autores
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Autores
Mostrando ítems 1-20 de 25
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Adaptability to climate change in forestry species : drought effects on growth and wood anatomy of ponderosa pines growing at different competition levels
Fernandez, María Elena; Gyenge, Javier; De Urquiza, Maria Mercedes; Varela, Santiago Agustin (2012)More stressful conditions are expected due to climatic change in several regions, including Patagonia, South-America. In this region, there are no studies about the impact of severe drought events on growth and wood ... -
Afforestations and wetlands, are they a good combination? Study of water fluxes in two cases of Patagonian wetlands
Weigandt, Mariana Noemi; Gyenge, Javier; Fernandez, María Elena; Varela, Santiago Agustin; Schlichter, Tomas Miguel (Wiley, 2015-04)Wetlands are ecosystems that play a key role in maintaining biodiversity and associated economies (e.g. agriculture and livestock) because they are reservoirs of water and carbon. Globally, these environments have been ... -
Aspectos ambientales
Rusch, Veronica Elena; Gyenge, Javier; Weigandt, Mariana Noemi; Varela, Santiago Agustin (Ediciones INTA, 2019)En términos ecológicos, al considerarse el “ecosistema bosque” se incluyen tanto las comunidades vegetales como animales, los componentes abióticos (agua, suelo y minerales) y todos aquellos procesos y funciones que los ... -
Aspectos Ambientales
Rusch, Veronica Elena; Gyenge, Javier; Frugoni, María Cristina; Sarasola, Mauro Miguel; Lantschner, Maria Victoria; Nuñez, Martin Andrés; Nuñez, Cecilia Inés; Diez, Juan Pablo; Weigandt, Mariana Noemi; Fernandez, Maria Elena (Ministerio de Agroindustria, Presidencia de la Nación, 2018)Las actividades humanas generan modificaciones de los ecosistemas. En algunas oportunidades éstas son reversibles, mientras que en otras son definitivas; siendo imposible o de muy alto costo revertirlas. Estos cambios ... -
Caracterización silvícola de ñirantales del norte de la Patagonia para la gestión forestal sostenible = Silvicultural characterization of the mixed ñire forests of northern Patagonia as a basis for sustainable forestry
Requea, José A.; Sarasola, Mauro Miguel; Gyenge, Javier; Fernandez, María Elena (Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2007-04-30)A pesar de la amplia distribución geográfica y uso de los ñirantales, son muy escasos los trabajos descriptivos sobre la silvicultura en estas comunidades forestales, centrándose principalmente en las zonas donde el ñire ... -
Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables
Martinez Meier, Alejandro; Fernandez, María Elena; Dalla Salda, Guillermina; Gyenge, Javier Enrique; Licata, Julián Andrés; Rozenberg, Philippe (2015-06)Climate and stands management have an effect on the process of wood formation via resource availability. To improve knowledge of wood quantity and physical structure, increment cores of ponderosa pine were taken in high- ... -
Ecuaciones para la estimación de biomasa aérea y volumen de fuste de algunas especies leñosas nativas en el valle del río Foyel, NO de la Patagonia argentina = Equations for above-ground biomass and stem volume of some native woody species growing in Foyel valley, NW Patagonia Argentina
Gyenge, Javier; Fernandez, María Elena; Sarasola, Mauro Miguel; De Urquiza, Maria Mercedes; Schlichter, Tomas Miguel (Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2009-08-31)Los bosques y matorrales dominados por ñire (Nothofagus antarctica) se encuentran entre los ecosistemas de mayor distribución latitudinal dentro de los bosques andino patagónicos, conformando gran parte del ecotono ... -
Effect of stand density and pruning on growth of ponderosa pines in NW Patagonia, Argentina
Gyenge, Javier Enrique; Fernandez, María Elena; Schlichter, Tomas Miguel (2010-03)Due to the lack of knowledge about ponderosa pine performance under silvopastoral systems (SPS) conditions, the objective of this study was to determine the effect of stand density and pruning on the growth magnitude of ... -
Effects of low-density Pinus elliottii (Slash pine) afforestation on environmental conditions and native plant diversity, in the mountains of central Argentina
Fiandino, Santiago Ignacio; Plevich, Jose Omar; Tarico, Juan Carlos; Nuñez, César; Rusch, Veronica Elena; Gyenge, Javier (2018-07)Question: What effects do low-density afforestation with Pinus elliottii have on the site conditions and plant diversity of the mountains of central Argentina? Location: Sierra de Comechingones, central Argentina. Methods: ... -
Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
