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Mostrando ítems 1-20 de 30
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Anthropogenic Impacts Allowed for the Invasion of Understory Species, Affecting the Sustainability of Management Practices in Southern Patagonia
Rosas, Yamina Micaela; Peri, Pablo Luis; Cellini, Juan Manuel; Lencinas, María Vanessa; Kepfer-Rojas, Sebastian; Kappel Schmidt, Inger; Pechar, Sebastián; Barrera, Marcelo Daniel; Martínez Pastur, Guillermo José (MDPI, 2024-01-16)Forest management aims to preserve integrity and ecosystem resilience. Conservation and species invasion patterns must be determined in managed landscapes. The objectives of this study were to identify proxies that allowed ... -
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 (Springer, 2011-04-08)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 ... -
Carbon pool dynamics after variable retention harvesting in Nothofagus pumilio forests of Tierra del Fuego
Chaves, Jimena Elizabeth; Aravena Acuña, Marie Claire; Rodríguez‑Souilla, Julián; Cellini, Juan Manuel; Rappa, Nolan J.; Lencinas, María Vanessa; Peri, Pablo Luis; Martínez Pastur, Guillermo José (Springer Nature, 2023-01-23)Background It is necessary to determine the implications for managing forest stands using variable retention harvesting for maintaining carbon and for calculating the effects of different harvesting practices on above‑ and ... -
Changes in forest structure modify understory and livestock occurrence along the natural cycle and different management strategies in Nothofagus antarctica forests
Martínez Pastur, Guillermo José; Cellini, Juan Manuel; Chaves, Jimena Elizabeth; Rodríguez‑Souilla, Julián; Benítez, Julieta; Rosas, Yamina Micaela; Soler Esteban, Rosina Matilde; Lencinas, María Vanessa; Peri, Pablo Luis (Springer Nature, 2022-08-17)Sustainable forest management is proposed as a solution for many ecological and socioeconomic trade-offs associated with different forest uses. In Patagonia, silvopastoral systems were proposed to balance provisioning ... -
Changes in forest structure values along the natural cycle and different management strategies in Nothofagus antarctica forests
Martínez Pastur, Guillermo José; Rosas, Yamina Micaela; Chaves, Jimena Elizabeth; Cellini, Juan Manuel; Barrera, Marcelo Daniel; Favoretti Bondar, Santiago; Lencinas, María Vanessa; Peri, Pablo Luis (Elsevier, 2021-04-15)Ecologically sustainable forest management aims to preserve ecosystem integrity by providing wood and non-wood values. For this, it is necessary to determine the losses produced by the different management practices in ... -
Changes in nutrient and fibre tissue contents in Nothofagus pumilio trees growing at site quality and crown class gradients
Chaves, Jimena Elizabeth; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis; Martinez Pastur, Guillermo José (Elsevier, 2022-02-01)Estimation of biomass and nutrient contents in tree components are essential for evaluating the impact of harvesting on carbon fixation capacity, bio-element recycling, and long-term effect on the balance that influence ... -
Conservation values of understory vascular plants in even- and uneven-aged Nothofagus antarctica forests
Martínez Pastur, Guillermo José; Rosas, Yamina Micaela; Cellini, Juan Manuel; Barrera, Marcelo Daniel; Toro Manríquez, Mónica D.R.; Huertas Herrera, Alejandro; Favoretti Bondar, Santiago; Lencinas, María Vanessa; Peri, Pablo Luis (Springer, 2020-09)Usually, stands with aging trees are considered forests with higher conservation values, regardless their structural diversity and other functional attributes. Natural stands present a wide range of age structures, from ... -
Different Approaches of Forest Type Classifications for Argentina Based on Functional Forests and Canopy Cover Composition by Tree Species
Martínez Pastur, Guillermo José; Loto, Dante; Rodríguez‑Souilla, Julián; Silveira, Eduarda M.O.; Cellini, Juan Manuel; Peri, Pablo Luis (MDPI, 2024-04-24)Modern forestry systems rely on typologies of forest types (FTs). In Argentina, several proposals have been developed, but they lack unified criteria. The objective was to compare different approaches, specifically focusing ... -
Environmental variables influencing regeneration of Nothofagus pumilio in a system with combined aggregated and dispersed retention
Martínez Pastur, Guillermo José; Cellini, Juan Manuel; Lencinas, María Vanessa; Barrera, Marcelo Daniel; Peri, Pablo Luis (Elsevier, 2011-01-01)The current silvicultural prescriptions for Nothofagus are designed to stimulate natural regeneration by opening the canopy. One of these methods is variable retention, which can include either or both aggregated and ... -
Forest carbon management strategies influence storage compartmentalization in Nothofagus antarctica forest landscapes
Aravena Acuña, Marie Claire; Chaves, Jimena Elizabeth; Rodríguez‑Souilla, Julián; Cellini, Juan Manuel; Peña-Rojas, Karen A.; Lencinas, María Vanessa; Peri, Pablo Luis; Martínez Pastur, Guillermo José (Canadian Science Publishing, 2023-10)Silvopastoral systems are one of the strategies proposed to manage natural forests in southern Patagonia for livestock and timber purposes. In the context of climate change, it is necessary to design new management proposals ... -
Influencia de factores bióticos y abióticos en el crecimiento de la regeneración pre- y post-cosecha en un bosque de Nothofagus pumilio
Martínez Pastur, Guillermo José; Cellini, Juan Manuel; Barrera, Marcelo Daniel; Lencinas, María Vanessa; Soler Esteban, Rosina Matilde; Peri, Pablo Luis (2017)Para definir nuevas prácticas silvícolas es necesario conocer los procesos ecosistémicos involucrados y los impactos que generan. Las propuestas implementadas generaron diversos interrogantes relacionados al dosel remanente, ... -
Knowledge arising from long-term research of variable retention harvesting in Tierra del Fuego: where do we go from here?
