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dc.contributor.author
Ledesma, R.  
dc.contributor.author
Kunst, C.  
dc.contributor.author
Bravo, Sandra  
dc.contributor.author
Leiva, Marta Elisabeth  
dc.contributor.author
Lorea, L.  
dc.contributor.author
Godoy, J.  
dc.contributor.author
Navarrete, V.  
dc.date.available
2020-02-13T18:09:17Z  
dc.date.issued
2018-07  
dc.identifier.citation
Ledesma, R.; Kunst, C.; Bravo, Sandra; Leiva, Marta Elisabeth; Lorea, L.; et al.; Developing a prescription for brush control in the Chaco region, effects of combined treatments on the canopy of three native shrub species; Taylor & Francis; Arid Land Research And Management; 32; 3; 7-2018; 351-366  
dc.identifier.issn
1532-4982  
dc.identifier.uri
http://hdl.handle.net/11336/97430  
dc.description.abstract
Shrub encroachment is frequent in grazing lands in the Chaco region, Argentina. Fire is used by cattlemen to reduce the dominance of the shrub stands, improve forage standing biomass and quality, and enhance grazing accessibility. In this research, we assessed the combined effect of roller chopping + fire on the plant canopy of three native shrub species, Acacia gilliessi, Celtis ehrenbergiana, and Schinus bumelioides. We used a randomized design, with three factors, year, burn dates, and fine fuel load. Before the burn, the area received a roller-chopping treatment. Canopy volume reduction was assessed using, DifV = −1*(Vi − Va) and DifS = −1*(Si − Sa), respectively, where V = plant volume and S = sprout number. Suffixes i and a represent measurements taken before the roller-chopping treatment and one growth season after the fire, respectively. Fire intensity, headfire residence time, woody residues, and initial plant volume were evaluated as covariates. Results indicate a negative fire effect on canopy volume and sprouting. A. gilliesi was more susceptible to fire than the other two species. High fine fuel load and high fire intensity generated a severe effect on sprout number. The same trend was observed for coarse fuels. The canopy volume reduction was greater in A. gilliesi than the other species, reaffirming its high susceptibility to fire. Head fires were faster in 2009 than in 2008 and in the late than in the early burn dates. These results suggest that mechanical + fire treatments can be useful management tools for controlling shrub encroachment in the western Chaco.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Taylor & Francis  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
FIRE INTENSITY  
dc.subject
FUEL LOAD  
dc.subject
ROLLER CHOPPING  
dc.subject
SPROUTING SHRUBS  
dc.subject.classification
Otras Ciencias Agrícolas  
dc.subject.classification
Otras Ciencias Agrícolas  
dc.subject.classification
CIENCIAS AGRÍCOLAS  
dc.title
Developing a prescription for brush control in the Chaco region, effects of combined treatments on the canopy of three native shrub species  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-12-20T22:53:02Z  
dc.identifier.eissn
1532-4990  
dc.journal.volume
32  
dc.journal.number
3  
dc.journal.pagination
351-366  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Ledesma, R.. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Kunst, C.. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Bravo, Sandra. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Leiva, Marta Elisabeth. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Lorea, L.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires; Argentina  
dc.description.fil
Fil: Godoy, J.. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Navarrete, V.. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.journal.title
Arid Land Research And Management  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/15324982.2018.1430072  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/15324982.2018.1430072