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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ftmdpi:oai:mdpi.com:/2071-1050/15/11/8687/ 2023-08-20T04:00:34+02:00 Microclimatic Conditions Restrict the Radial Growth of Nothofagus antarctica Regeneration Based on the Type of Forest Environment in Tierra del Fuego Guillermo Martínez Pastur Julián Rodríguez-Souilla María V. Lencinas Juan M. Cellini Jimena E. Chaves Marie Claire Aravena-Acuña Fidel A. Roig Pablo L. Peri agris 2023-05-27 application/pdf https://doi.org/10.3390/su15118687 EN eng Multidisciplinary Digital Publishing Institute Environmental Sustainability and Applications https://dx.doi.org/10.3390/su15118687 https://creativecommons.org/licenses/by/4.0/ Sustainability; Volume 15; Issue 11; Pages: 8687 silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content Text 2023 ftmdpi https://doi.org/10.3390/su15118687 2023-08-01T10:14:47Z 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. Text Antarc* Antarctica Tierra del Fuego MDPI Open Access Publishing Patagonia Sustainability 15 11 8687 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content |
spellingShingle |
silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content Guillermo Martínez Pastur Julián Rodríguez-Souilla María V. Lencinas Juan M. Cellini Jimena E. Chaves Marie Claire Aravena-Acuña Fidel A. Roig Pablo L. Peri Microclimatic Conditions Restrict the Radial Growth of Nothofagus antarctica Regeneration Based on the Type of Forest Environment in Tierra del Fuego |
topic_facet |
silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content |
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 |
Text |
author |
Guillermo Martínez Pastur Julián Rodríguez-Souilla María V. Lencinas Juan M. Cellini Jimena E. Chaves Marie Claire Aravena-Acuña Fidel A. Roig Pablo L. Peri |
author_facet |
Guillermo Martínez Pastur Julián Rodríguez-Souilla María V. Lencinas Juan M. Cellini Jimena E. Chaves Marie Claire Aravena-Acuña Fidel A. Roig Pablo L. Peri |
author_sort |
Guillermo Martínez Pastur |
title |
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_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_sort |
microclimatic conditions restrict the radial growth of nothofagus antarctica regeneration based on the type of forest environment in tierra del fuego |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/su15118687 |
op_coverage |
agris |
geographic |
Patagonia |
geographic_facet |
Patagonia |
genre |
Antarc* Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctica Tierra del Fuego |
op_source |
Sustainability; Volume 15; Issue 11; Pages: 8687 |
op_relation |
Environmental Sustainability and Applications https://dx.doi.org/10.3390/su15118687 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/su15118687 |
container_title |
Sustainability |
container_volume |
15 |
container_issue |
11 |
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8687 |
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1774718940567568384 |