Mostrar el registro sencillo del ítem
dc.contributor.author
Busso, Carlos Alberto
dc.contributor.author
Bonvissuto, Griselda Luz
dc.date.available
2017-10-10T18:25:26Z
dc.date.issued
2009-09
dc.identifier.citation
Busso, Carlos Alberto; Bonvissuto, Griselda Luz; Structure of vegetation patches in northwestern Patagonia, Argentina; Springer; Biodiversity And Conservation; 18; 11; 9-2009; 3017-3041
dc.identifier.issn
0960-3115
dc.identifier.uri
http://hdl.handle.net/11336/26414
dc.description.abstract
Vegetation of arid and semiarid environments has in general a patchy distribution. Our objective was to (a) determine several qualitative and quantitative analytical characteristics of vegetation patches in an arid zone of Patagonia, Argentina, and (b) investigate relationships between them. Annual precipitation in this area was 200mm during 1999?2005. Eight transects involving ten patches each were studied within a 15×15km area. Mean (±1 SE) values (n=80) in the vegetation patches were 315±25 and 207±16cm for the greatest and lowest patch diameter, respectively; 23±2cm for mound height; 113±12cm for maximum vegetation height; and 170±18cm and 58±2% for distance to the next vegetation patch and vegetation patch cover within a transect, respectively. Correlations between greatest and lowest diameters, mound height, maximum plant height and distance to the closest vegetation patch were all significant (P<0.01; n=80). In all vegetation patches, the greatest and lowest frequencies were found for the grass Stipa spp. (71.2%) and the shrub Grindelia chiloensis (Cornel.) Cabrera (12.5%). Stipa spp. and the shrub Atriplex lampa (Moq.) D. Dietr. showed the highest simultaneous frequency (50%). A reasonable association among species (>45%) was found for Stipa spp., Atriplex lampa and the shrubs Larrea divaricata Cav., Lycium chilense Miers ex Bertero and Junellia ligustrina (Lag.) Moldenke. Larrea divaricata and Atriplex lampa contributed more than 84% of the total patch standing crop (5,777±435g). Average patch size and specific diversity were 5.93±0.33m2 and 1.31±0.11, respectively. Aboveground standing crop of the two dominant shrubs decreased as plant species diversity increased (P<0.05). Conservation of vegetation patches is crucial to prevent increased soil erosion and desertification in the study ecological system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Arid And Semiarid Lands
dc.subject
Perennial Grasses And Shrubs
dc.subject
Qualitative And Quantitative Analytical Plant Characteristics
dc.subject
Regression Analysis
dc.subject.classification
Otras Agricultura, Silvicultura y Pesca
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Structure of vegetation patches in northwestern Patagonia, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-10-09T15:30:35Z
dc.journal.volume
18
dc.journal.number
11
dc.journal.pagination
3017-3041
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
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 Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
dc.description.fil
Fil: Bonvissuto, Griselda Luz. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina
dc.journal.title
Biodiversity And Conservation
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10531-009-9622-6
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10531-009-9622-6
Archivos asociados