Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)

Mountains are global biodiversity hotspots but face the danger of habitat loss, especially at lower elevations due to climate-warming-induced forest dieback. In the Gongga Mountains (SW China), Abies fabri trees at 2800 m show increased mortality, yet the causes remain unclear. We assessed climatic...

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Autores: Kudakwashe Zveushe, Obey, Granda, Elena, Camarero, Jesús Julio, Dong, Faqin, Han, Ying, Resco de Dios, Víctor
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/468775
Acceso en línea:https://doi.org/10.3390/f16081222
https://hdl.handle.net/10459.1/468775
http://hdl.handle.net/10459.1/468775
Access Level:acceso abierto
Palabra clave:Basal area incremen
Dendroecology
Forest die-off
Radial growth
Leaf nutrients
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spelling Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)Kudakwashe Zveushe, ObeyGranda, ElenaCamarero, Jesús JulioDong, FaqinHan, YingResco de Dios, VíctorBasal area incremenDendroecologyForest die-offRadial growthLeaf nutrientsMountains are global biodiversity hotspots but face the danger of habitat loss, especially at lower elevations due to climate-warming-induced forest dieback. In the Gongga Mountains (SW China), Abies fabri trees at 2800 m show increased mortality, yet the causes remain unclear. We assessed climatic influences and bark beetle infestations on tree vigor and radial growth, comparing healthy and declining trees at 2800, 3000, and 3600 m elevations. Leaf nitrogen and phosphorus concentrations were measured to evaluate nutrient status. From 1950 to 2019, mean annual temperatures rose at all elevations, while precipitation decreased at low elevations, negatively correlating with temperature. Such warmer, drier conditions impaired low-elevation trees. The decline in A. fabri growth began in the late 1990s to early 2000s, with an earlier and more pronounced onset at lower elevations. A clear lag is evident, as trees at 3000 m and 3600 m showed either delayed or minimal decline during the same period. High-elevation trees experienced more stable climate and better nutrient availability, supporting greater growth and leaf nitrogen in healthy trees. Bark beetle infestations were worst in declining trees at the highest elevation. Our results reveal that A. fabri vigor shifts along elevation gradients reflect interactions between abiotic and biotic stressors, especially aridification.This study was funded by the Sichuan Provincial Department of Science and Technology and Department of Education (2024NSFSC1989), and the International Cooperation Project of Sichuan Provincial Department of Science and Technology (25GJHZ0331).MDPI2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.3390/f16081222https://hdl.handle.net/10459.1/468775http://hdl.handle.net/10459.1/468775reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a https://doi.org/10.3390/f16081222Forest, 2025, vol. 16, núm. 8, p. 1-21cc-by (c) Kudakwashe et al., 2025Attribution 4.0 Internationalinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/4687752026-05-29T05:05:01Z
dc.title.none.fl_str_mv Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
title Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
spellingShingle Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
Kudakwashe Zveushe, Obey
Basal area incremen
Dendroecology
Forest die-off
Radial growth
Leaf nutrients
title_short Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
title_full Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
title_fullStr Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
title_full_unstemmed Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
title_sort Drivers of forest dieback and growth decline in mountain abies fabri forests (Gongga Mountain, SW China)
dc.creator.none.fl_str_mv Kudakwashe Zveushe, Obey
Granda, Elena
Camarero, Jesús Julio
Dong, Faqin
Han, Ying
Resco de Dios, Víctor
author Kudakwashe Zveushe, Obey
author_facet Kudakwashe Zveushe, Obey
Granda, Elena
Camarero, Jesús Julio
Dong, Faqin
Han, Ying
Resco de Dios, Víctor
author_role author
author2 Granda, Elena
Camarero, Jesús Julio
Dong, Faqin
Han, Ying
Resco de Dios, Víctor
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Basal area incremen
Dendroecology
Forest die-off
Radial growth
Leaf nutrients
topic Basal area incremen
Dendroecology
Forest die-off
Radial growth
Leaf nutrients
description Mountains are global biodiversity hotspots but face the danger of habitat loss, especially at lower elevations due to climate-warming-induced forest dieback. In the Gongga Mountains (SW China), Abies fabri trees at 2800 m show increased mortality, yet the causes remain unclear. We assessed climatic influences and bark beetle infestations on tree vigor and radial growth, comparing healthy and declining trees at 2800, 3000, and 3600 m elevations. Leaf nitrogen and phosphorus concentrations were measured to evaluate nutrient status. From 1950 to 2019, mean annual temperatures rose at all elevations, while precipitation decreased at low elevations, negatively correlating with temperature. Such warmer, drier conditions impaired low-elevation trees. The decline in A. fabri growth began in the late 1990s to early 2000s, with an earlier and more pronounced onset at lower elevations. A clear lag is evident, as trees at 3000 m and 3600 m showed either delayed or minimal decline during the same period. High-elevation trees experienced more stable climate and better nutrient availability, supporting greater growth and leaf nitrogen in healthy trees. Bark beetle infestations were worst in declining trees at the highest elevation. Our results reveal that A. fabri vigor shifts along elevation gradients reflect interactions between abiotic and biotic stressors, especially aridification.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/f16081222
https://hdl.handle.net/10459.1/468775
http://hdl.handle.net/10459.1/468775
url https://doi.org/10.3390/f16081222
https://hdl.handle.net/10459.1/468775
http://hdl.handle.net/10459.1/468775
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a https://doi.org/10.3390/f16081222
Forest, 2025, vol. 16, núm. 8, p. 1-21
dc.rights.none.fl_str_mv cc-by (c) Kudakwashe et al., 2025
Attribution 4.0 International
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Kudakwashe et al., 2025
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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