Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina

Autores
Bravo, Sandra; Kunst, Carlos Roberto Guillermo; Leiva, Marta Elisabeth; Ledesma, Roxana
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We assessed the response of seedlings and pole-sized individuals of Aspidosperma quebracho-blanco Schlecht., Schinopsis lorentzii (Griseb.) Engler and Ziziphus mistol Griseb. to surface fires. We assessed traits of fire resistance (bark thickness and bark density) and fire tolerance (mortality and sprouting type, basal or epicormic) in each species. Burns were carried out using two fine fuel loads (high, 8000 kg ha−1; and low 4000 kg ha−1, respectively) and two dates of fire application (early and late fire season). Field work was performed during 2008 and 2009. Using a randomized design, 120 2 m × 2 m plots were burnt each year. Using ANOVA, we tested the effect of species, fuel load and date of fire on the bark char height of the bole. The resprouting pattern (basal or epicormic) and post-fire mortality (complete or top-kill) were analysed using a logistic regression approach. There were a significant effect of species (p < 0.0001), fuel load (p < 0.0001) and of the interaction year of burning *date of fire (p < 0.0001) on the mean char height. A. quebracho-blanco had greater char height than S. lorentzii and Z. mistol (p < 0.05), but differences between the latter two species were no significant. Diameter to breast height (DBH) was significant and positively correlated to char height for A. quebracho-blanco and Z. mistol. High fuel load produced higher char height than the low fuel load fires. A. quebracho-blanco had the greatest total, inner and outer bark thickness, and the lowest bark density among the studied species. It was followed by S. lorentzii, while Z. mistol had the lowest total bark thickness, the highest inner bark proportion and the highest bark density (p < 0.05). The likelihood of complete mortality was significantly larger in Z. mistol than in A. quebracho-blanco and S. lorentzii. Mortality and top-kill were lower in the late season burns (p < 0.05). Sprouting type was significantly affected by species (p < 0.05), DBH, date of fire and by the interactions species × DBH and season of fire × DBH (p < 0.0001). A. quebracho-blanco presented only basal resprouts, while the other two species showed both epicormic and basal resprouts. The two species with greater bark thickness had lower mortality than Z. mistol. Epicormic resprouts were not observed at the more severe late burns. The three species studied showed high resistance and tolerance to medium to high severity fires.
Fil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina
Fil: Kunst, Carlos Roberto Guillermo. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Leiva, Marta Elisabeth. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ledesma, Roxana. Instituto Nacional de Tecnología Agropecuaria; Argentina
Materia
Fire
Charring Height
Carbonization
Woody Species Management
Prescribed Fires
Forest Fires
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/33660

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oai_identifier_str oai:ri.conicet.gov.ar:11336/33660
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network_name_str CONICET Digital (CONICET)
spelling Response of hardwood tree regeneration to surface fires, western Chaco region, ArgentinaBravo, SandraKunst, Carlos Roberto GuillermoLeiva, Marta ElisabethLedesma, RoxanaFireCharring HeightCarbonizationWoody Species ManagementPrescribed FiresForest Fireshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We assessed the response of seedlings and pole-sized individuals of Aspidosperma quebracho-blanco Schlecht., Schinopsis lorentzii (Griseb.) Engler and Ziziphus mistol Griseb. to surface fires. We assessed traits of fire resistance (bark thickness and bark density) and fire tolerance (mortality and sprouting type, basal or epicormic) in each species. Burns were carried out using two fine fuel loads (high, 8000 kg ha−1; and low 4000 kg ha−1, respectively) and two dates of fire application (early and late fire season). Field work was performed during 2008 and 2009. Using a randomized design, 120 2 m × 2 m plots were burnt each year. Using ANOVA, we tested the effect of species, fuel load and date of fire on the bark char height of the bole. The resprouting pattern (basal or epicormic) and post-fire mortality (complete or top-kill) were analysed using a logistic regression approach. There were a significant effect of species (p < 0.0001), fuel load (p < 0.0001) and of the interaction year of burning *date of fire (p < 0.0001) on the mean char height. A. quebracho-blanco had greater char height than S. lorentzii and Z. mistol (p < 0.05), but differences between the latter two species were no significant. Diameter to breast height (DBH) was significant and positively correlated to char height for A. quebracho-blanco and Z. mistol. High fuel load produced higher char height than the low fuel load fires. A. quebracho-blanco had the greatest total, inner and outer bark thickness, and the lowest bark density among the studied species. It was followed by S. lorentzii, while Z. mistol had the lowest total bark thickness, the highest inner bark proportion and the highest