Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets

Many studies have outlined the benefits for growth and reproduction resulting from thinning extremely crowded young forests regenerating after stand replacing wildfires ("thickets"). However, scarce information is available on how thinning may influence fire severity and vegetation regener...

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Autores: García-Jiménez, Ruth, Palmero Iniesta, Marina|||0000-0002-4183-6483, Espelta Morral, Josep Maria|||0000-0002-0242-4988
Formato: artículo
Fecha de publicación:2017
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:174865
Acesso em linha:https://ddd.uab.cat/record/174865
https://dx.doi.org/urn:doi:10.3390/f8030055
Access Level:acceso abierto
Palavra-chave:Fire severity
Mediterranean forests
Pinus halepensis
Post-fire regeneration
Seed bank
Selective thinning
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spelling Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thicketsGarcía-Jiménez, RuthPalmero Iniesta, Marina|||0000-0002-4183-6483Espelta Morral, Josep Maria|||0000-0002-0242-4988Fire severityMediterranean forestsPinus halepensisPost-fire regenerationSeed bankSelective thinningMany studies have outlined the benefits for growth and reproduction resulting from thinning extremely crowded young forests regenerating after stand replacing wildfires ("thickets"). However, scarce information is available on how thinning may influence fire severity and vegetation regeneration in case a new fire occurs. We investigated the relationship between thinning and fire severity in P. halepensis thickets, and the effects on the establishment of pine seedlings and resprouting vigour in resprouter species the year after the fire. Our results show a positive relationship between forest basal area and fire severity, and thus reserved pines in thinned stands suffered less fire damage than those in un-thinned sites (respectively, 2.02 ± 0.13 vs. 2.93 ± 0.15 in a scale from 0 to 4). Ultimately, differences in fire severity influenced post-fire regeneration. Resprouting vigour varied depending on the species and the size of individuals but it was consistently higher in thinned stands. Concerning P. halepensis, the proportion of cones surviving the fire decreased with fire severity. However, this could not compensate the much lower pine density in thinned stands and thus the overall seed crop was higher in un-thinned areas. Establishment of pine seedlings was negatively affected by the slope and positively driven by the number of cones and thus it was higher in un-thinned than in thinned stands (respectively, 2581 ± 649 vs. 898 ± 325 seedlings∙ha-1). Thinning decreases fire intensity, and thus it may facilitate fire suppression tasks, but retaining a higher density of pines would be necessary to ensure P. halepensis regeneration after a new fire event 22017-01-0120172017-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/174865https://dx.doi.org/urn:doi:10.3390/f8030055reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 LIFE13/BIO/ES/000094Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-913open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1748652026-06-06T12:50:31Z
dc.title.none.fl_str_mv Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
title Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
spellingShingle Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
García-Jiménez, Ruth
Fire severity
Mediterranean forests
Pinus halepensis
Post-fire regeneration
Seed bank
Selective thinning
title_short Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
title_full Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
title_fullStr Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
title_full_unstemmed Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
title_sort Contrasting effects of fire severity on the regeneration of Pinus halepensis Mill. and resprouter species in recently thinned thickets
dc.creator.none.fl_str_mv García-Jiménez, Ruth
Palmero Iniesta, Marina|||0000-0002-4183-6483
Espelta Morral, Josep Maria|||0000-0002-0242-4988
author García-Jiménez, Ruth
author_facet García-Jiménez, Ruth
Palmero Iniesta, Marina|||0000-0002-4183-6483
Espelta Morral, Josep Maria|||0000-0002-0242-4988
author_role author
author2 Palmero Iniesta, Marina|||0000-0002-4183-6483
Espelta Morral, Josep Maria|||0000-0002-0242-4988
author2_role author
author
dc.subject.none.fl_str_mv Fire severity
Mediterranean forests
Pinus halepensis
Post-fire regeneration
Seed bank
Selective thinning
topic Fire severity
Mediterranean forests
Pinus halepensis
Post-fire regeneration
Seed bank
Selective thinning
description Many studies have outlined the benefits for growth and reproduction resulting from thinning extremely crowded young forests regenerating after stand replacing wildfires ("thickets"). However, scarce information is available on how thinning may influence fire severity and vegetation regeneration in case a new fire occurs. We investigated the relationship between thinning and fire severity in P. halepensis thickets, and the effects on the establishment of pine seedlings and resprouting vigour in resprouter species the year after the fire. Our results show a positive relationship between forest basal area and fire severity, and thus reserved pines in thinned stands suffered less fire damage than those in un-thinned sites (respectively, 2.02 ± 0.13 vs. 2.93 ± 0.15 in a scale from 0 to 4). Ultimately, differences in fire severity influenced post-fire regeneration. Resprouting vigour varied depending on the species and the size of individuals but it was consistently higher in thinned stands. Concerning P. halepensis, the proportion of cones surviving the fire decreased with fire severity. However, this could not compensate the much lower pine density in thinned stands and thus the overall seed crop was higher in un-thinned areas. Establishment of pine seedlings was negatively affected by the slope and positively driven by the number of cones and thus it was higher in un-thinned than in thinned stands (respectively, 2581 ± 649 vs. 898 ± 325 seedlings∙ha-1). Thinning decreases fire intensity, and thus it may facilitate fire suppression tasks, but retaining a higher density of pines would be necessary to ensure P. halepensis regeneration after a new fire event
publishDate 2017
dc.date.none.fl_str_mv 2
2017-01-01
2017
2017-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/174865
https://dx.doi.org/urn:doi:10.3390/f8030055
url https://ddd.uab.cat/record/174865
https://dx.doi.org/urn:doi:10.3390/f8030055
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 LIFE13/BIO/ES/000094
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-913
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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