Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests
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 positiv...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Springer
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/10275 https://link.springer.com/article/10.1007/s13595-013-0343-3 https://doi.org/10.1007/s13595-013-0343-3 |
| _version_ | 1855484558839906304 |
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| author | Martínez Pastur, Guillermo José Soler Esteban, Rosina Matilde Cellini, Juan Manuel Lencinas, María Vanessa Peri, Pablo Luis Neyland, Mark Geoffrey |
| author_browse | Cellini, Juan Manuel Lencinas, María Vanessa Martínez Pastur, Guillermo José Neyland, Mark Geoffrey Peri, Pablo Luis Soler Esteban, Rosina Matilde |
| author_facet | Martínez Pastur, Guillermo José Soler Esteban, Rosina Matilde Cellini, Juan Manuel Lencinas, María Vanessa Peri, Pablo Luis Neyland, Mark Geoffrey |
| author_sort | Martínez Pastur, Guillermo José |
| collection | INTA Digital |
| description | 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 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. |
| format | Artículo |
| id | INTA10275 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA102752021-09-16T12:23:23Z Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests Martínez Pastur, Guillermo José Soler Esteban, Rosina Matilde Cellini, Juan Manuel Lencinas, María Vanessa Peri, Pablo Luis Neyland, Mark Geoffrey Primary Forest Bosque Primario Nothofagus pumilio Plántulas Regeneración Regímenes de Luz Biodiversidad Conservación Cosecha Muestreo Sistemas Silvícolas Contenido de Agua en el Suelo Propiedades del Suelo Seedlings Regeneration Ligth Regimes Biodiversity Conservation Harvesting Sampling Silvicultural Systems Soil Water Content Soil Properties Forest Structure Estructura Forestal Región Patagónica 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 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. EEA Santa Cruz Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Cellini, Juan Manuel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Maderas; Argentina. Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Neyland, Mark Geoffrey. Forestry Tasmania; Australia. 2021-09-16T12:12:27Z 2021-09-16T12:12:27Z 2014-05-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10275 https://link.springer.com/article/10.1007/s13595-013-0343-3 Pastur, G.J.M., Esteban, R.S., Cellini, J.M. et al. Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests. Annals of Forest Science 71, 349–362 (2014). https://doi.org/10.1007/s13595-013-0343-3 1286-4560 1297-966X https://doi.org/10.1007/s13595-013-0343-3 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Annals of Forest Science 71 (3) : 349-362. (2014) |
| spellingShingle | Primary Forest Bosque Primario Nothofagus pumilio Plántulas Regeneración Regímenes de Luz Biodiversidad Conservación Cosecha Muestreo Sistemas Silvícolas Contenido de Agua en el Suelo Propiedades del Suelo Seedlings Regeneration Ligth Regimes Biodiversity Conservation Harvesting Sampling Silvicultural Systems Soil Water Content Soil Properties Forest Structure Estructura Forestal Región Patagónica Martínez Pastur, Guillermo José Soler Esteban, Rosina Matilde Cellini, Juan Manuel Lencinas, María Vanessa Peri, Pablo Luis Neyland, Mark Geoffrey Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title | Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title_full | Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title_fullStr | Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title_full_unstemmed | Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title_short | Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests |
| title_sort | survival and growth of nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern patagonian forests |
| topic | Primary Forest Bosque Primario Nothofagus pumilio Plántulas Regeneración Regímenes de Luz Biodiversidad Conservación Cosecha Muestreo Sistemas Silvícolas Contenido de Agua en el Suelo Propiedades del Suelo Seedlings Regeneration Ligth Regimes Biodiversity Conservation Harvesting Sampling Silvicultural Systems Soil Water Content Soil Properties Forest Structure Estructura Forestal Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/10275 https://link.springer.com/article/10.1007/s13595-013-0343-3 https://doi.org/10.1007/s13595-013-0343-3 |
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