values, reaching mean maxima of 1.178 ± 0.246, low MDSnorm values, VWC close to the permanent wilting point, and high evaporative demand. Under severe soil water deficit, extreme positive temperature anomalies amplified reductions in stem radius. Conversely, higher VWC during extreme heat buffered thermal effects and reduced stem contraction. Conclusions: This study shows that soil water availability is the key modulator of heat wave impacts on N. affinis, determining whether extreme temperatures translate into severe stem dehydration and growth decline.
EEA Paraná
Fil: Sione, Silvana María José. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Sione, Silvana María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; Argentina
Fil: Wilson, Marcelo G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Wilson, Marcelo G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ledesma, Silvia Gabriela. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Gabioud, Emmanuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Sattler, Noelia. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Sattler, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; Argentina
Fil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Srur, Ana Marina. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Villalba, Ricardo. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fuente
Ecological Processes 15 : article number 68. (July 2026)
Materia
Contenido de Agua en el Suelo
Ola de Calor
Xerofitas
Evento Meteorológico Extremo
Bosques
Soil Water Content
Heatwaves
Xerophytes
Extreme Weather Events
Forests
Neltuma affinis
Espinal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/27125
Acceder
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oai_identifier_str oai:localhost:20.500.12123/27125
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the EspinalSione, Silvana María JoséWilson, Marcelo GermanLedesma, Silvia GabrielaGabioud, Emmanuel AdrianSattler, NoeliaSrur, Ana MarinaVillalba, RicardoContenido de Agua en el SueloOla de CalorXerofitasEvento Meteorológico ExtremoBosquesSoil Water ContentHeatwavesXerophytesExtreme Weather EventsForestsNeltuma affinisEspinalBackground: Heat waves can constrain tree growth and, under extreme conditions, may trigger tree mortality. We evaluated their effects on the water status of Neltuma affinis in a xerophytic forest of the Espinal. Methods: Stem radius variations were recorded at 15-min intervals in six trees over a complete annual cycle (July 2024–June 2025). Soil temperature and volumetric water content (VWC) were monitored simultaneously. Tree water status was assessed using dendrometer-derived metrics, including normalized maximum daily shrinkage (MDSnorm) and normalized tree water deficit (TWDnorm). Daily aggregated and normalized series were analyzed using regularized dynamic regression models that incorporated temporal autocorrelation, lagged hydroclimatic predictors, and system memory. Results: The most severe heat waves of the past 90 years were concentrated in the last decade (2015–2025), and heat wave frequency was significantly higher during 1995–2025 than during 1935–1965 (0.79 vs. 0.37 events yr−1; p = 0.011). A severe summer drought from mid-December 2024 to February 2025 caused sustained stem dehydration, which intensified during three concurrent heat wave episodes. These events were characterized by high TWDnorm values, reaching mean maxima of 1.178 ± 0.246, low MDSnorm values, VWC close to the permanent wilting point, and high evaporative demand. Under severe soil water deficit, extreme positive temperature anomalies amplified reductions in stem radius. Conversely, higher VWC during extreme heat buffered thermal effects and reduced stem contraction. Conclusions: This study shows that soil water availability is the key modulator of heat wave impacts on N. affinis, determining whether extreme temperatures translate into severe stem dehydration and growth decline.EEA ParanáFil: Sione, Silvana María José. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Sione, Silvana María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; ArgentinaFil: Wilson, Marcelo G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; ArgentinaFil: Wilson, Marcelo G. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ledesma, Silvia Gabriela. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Gabioud, Emmanuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; ArgentinaFil: Sattler, Noelia. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Sattler, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; ArgentinaFil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); ArgentinaFil: Srur, Ana Marina. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); ArgentinaFil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); ArgentinaFil: Villalba, Ricardo. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); ArgentinaSpringer2026-07-24T11:21:55Z2026-07-24T11:21:55Z2026-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27125https://link.springer.com/article/10.1186/s13717-026-00723-32192-1709https://doi.org/10.1186/s13717-026-00723-3Ecological Processes 15 : article number 68. (July 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-09-24T11:43:29Zoai:localhost:20.500.12123/27125instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:31.263INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
title Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
spellingShingle Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
Sione, Silvana María José
Contenido de Agua en el Suelo
Ola de Calor
Xerofitas
Evento Meteorológico Extremo
Bosques
Soil Water Content
Heatwaves
Xerophytes
Extreme Weather Events
Forests
Neltuma affinis
Espinal
title_short Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
title_full Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
title_fullStr Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
title_full_unstemmed Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
title_sort Soil water content mediates heat wave impacts on stem water status and growth of Neltuma affinis in the Espinal