bark density (p < 0.05). The likelihood of complete mortality was significantly larger in Z. mistol than in A. quebracho-blanco and S. lorentzii. Mortality and top-kill were lower in the late season burns (p < 0.05). Sprouting type was significantly affected by species (p < 0.05), DBH, date of fire and by the interactions species × DBH and season of fire × DBH (p < 0.0001). A. quebracho-blanco presented only basal resprouts, while the other two species showed both epicormic and basal resprouts. The two species with greater bark thickness had lower mortality than Z. mistol. Epicormic resprouts were not observed at the more severe late burns. The three species studied showed high resistance and tolerance to medium to high severity fires.Fil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; ArgentinaFil: Kunst, Carlos Roberto Guillermo. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Leiva, Marta Elisabeth. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ledesma, Roxana. Instituto Nacional de Tecnología Agropecuaria; ArgentinaElsevier2014-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33660Bravo, Sandra; Ledesma, Roxana; Leiva, Marta Elisabeth; Kunst, Carlos Roberto Guillermo; Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina; Elsevier; Forest Ecology and Management; 326; 0; 5-2014; 36-450378-1127CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112714002345info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.04.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:16Zoai:ri.conicet.gov.ar:11336/33660instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:53:16.487CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
title Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
spellingShingle Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
Bravo, Sandra
Fire
Charring Height
Carbonization
Woody Species Management
Prescribed Fires
Forest Fires
title_short Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
title_full Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
title_fullStr Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
title_full_unstemmed Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
title_sort Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina
dc.creator.none.fl_str_mv Bravo, Sandra
Kunst, Carlos Roberto Guillermo
Leiva, Marta Elisabeth
Ledesma, Roxana
author Bravo, Sandra
author_facet Bravo, Sandra
Kunst, Carlos Roberto Guillermo
Leiva, Marta Elisabeth
Ledesma, Roxana
author_role author
author2 Kunst, Carlos Roberto Guillermo
Leiva, Marta Elisabeth
Ledesma, Roxana
author2_role author
author
author
dc.subject.none.fl_str_mv Fire
Charring Height
Carbonization
Woody Species Management
Prescribed Fires
Forest Fires
topic Fire
Charring Height
Carbonization
Woody Species Management
Prescribed Fires
Forest Fires
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We assessed the response of seedlings and pole-sized individuals of Aspidosperma quebracho-blanco Schlecht., Schinopsis lorentzii (Griseb.) Engler and Ziziphus mistol Griseb. to surface fires. We assessed traits of fire resistance (bark thickness and bark density) and fire tolerance (mortality and sprouting type, basal or epicormic) in each species. Burns were carried out using two fine fuel loads (high, 8000 kg ha−1; and low 4000 kg ha−1, respectively) and two dates of fire application (early and late fire season). Field work was performed during 2008 and 2009. Using a randomized design, 120 2 m × 2 m plots were burnt each year. Using ANOVA, we tested the effect of species, fuel load and date of fire on the bark char height of the bole. The resprouting pattern (basal or epicormic) and post-fire mortality (complete or top-kill) were analysed using a logistic regression approach. There were a significant effect of species (p < 0.0001), fuel load (p < 0.0001) and of the interaction year of burning *date of fire (p < 0.0001) on the mean char height. A. quebracho-blanco had greater char height than S. lorentzii and Z. mistol (p < 0.05), but differences between the latter two species were no significant. Diameter to breast height (DBH) was significant and positively correlated to char height for A. quebracho-blanco and Z. mistol. High fuel load produced higher char height than the low fuel load fires. A. quebracho-blanco had the greatest total, inner and outer bark thickness, and the lowest bark density among the studied species. It was followed by S. lorentzii, while Z. mistol had the lowest total bark thickness, the highest inner bark proportion and the highest bark density (p < 0.05). The likelihood of complete mortality was significantly larger in Z. mistol than in A. quebracho-blanco and S. lorentzii. Mortality and top-kill were lower in the late season burns (p < 0.05). Sprouting type was significantly affected by species (p < 0.05), DBH, date of fire and by the interactions species × DBH and season of fire × DBH (p < 0.0001). A. quebracho-blanco presented only basal resprouts, while the other two species showed both epicormic and basal resprouts. The two species with greater bark thickness had lower mortality than Z. mistol. Epicormic resprouts were not observed at the more severe late burns. The three species studied showed high resistance and tolerance to medium to high severity fires.
