Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests
Introduction Silviculture systems applied in Nothofagus pumilio forests are based on opening the canopy to stimulate natural regeneration by modifying light and soil moisture. The objective is to evaluate regeneration dynamics of N. pumilio along different forest canopy and solar radiation gradients...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Springer
2022
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/12767 https://link.springer.com/article/10.1007/s13595-011-0059-1 https://doi.org/10.1007/s13595-011-0059-1 |
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| author | Martínez Pastur, Guillermo José Peri, Pablo Luis Cellini, Juan Manuel Lencinas, María Vanessa Barrera, Marcelo Daniel Ivancich, Horacio Simón |
| author_browse | Barrera, Marcelo Daniel Cellini, Juan Manuel Ivancich, Horacio Simón Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis |
| author_facet | Martínez Pastur, Guillermo José Peri, Pablo Luis Cellini, Juan Manuel Lencinas, María Vanessa Barrera, Marcelo Daniel Ivancich, Horacio Simón |
| author_sort | Martínez Pastur, Guillermo José |
| collection | INTA Digital |
| description | Introduction Silviculture systems applied in Nothofagus pumilio forests are based on opening the canopy to stimulate natural regeneration by modifying light and soil moisture. The objective is to evaluate regeneration dynamics of N. pumilio along different forest canopy and solar radiation gradients. Materials and methods Regeneration data and seed production were obtained in 98 permanent plots established in old-growth and harvested stands along a crown cover gradient (19–93%). Volumetric soil water content and basal area were also measured, while crown cover and solar radiation transmission were estimated using hemispherical
photographs. Sapling height was modeled using plant age, crown cover, and solar radiation transmission of the stands as explanatory variables. Results Natural regeneration dynamics were closely related to crown cover values, which determined seed production and the successful establishment and subsequent regeneration growth. Height growth was found to be related to crown cover and solar radiation transmission, where N. pumilio regeneration is optimized at intermediate crown cover levels (45% crown cover, 0.5 effective leaf area index, 26 W m2 global radiation, and 65% percentage of global radiation). Conclusion These findings can be used to develop new silvicultural methods or to adjust the current practices to ensure regeneration establishment and maximize height growth at the stand level. |
| format | Artículo |
| id | INTA12767 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA127672022-09-02T11:49:20Z Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests Martínez Pastur, Guillermo José Peri, Pablo Luis Cellini, Juan Manuel Lencinas, María Vanessa Barrera, Marcelo Daniel Ivancich, Horacio Simón Primary Forests Silviculture Regeneration Light Regimes Soil Water Content Bosque Primario Silvicultura Regeneración Regímenes de Luz Contenido de Agua en el Suelo Nothofagus pumilio Tierra del Fuego (Argentina) Hemispherical photographs Fotografias Hemisféricas Región Patagónica Introduction Silviculture systems applied in Nothofagus pumilio forests are based on opening the canopy to stimulate natural regeneration by modifying light and soil moisture. The objective is to evaluate regeneration dynamics of N. pumilio along different forest canopy and solar radiation gradients. Materials and methods Regeneration data and seed production were obtained in 98 permanent plots established in old-growth and harvested stands along a crown cover gradient (19–93%). Volumetric soil water content and basal area were also measured, while crown cover and solar radiation transmission were estimated using hemispherical photographs. Sapling height was modeled using plant age, crown cover, and solar radiation transmission of the stands as explanatory variables. Results Natural regeneration dynamics were closely related to crown cover values, which determined seed production and the successful establishment and subsequent regeneration growth. Height growth was found to be related to crown cover and solar radiation transmission, where N. pumilio regeneration is optimized at intermediate crown cover levels (45% crown cover, 0.5 effective leaf area index, 26 W m2 global radiation, and 65% percentage of global radiation). Conclusion These findings can be used to develop new silvicultural methods or to adjust the current practices to ensure regeneration establishment and maximize height growth at the stand level. EEA Santa Cruz Fil: Martínez Pastur, Guillermo José. 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: 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: Barrera, Marcelo Daniel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Maderas; Argentina. Fil: Ivancich, Horacio Simón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. 2022-09-02T11:34:54Z 2022-09-02T11:34:54Z 2011-04-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12767 https://link.springer.com/article/10.1007/s13595-011-0059-1 Martínez Pastur G.; Peri P.L.; Cellini J.M.; Lencinas M.V.; Barrera M.; Ivancich H. (2011) Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests. Annals of Forest Sciences 68: 587-594. 1297-966X https://doi.org/10.1007/s13595-011-0059-1 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Annals of Forest Sciences 68 : 587-594. (April 2011) |
| spellingShingle | Primary Forests Silviculture Regeneration Light Regimes Soil Water Content Bosque Primario Silvicultura Regeneración Regímenes de Luz Contenido de Agua en el Suelo Nothofagus pumilio Tierra del Fuego (Argentina) Hemispherical photographs Fotografias Hemisféricas Región Patagónica Martínez Pastur, Guillermo José Peri, Pablo Luis Cellini, Juan Manuel Lencinas, María Vanessa Barrera, Marcelo Daniel Ivancich, Horacio Simón Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title | Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title_full | Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title_fullStr | Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title_full_unstemmed | Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title_short | Canopy structure analysis for estimating forest regeneration dynamics and growth in Nothofagus pumilio forests |
| title_sort | canopy structure analysis for estimating forest regeneration dynamics and growth in nothofagus pumilio forests |
| topic | Primary Forests Silviculture Regeneration Light Regimes Soil Water Content Bosque Primario Silvicultura Regeneración Regímenes de Luz Contenido de Agua en el Suelo Nothofagus pumilio Tierra del Fuego (Argentina) Hemispherical photographs Fotografias Hemisféricas Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/12767 https://link.springer.com/article/10.1007/s13595-011-0059-1 https://doi.org/10.1007/s13595-011-0059-1 |
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