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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MDPI AG
2023
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Online Access: | https://doi.org/10.3390/su15118687 https://doaj.org/article/bc5e25d0d01f4881980e6bbdb4ef9eb8 |
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ftdoajarticles:oai:doaj.org/article:bc5e25d0d01f4881980e6bbdb4ef9eb8 2023-07-02T03:30:44+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 2023-05-01T00:00:00Z https://doi.org/10.3390/su15118687 https://doaj.org/article/bc5e25d0d01f4881980e6bbdb4ef9eb8 EN eng MDPI AG https://www.mdpi.com/2071-1050/15/11/8687 https://doaj.org/toc/2071-1050 doi:10.3390/su15118687 2071-1050 https://doaj.org/article/bc5e25d0d01f4881980e6bbdb4ef9eb8 Sustainability, Vol 15, Iss 8687, p 8687 (2023) silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.3390/su15118687 2023-06-11T00:33:19Z 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. Article in Journal/Newspaper Antarc* Antarctica Tierra del Fuego Directory of Open Access Journals: DOAJ Articles Patagonia Sustainability 15 11 8687 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
spellingShingle |
silvopastoral systems regeneration growth daily stem dynamics dendrometers microclimate soil water content Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 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 Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
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 |
Article in Journal/Newspaper |
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 |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/su15118687 https://doaj.org/article/bc5e25d0d01f4881980e6bbdb4ef9eb8 |
geographic |
Patagonia |
geographic_facet |
Patagonia |
genre |
Antarc* Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctica Tierra del Fuego |
op_source |
Sustainability, Vol 15, Iss 8687, p 8687 (2023) |
op_relation |
https://www.mdpi.com/2071-1050/15/11/8687 https://doaj.org/toc/2071-1050 doi:10.3390/su15118687 2071-1050 https://doaj.org/article/bc5e25d0d01f4881980e6bbdb4ef9eb8 |
op_doi |
https://doi.org/10.3390/su15118687 |
container_title |
Sustainability |
container_volume |
15 |
container_issue |
11 |
container_start_page |
8687 |
_version_ |
1770275024633069568 |