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Context: Variable retention prescriptions for Nothofagus pumilio forests provide for biodiversity conservation and natural regeneration by controlled opening of the canopy. Harvesting generates different microenvironments which present dissimilar conditions for seedling establishment, due to positive or negative influences over biotic and abiotic factors. Aims: This study evaluated seedling survival and performance in different microenvironments [ver mas...]
dc.contributor.authorMartínez Pastur, Guillermo José
dc.contributor.authorSoler Esteban, Rosina Matilde
dc.contributor.authorCellini, Juan Manuel
dc.contributor.authorLencinas, María Vanessa
dc.contributor.authorPeri, Pablo Luis
dc.contributor.authorNeyland, Mark Geoffrey
dc.date.accessioned2018-08-28T12:06:34Z
dc.date.available2018-08-28T12:06:34Z
dc.date.issued2014
dc.identifier.issn1286-4560
dc.identifier.issn1297-966X (Online)
dc.identifier.otherhttps://doi.org/10.1007/s13595-013-0343-3
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3202
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs13595-013-0343-3#citeas
dc.description.abstractContext: Variable retention prescriptions for Nothofagus pumilio forests provide for biodiversity conservation and natural regeneration by controlled opening of the canopy. Harvesting generates different microenvironments which present dissimilar conditions for seedling establishment, due to positive or negative influences over biotic and abiotic factors. Aims: This study evaluated seedling survival and performance in different microenvironments within the harvested stands. Tested hypotheses stated that seedling stress and performance were influenced by harvesting due to changes in forest structure, microclimate, soil properties, and nutrient availability. Methods: In the stands harvested by variable retention, five contrasting microenvironments were selected as treatments for the experiments and sampling. Environmental variables were related to ecophysiological, seedling survival, and performance. Results: The modification of forest structure (crown cover and tree density) and the presence of coarse woody debris greatly affect the effective rainfall and global radiation reaching understorey level, influencing seedling stress and consequently survival and performance. Harvesting also modifies soil properties (e.g., soil bulk density) and coarse woody debris accumulation which in turn influences soil moisture and/or solar radiation levels. Analyses showed that seedlings received benefits of microenvironment variation after harvesting. Areas covered with middle or fine woody debris presented regeneration with better ecophysiological response and seedling performance, although dispersed retention areas (far away from remnant trees) and roads could also present suitable conditions for seedling survival and performance. Conclusions: The proportion of different microenvironments in the harvested forests will determine the amount of natural recruitment of regeneration and consequently the success of proposed silvicultural management. Forest practices must be manipulated to increase the proportion of favorable microenvironments (e.g., woody debris), allowing greater natural regeneration success during the first years after harvesting.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherINRA : Springereng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceAnnals of forest science 71 (3) : 349–362. (May 2014)eng
dc.subjectNothofagus Pumilioes_AR
dc.subjectPlántulases_AR
dc.subjectSeedlingseng
dc.subjectSupervivenciaes_AR
dc.subjectSurvivaleng
dc.subjectSoil Water Contenteng
dc.subjectSoil Propertieseng
dc.subjectSueloes_AR
dc.subject.otherAggregated Retentioneng
dc.subject.otherDispersed Retentioneng
dc.subject.otherMicroenvironmentseng
dc.subject.otherMicroambienteses_AR
dc.subject.otherLight Availabilityeng
dc.subject.otherDisponibilidad de Luzes_AR
dc.titleSurvival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forestseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Santa Cruzes_AR
dc.description.filFil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas. Laboratorio de Recursos Agroforestales; Argentinaes_AR
dc.description.filFil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas. Laboratorio de Recursos Agroforestales; Argentinaes_AR
dc.description.filFil: Cellini, Juan Manuel. Universidad Nacional de La Plata. Laboratorio de Investigación de Sistemas Ecológicos; Argentinaes_AR
dc.description.filFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas. Laboratorio de Recursos Agroforestales; Argentinaes_AR
dc.description.filFil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Neyland, Mark Geoffrey. Forestry Tasmania; Australiaes_AR
dc.subtypecientifico


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