Fil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina
Fil: Kunst, Carlos Roberto Guillermo. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Leiva, Marta Elisabeth. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ledesma, Roxana. Instituto Nacional de Tecnología Agropecuaria; Argentina
description We assessed the response of seedlings and pole-sized individuals of Aspidosperma quebracho-blanco Schlecht., Schinopsis lorentzii (Griseb.) Engler and Ziziphus mistol Griseb. to surface fires. We assessed traits of fire resistance (bark thickness and bark density) and fire tolerance (mortality and sprouting type, basal or epicormic) in each species. Burns were carried out using two fine fuel loads (high, 8000 kg ha−1; and low 4000 kg ha−1, respectively) and two dates of fire application (early and late fire season). Field work was performed during 2008 and 2009. Using a randomized design, 120 2 m × 2 m plots were burnt each year. Using ANOVA, we tested the effect of species, fuel load and date of fire on the bark char height of the bole. The resprouting pattern (basal or epicormic) and post-fire mortality (complete or top-kill) were analysed using a logistic regression approach. There were a significant effect of species (p < 0.0001), fuel load (p < 0.0001) and of the interaction year of burning *date of fire (p < 0.0001) on the mean char height. A. quebracho-blanco had greater char height than S. lorentzii and Z. mistol (p < 0.05), but differences between the latter two species were no significant. Diameter to breast height (DBH) was significant and positively correlated to char height for A. quebracho-blanco and Z. mistol. High fuel load produced higher char height than the low fuel load fires. A. quebracho-blanco had the greatest total, inner and outer bark thickness, and the lowest bark density among the studied species. It was followed by S. lorentzii, while Z. mistol had the lowest total bark thickness, the highest inner bark proportion and the highest bark density (p < 0.05). The likelihood of complete mortality was significantly larger in Z. mistol than in A. quebracho-blanco and S. lorentzii. Mortality and top-kill were lower in the late season burns (p < 0.05). Sprouting type was significantly affected by species (p < 0.05), DBH, date of fire and by the interactions species × DBH and season of fire × DBH (p < 0.0001). A. quebracho-blanco presented only basal resprouts, while the other two species showed both epicormic and basal resprouts. The two species with greater bark thickness had lower mortality than Z. mistol. Epicormic resprouts were not observed at the more severe late burns. The three species studied showed high resistance and tolerance to medium to high severity fires.
publishDate 2014
dc.date.none.fl_str_mv 2014-05
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/11336/33660
Bravo, Sandra; Ledesma, Roxana; Leiva, Marta Elisabeth; Kunst, Carlos Roberto Guillermo; Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina; Elsevier; Forest Ecology and Management; 326; 0; 5-2014; 36-45
0378-1127
CONICET Digital
CONICET
url http://hdl.handle.net/11336/33660
identifier_str_mv Bravo, Sandra; Ledesma, Roxana; Leiva, Marta Elisabeth; Kunst, Carlos Roberto Guillermo; Response of hardwood tree regeneration to surface fires, western Chaco region, Argentina; Elsevier; Forest Ecology and Management; 326; 0; 5-2014; 36-45
0378-1127
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112714002345
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.04.009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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