Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego
Regeneration is crucial for forest continuity in natural and managed stands. Analyzing intra-annual dynamics can improve the understanding between growth and climate, identifying regeneration survival thresholds. The objective of this study was to determine the microclimate constraints (rainfall, ai...
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| Format: | Artículo |
| Language: | Inglés |
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MDPI
2023
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| Online Access: | http://hdl.handle.net/20.500.12123/16031 https://www.mdpi.com/2071-1050/15/11/8687 https://doi.org/10.3390/su15118687 |
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| author | Martínez Pastur, Guillermo José Rodríguez‑Souilla, Julián Lencinas, María Vanessa Cellini, Juan Manuel Chaves, Jimena Elizabeth Aravena Acuña, Marie Claire Peri, Pablo Luis Roig Junent, Fidel Alejandro |
| author_browse | Aravena Acuña, Marie Claire Cellini, Juan Manuel Chaves, Jimena Elizabeth Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis Rodríguez‑Souilla, Julián Roig Junent, Fidel Alejandro |
| author_facet | Martínez Pastur, Guillermo José Rodríguez‑Souilla, Julián Lencinas, María Vanessa Cellini, Juan Manuel Chaves, Jimena Elizabeth Aravena Acuña, Marie Claire Peri, Pablo Luis Roig Junent, Fidel Alejandro |
| author_sort | Martínez Pastur, Guillermo José |
| collection | INTA Digital |
| description | Regeneration is crucial for forest continuity in natural and managed stands. Analyzing intra-annual dynamics can improve the understanding between growth and climate, identifying regeneration survival thresholds. The objective of this study was to determine the microclimate constraints (rainfall, air, and soil temperatures) of Nothofagus antarctica regeneration growth in closed,
open, and edge forests in Southern Patagonia. We measured stand characteristics (forest structure, understory plants, soil properties, animal use), microclimate, and the daily growth of regeneration using dendrometers (n = 6) during two growing seasons. We found significant differences in the studied variables (e.g., overstory, light, soil, understory plants, animal use) in the following order:
closed primary forests > open forests > edge forests with openlands. These changes defined the microclimate across the overstory gradient (e.g., soil moisture), influencing the daily growth of regeneration across the growing season (lag, exponential, stationary). Rainfall (the F factor varied from 6.93 to 21.03) influenced more than temperature (the F factor varied from 0.03 to 0.34). Daily
growth in closed forests indicated shrinkage (−0.0082 mm day−1 without rain and −0.0008 mm day−1 with 0.0–0.2 mm day−1 rainfall), while for more than 0.2 mm day−1 of rainfall, growth always increased. Open forests presented shrinkage during days without rain (−0.0051 mm day−1), showing positive growth according to rainfall. Edge forests always presented positive daily growth. The resilience of regeneration under these changed conditions was directly related to the overstory. The main outputs indicated that regeneration was vulnerable during non-rainy days at the middle or closed overstory (>40% crown cover), suggesting the need for long-term monitoring to develop better silvicultural proposals. |
| format | Artículo |
| id | INTA16031 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA160312023-11-28T11:09:57Z Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego Martínez Pastur, Guillermo José Rodríguez‑Souilla, Julián Lencinas, María Vanessa Cellini, Juan Manuel Chaves, Jimena Elizabeth Aravena Acuña, Marie Claire Peri, Pablo Luis Roig Junent, Fidel Alejandro Silvopastoral Systems Regeneration (biological) Dendrochronology Microclimate Soil Water Content Sistemas Silvopastoriles Regeneración Dendrocronología Microclima Contenido de Agua en el Suelo Nothofagus Tierra del Fuego Daily Stem Dynamics Dendrometers Dinámica Diaria del Tallo Dendrómetros Ñire Región Patagónica Regeneration is crucial for forest continuity in natural and managed stands. Analyzing intra-annual dynamics can improve the understanding between growth and climate, identifying regeneration survival thresholds. The objective of this study was to determine the microclimate constraints (rainfall, air, and soil temperatures) of Nothofagus antarctica regeneration growth in