Edwards, Priscila; Varela, Santiago Agustin; Lopez, Dardo Ruben; Willems, Priscila Mabel; Lopez, Aldana; Gyenge, Javier (Taylor & Francis, 2017-08-31)In Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test ... -
Intensity and number of thinning operations affect the response of Eucalyptus grandis to water availability and extreme drought events
Giana, Fabián Eduardo; Martinez Meier, Alejandro; Mastrandrea, Ciro Andres; Garcia, Maria De Los Angeles; Caniza, Federico Javier; Monteoliva, Silvia Estela; Gyenge, Javier; Fernandez, María Elena (Elsevier, 2023-02)Climate change has induced an increase in the frequency and intensity of droughts and heat waves, reducing growth and increasing the mortality risk of both natural and planted forests. Management practices are expected to ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia
Weigandt, Mariana Noemi; Gyenge, Javier Enrique; Fernandez, María Elena; Varela, Santiago Agustin; Schlichter, Tomas Miguel (2011)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia = Afecta la presencia de forestaciones ubicadas en las laderas aguas arriba de mallines su productividad forrajera? Un estudio en el Noroeste Patagónico
Weigandt, Mariana Noemi; Gyenge, Javier; Fernandez, María Elena; Varela, Santiago Agustin; Schlichter, Tomas Miguel (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), (España), 2011-04-13)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
Modeling leaf maximum net photosynthetic rate of Festuca pallescens, the dominant perennial grass of Patagonian pine-based silvopastoral systems
Caballe, Gonzalo; Fernandez, María Elena; Gyenge, Javier; Aparicio, Alejandro Gabriel; Schlichter, Tomas Miguel (2011-09)The integrated relationship in a simple mechanistic model between the critical environmental factors controlling leaf photosynthesis of understory species would be a useful tool to optimize the management of the silvopastoral ... -
Physiological and morphological short-term responses to light and temperature in two Nothofagus species of Patagonia, South America
Varela, Santiago Agustin; Fernandez, María Elena; Gyenge, Javier Enrique; Aparicio, Alejandro Gabriel; Bruzzone, Octavio Augusto; Schlichter, Tomas Miguel (2012-12)The study of plant responses to environmental stress factors is essential for management of plant systems and for anticipating their response to climate change. The main goal of this study was to determine morphological ... -
Physiological status of conifer seedlings treated with radiation, drought and frost stress mitigation techniques: a laboratory assessment
Varela, Santiago Agustin; Weigandt, Mariana Noemi; Willems, Priscila Mabel; Bianchi, Emilio; Diez, Juan Pablo; Gyenge, Javier Enrique (2016)En la región oriental del noroeste de la Patagonia, se levanta del rápido crecimiento de coníferas exóticas Pinus ponderosa (pino ponderosa) y Pseudotsuga menziesii (Abeto de Douglas) se están estableciendo en lugares que ... -
Resiliencia y resistencia forestal en tiempos de cambio climático
Weigandt, Mariana Noemi; Varela, Santiago Agustin; Diez, Juan Pablo; Fernandez, María Elena; Gyenge, Javier (Ediciones INTA, 2019-12)Los bosques se encuentran expuestos en la actualidad a condiciones climáticas extremas. Esto vuelve incierta su supervivencia y resalta la importancia de tomar medidas hoy para garantizarla. Aunque no sabemos con exactitud ... -
Securing water for trees and people : possible avenues
Gracia, Carlos; Vanclay, Jerry; Daly Hassen, Hamed; Sabaté Jorba, Santiago; Gyenge, Javier Enrique (2011)In the context of water scarcity, threats on forest survival in drier areas, and thus of inevitable trade-off between man and nature for the use of water, this section addresses three main questions of importance for ... -
Seedling drought stress susceptibility in two deciduous Nothofagus species of NW Patagonia
Varela, Santiago Agustin; Gyenge, Javier Enrique; Fernandez, María Elena; Schlichter, Tomas Miguel (2010-06)The physiological capacities of seedlings to cope with drought may be subject to strong selective pressure in the context of future climate scenarios, threatening the regeneration and sustainability of forests. Characterization ... -
Silvopastoral systems based on natural grassland and ponderosa pine in Northwestern Patagonia, Argentina
Caballe, Gonzalo; Gyenge, Javier; Fernandez, María Elena; Lantschner, Maria Victoria; Rusch, Veronica Elena; Letourneau, Federico Jorge; Borrelli, Laura Beatriz (2016)En este capítulo se resumen los resultados de las investigaciones realizadas en los últimos 15 años y proporciona directrices de gestión para el desarrollo de silvopastoril. Los sistemas basados en las plantaciones de pino ...