Martínez Pastur, Guillermo José; Rosas, Yamina Micaela; Toro Manríquez, Mónica D.R.; Huertas Herrera, Alejandro; Miller, Juan A.; Cellini, Juan Manuel; Barrera, Marcelo Daniel; Peri, Pablo Luis; Lencinas, María Vanessa (Springer Open, 2019-07)Nothofagus pumilio forests in Tierra del Fuego are the southernmost forests in the world, where extreme climate conditions represent a challenge to attain sustainable forest management. Retention forestry was proposed as ... -
Land sharing in South Patagonia: Conservation of above-ground beetle diversity in forests and non-forest ecosystems
Lencinas, María Vanessa; Sola, Francisco Javier; Cellini, Juan Manuel; Peri, Pablo Luis; Martínez Pastur, Guillermo José (Elsevier, 2019-11)Land-sharing strategies, as variable retention silvicultural proposals, are useful to mitigate harmful effects of economic activities on forest biodiversity; benefits have been reported worldwide for several organisms. ... -
Landscape variables influence over active restoration strategies of Nothofagus forests degraded by invasive Castor canadensis in Tierra del Fuego
Martinez Pastur, Guillermo José; Cellini, Juan Manuel; Lencinas, María Vanessa; Rosas, Yamina Micaela; Henn, Jonathan J.; Peri, Pablo Luis (MDPI, 2021-07-06)North American beavers (Castor canadensis) are responsible for the major changes in the Tierra del Fuego Archipelago, altering riparian forests for the long-term. Passive restoration of the areas affected was ineffective ... -
Long-term monitoring of thinning for silvopastoral purposes in Nothofagus antarctica forests of Tierra del Fuego, Argentina
Martínez Pastur, Guillermo José; Soler Esteban, Rosina Matilde; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, España, 2018)Aim of the study: To analyse the effectiveness of thinning on tree growth, forest structure and microclimatic variables along seven years after cuttings in a secondary Nothofagus antarctica forest in Southern Patagonia. Area ... -
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 (MDPI, 2023-05-27)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 ... -
Proposals for Nothofagus antarctica diameter growth estimation: simple vs. global models
Ivancich, Horacio Simón; Martínez Pastur, Guillermo José; Lencinas, María Vanessa; Cellini, Juan Manuel; Peri, Pablo Luis (Czech Academy of Agricultural Sciences, 2014)Tree growth is one of the main variables needed for forest management planning. The use of simple models containing traditional equations to describe tree growth is common. However, equations that incorporate different ... -
Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events
Rodríguez‑Souilla, Julián; Chaves, Jimena Elizabeth; Lencinas, María Vanessa; Cellini, Juan Manuel; Roig Junent, Fidel Alejandro; Peri, Pablo Luis; Martínez Pastur, Guillermo José (Springer Nature, 2024-01-23)Forest ecosystems undergo significant transformations due to harvesting and climate fluctuations, emphasizing the critical role of seeding in natural regeneration and long‑term structural preservation. Climate change further ... -
Radial growth response to long-term thinning strategies in Nothofagus pumilio forests of Tierra del Fuego = Respuesta del crecimiento radial a estrategias de raleo de largo plazo en bosques de Nothofagus pumilio de Tierra del Fuego
Rodríguez‑Souilla, Julián; Cellini, Juan Manuel; Lencinas, María Vanessa; Paredes, Dardo; Chaves, Jimena Elizabeth; Roig Junent, Fidel Alejandro; Favoretti, Santiago; Peri, Pablo Luis; Martínez Pastur, Guillermo José (Faculty of Forest Sciences and Natural Resources, Austral University of Chile, 2023)New silvicultural proposals based on long-term trials are needed to develop forest management strategies. Radial growth response was the preferred proxy for managers to define thinning levels and best years for intervention. ... -
Rendimiento de distintos sistemas de aprovechamiento en la corta de protección de un bosque de Nothofagus pumilio = Stocking and yield potential of three different logging systems in a shelterwood cut of Nothofagus pumilio forest
Cellini, Juan Manuel; Martinez Pastur, Guillermo José; Spagarino, Carlos; Peri, Pablo Luis; Vukasovic, Ricardo (2017)Los bosques de Nothofagus pumilio constituyen la masa forestal de mayor importancia económica del sur de Argentina y Chile. Las existencias de volumen total y el rendimiento volumétrico varían de acuerdo a la calidad de ...