closed, open, and edge forests in Southern Patagonia. We measured stand characteristics (forest structure, understory plants, soil properties, animal use), microclimate, and the daily growth of regeneration using dendrometers (n = 6) during two growing seasons. We found significant differences in the studied variables (e.g., overstory, light, soil, understory plants, animal use) in the following order: closed primary forests > open forests > edge forests with openlands. These changes defined the microclimate across the overstory gradient (e.g., soil moisture), influencing the daily growth of regeneration across the growing season (lag, exponential, stationary). Rainfall (the F factor varied from 6.93 to 21.03) influenced more than temperature (the F factor varied from 0.03 to 0.34). Daily growth in closed forests indicated shrinkage (−0.0082 mm day−1 without rain and −0.0008 mm day−1 with 0.0–0.2 mm day−1 rainfall), while for more than 0.2 mm day−1 of rainfall, growth always increased. Open forests presented shrinkage during days without rain (−0.0051 mm day−1), showing positive growth according to rainfall. Edge forests always presented positive daily growth. The resilience of regeneration under these changed conditions was directly related to the overstory. The main outputs indicated that regeneration was vulnerable during non-rainy days at the middle or closed overstory (>40% crown cover), suggesting the need for long-term monitoring to develop better silvicultural proposals. EEA Santa Cruz Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Rodríguez‑Souilla, Julián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Lencinas, María Vanessa. 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: Chaves, Jimena Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Aravena Acuña, Marie Claire. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC). Laboratorio de Recursos Agroforestales; 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 (UNPA); Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Roig Junent, Fidel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina. Fil: Roig Junent, Fidel Alejandro. Universidad Mayor. Hémera Centro de Observación de la Tierra; Chile. 2023-11-28T11:03:43Z 2023-11-28T11:03:43Z 2023-05-27 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16031 https://www.mdpi.com/2071-1050/15/11/8687 Martínez Pastur G.; Rodríguez-Souilla J.; Lencinas M.V.; Cellini J.M.; Chaves J.E.; Aravena Acuña M.C.; Peri P.L.; Roig F.A. (2023) Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego. Sustainability 15(11): 8687. https://doi.org/10.3390/su15118687 2071-1050 https://doi.org/10.3390/su15118687 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Sustainability 15 (11) : 8687 (May 2023) |
| spellingShingle | Silvopastoral Systems Regeneration (biological) Dendrochronology Microclimate Soil Water Content Sistemas Silvopastoriles Regeneración Dendrocronología Microclima Contenido de Agua en el Suelo Nothofagus Tierra del Fuego Daily Stem Dynamics Dendrometers Dinámica Diaria del Tallo Dendrómetros Ñire Región Patagónica Martínez Pastur, Guillermo José Rodríguez‑Souilla, Julián Lencinas, María Vanessa Cellini, Juan Manuel Chaves, Jimena Elizabeth Aravena Acuña, Marie Claire Peri, Pablo Luis Roig Junent, Fidel Alejandro Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title | Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title_full | Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title_fullStr | Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title_full_unstemmed | Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title_short | Microclimatic conditions restrict the radial growth of Nothofagus antarctica regeneration based on the type of forest environment in Tierra del Fuego |
| title_sort | microclimatic conditions restrict the radial growth of nothofagus antarctica regeneration based on the type of forest environment in tierra del fuego |
| topic | Silvopastoral Systems Regeneration (biological) Dendrochronology Microclimate Soil Water Content Sistemas Silvopastoriles Regeneración Dendrocronología Microclima Contenido de Agua en el Suelo Nothofagus Tierra del Fuego Daily Stem Dynamics Dendrometers Dinámica Diaria del Tallo Dendrómetros Ñire Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/16031 https://www.mdpi.com/2071-1050/15/11/8687 https://doi.org/10.3390/su15118687 |
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