dc.creator.none.fl_str_mv Sione, Silvana María José
Wilson, Marcelo German
Ledesma, Silvia Gabriela
Gabioud, Emmanuel Adrian
Sattler, Noelia
Srur, Ana Marina
Villalba, Ricardo
author Sione, Silvana María José
author_facet Sione, Silvana María José
Wilson, Marcelo German
Ledesma, Silvia Gabriela
Gabioud, Emmanuel Adrian
Sattler, Noelia
Srur, Ana Marina
Villalba, Ricardo
author_role author
author2 Wilson, Marcelo German
Ledesma, Silvia Gabriela
Gabioud, Emmanuel Adrian
Sattler, Noelia
Srur, Ana Marina
Villalba, Ricardo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Contenido de Agua en el Suelo
Ola de Calor
Xerofitas
Evento Meteorológico Extremo
Bosques
Soil Water Content
Heatwaves
Xerophytes
Extreme Weather Events
Forests
Neltuma affinis
Espinal
topic Contenido de Agua en el Suelo
Ola de Calor
Xerofitas
Evento Meteorológico Extremo
Bosques
Soil Water Content
Heatwaves
Xerophytes
Extreme Weather Events
Forests
Neltuma affinis
Espinal
dc.description.none.fl_txt_mv Background: Heat waves can constrain tree growth and, under extreme conditions, may trigger tree mortality. We evaluated their effects on the water status of Neltuma affinis in a xerophytic forest of the Espinal. Methods: Stem radius variations were recorded at 15-min intervals in six trees over a complete annual cycle (July 2024–June 2025). Soil temperature and volumetric water content (VWC) were monitored simultaneously. Tree water status was assessed using dendrometer-derived metrics, including normalized maximum daily shrinkage (MDSnorm) and normalized tree water deficit (TWDnorm). Daily aggregated and normalized series were analyzed using regularized dynamic regression models that incorporated temporal autocorrelation, lagged hydroclimatic predictors, and system memory. Results: The most severe heat waves of the past 90 years were concentrated in the last decade (2015–2025), and heat wave frequency was significantly higher during 1995–2025 than during 1935–1965 (0.79 vs. 0.37 events yr−1; p = 0.011). A severe summer drought from mid-December 2024 to February 2025 caused sustained stem dehydration, which intensified during three concurrent heat wave episodes. These events were characterized by high TWDnorm values, reaching mean maxima of 1.178 ± 0.246, low MDSnorm values, VWC close to the permanent wilting point, and high evaporative demand. Under severe soil water deficit, extreme positive temperature anomalies amplified reductions in stem radius. Conversely, higher VWC during extreme heat buffered thermal effects and reduced stem contraction. Conclusions: This study shows that soil water availability is the key modulator of heat wave impacts on N. affinis, determining whether extreme temperatures translate into severe stem dehydration and growth decline.
EEA Paraná
Fil: Sione, Silvana María José. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Sione, Silvana María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; Argentina
Fil: Wilson, Marcelo G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Wilson, Marcelo G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ledesma, Silvia Gabriela. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Gabioud, Emmanuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Sattler, Noelia. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Sattler, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigación Científica y de Transferencia Tecnológica a la Producción; Argentina
Fil: Srur, Ana Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Srur, Ana Marina. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
Fil: Villalba, Ricardo. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina
description Background: Heat waves can constrain tree growth and, under extreme conditions, may trigger tree mortality. We evaluated their effects on the water status of Neltuma affinis in a xerophytic forest of the Espinal. Methods: Stem radius variations were recorded at 15-min intervals in six trees over a complete annual cycle (July 2024–June 2025). Soil temperature and volumetric water content (VWC) were monitored simultaneously. Tree water status was assessed using dendrometer-derived metrics, including normalized maximum daily shrinkage (MDSnorm) and normalized tree water deficit (TWDnorm). Daily aggregated and normalized series were analyzed using regularized dynamic regression models that incorporated temporal autocorrelation, lagged hydroclimatic predictors, and system memory. Results: The most severe heat waves of the past 90 years were concentrated in the last decade (2015–2025), and heat wave frequency was significantly higher during 1995–2025 than during 1935–1965 (0.79 vs. 0.37 events yr−1; p = 0.011). A severe summer drought from mid-December 2024 to February 2025 caused sustained stem dehydration, which intensified during three concurrent heat wave episodes. These events were characterized by high TWDnorm values, reaching mean maxima of 1.178 ± 0.246, low MDSnorm values, VWC close to the permanent wilting point, and high evaporative demand. Under severe soil water deficit, extreme positive temperature anomalies amplified reductions in stem radius. Conversely, higher VWC during extreme heat buffered thermal effects and reduced stem contraction. Conclusions: This study shows that soil water availability is the key modulator of heat wave impacts on N. affinis, determining whether extreme temperatures translate into severe stem dehydration and growth decline.
publishDate 2026
dc.date.none.fl_str_mv 2026-07-24T11:21:55Z
2026-07-24T11:21:55Z
2026-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/27125
https://link.springer.com/article/10.1186/s13717-026-00723-3
2192-1709
https://doi.org/10.1186/s13717-026-00723-3
url http://hdl.handle.net/20.500.12123/27125
https://link.springer.com/article/10.1186/s13717-026-00723-3
https://doi.org/10.1186/s13717-026-00723-3
identifier_str_mv 2192-1709
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Ecological Processes 15 : article number 68. (July 2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.754232

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