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dc.contributor.author
Busso, Carlos Alberto
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dc.contributor.author
Montenegro, Oscar Alberto
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dc.contributor.author
Torres, Yanina Alejandra
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dc.contributor.author
Giorgetti, Hugo Dosindo
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dc.contributor.author
Rodriguez, Gustavo Dionisio
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dc.date.available
2017-10-09T14:43:10Z
dc.date.issued
2016-06
dc.identifier.citation
Busso, Carlos Alberto; Montenegro, Oscar Alberto; Torres, Yanina Alejandra; Giorgetti, Hugo Dosindo; Rodriguez, Gustavo Dionisio; The influence of disturbance type on precipitation-use efficiency at the functional group and species scales in an arid habitat; Polish Acad Sciences Inst Ecology; Polish Journal Of Ecology; 64; 2; 6-2016; 143-164
dc.identifier.issn
1505-2249
dc.identifier.uri
http://hdl.handle.net/11336/26212
dc.description.abstract
We used long-term datasets (1984−1992) to contrast precipitation-use efficiency estimates between various disturbance kinds at a functional group and/or a species scale. Effects of varying amounts of precipitation and plant cover on PUE were also examined. Field studies were conducted at northeastern, arid Patagonia, Argentina (40°39′49″S, 62°53′6.4″W). Within each management kind, biomass was sampled in 0.5 × 0.5m permanent plots (n = 30) over 9 years after defoliation at 5 cm stubble at the end of each growing season, and it was separated into species. Biomass sampling allowed determination of annual net primary production. Thereafter, species were grouped into each of three functional groups. Precipitation-use efficiency (PUE) was calculated as the total dry matter produced per unit surface area on any given year divided by the total rainfall in that year. Plant cover on 20 out of those 30 plots was determined to study the relationship between plant cover and PUE. The contribution of cool-season perennial grasses to total PUE was higher (P <0.05) than that found for the other two functional groups in all management kinds and years. PUE was similar (P> 0.05) in wet than dry years, and it was greater (P <0.05) or similar (P> 0.05), but not lower, on the more than less competitive perennial grass species in all management kinds. The relationship between plant cover and PUE was positive, linear (P <0.0000) and management-kind dependent.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Polish Acad Sciences Inst Ecology
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Precipitation-Use Efficiency
dc.subject
Late- And Early-Seral Plant Species
dc.subject
Arid Zones
dc.subject
Burning
dc.subject
Old Fields
dc.subject
Overgrazing
dc.subject
Inter-Annual Variability
dc.subject.classification
Otras Agricultura, Silvicultura y Pesca
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
The influence of disturbance type on precipitation-use efficiency at the functional group and species scales in an arid habitat
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-27T12:25:52Z
dc.journal.volume
64
dc.journal.number
2
dc.journal.pagination
143-164
dc.journal.pais
Polonia
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dc.description.fil
Fil: Busso, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina
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Fil: Montenegro, Oscar Alberto. Provincia de Buenos Aires. Ministerio de Asuntos Agrarios. Chacra Experimental de Patagones; Argentina
dc.description.fil
Fil: Torres, Yanina Alejandra. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.description.fil
Fil: Giorgetti, Hugo Dosindo. Provincia de Buenos Aires. Ministerio de Asuntos Agrarios. Chacra Experimental de Patagones; Argentina
dc.description.fil
Fil: Rodriguez, Gustavo Dionisio. Provincia de Buenos Aires. Ministerio de Asuntos Agrarios. Chacra Experimental de Patagones; Argentina
dc.journal.title
Polish Journal Of Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3161/15052249PJE2016.64.2.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.3161/15052249PJE2016.64.2.001
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