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Mostrando ítems 41-60 de 82
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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 ... -
Leaf wettability, anatomy and ultra-structure of Nothofagus antarctica and N. betuloides grown under a CO2 enriched atmosphere
Bahamonde, Héctor Alejandro; Aranda, Ismael; Peri, Pablo Luis; Gyenge, Javier; Fernández, Victoria (Elsevier, 2023-01)Increasing CO2 air concentration may affect wettability, anatomy and ultra-structure of leaves of Patagonian forest species, evergreen and deciduous plants potentially responding differently to such CO2 increases. In this ... -
Modeling forest site productivity using climate data and topographic imagery in Pinus elliottii plantations of central Argentina
Fiandino, Santiago; Plevich, Jose; Tarico, Juan; Utello, Marco; Demaestri, Marcela; Gyenge, Javier (Springer Science, 2020-10)Key message: To be useful for silvicultural and forest management practices, the models of Site Index (SI) should be based on accessible predictor variables. In this study, we used spatially explicit data obtained from ... -
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 ... -
Morpho-physiological response to vertically heterogeneous soil salinity of two glycophyte woody taxa, Salix matsudana x S. alba and Eucalyptus camaldulensis Dehnh
Quiñones Martorello, Adriana; Gyenge, Javier; Fernandez, María Elena (Springer International, 2017-07)Aims Growth and physiology of Salix matsudana x S. alba and E. camaldulensis were evaluated in vertical saline gradients to test whether growth is determined by the mean salinity of rhizosphere, the average salinity weighed ... -
Narrow vessels cavitate first during a simulated drought in Eucalyptus camaldulensis
Barigah, Tete Severien; Gyenge, Javier; Barreto, Florencia; Rozenberg, Philippe; Fernandez, María Elena (Wiley, 2021-09-15)Establishing drying-limits for mortality of different tree species and understanding the anatomical and physiological traits involved is crucial to predict forests' responses to climate change. The xylem of Eucalyptus ... -
Natural grassland conversion to agriculture or pine plantations: Effects on soil methane uptake
De Bernardi, María; Priano, María Eugenia; Fernandez, María Elena; Gyenge, Javier; Juliarena, Maria Paula (Wiley, 2024-01-30)Upland soils are the only known biological sink for methane (CH4) by methanotrophic bacteria consumption. This process is mainly limited by the diffusion processes related to the soil's physical characteristics, which can ... -
New insights into wood anatomy and function relationships: how Eucalyptus challenges what we already know
Fernandez, María Elena; Barotto, Antonio José; Martinez Meier, Alejandro; Gyenge, Javier; Teson, Natalia; Quiñones Martorello, Adriana; Merlo, Esther; Dalla Salda, Guillermina; Rozenberg, Philippe; Monteoliva, Silvia (Elsevier, 2019-12-15)Multispecies surveys have shown that there is a weak but significant trade-off between xylem efficiency and safety in woody species, with no species maximizing both attributes at the same time. Relationships between xylem ... -
Nuevas herramientas para desarrollar propuestas de manejo de plantaciones de eucaliptos en la provincia de Buenos Aires
Gyenge, Javier; Ferrere, Paula; Milione, Germán; Martinez Meier, Alejandro; Caballe, Gonzalo; Dominguez Daguer, Diego; Fernandez, María Elena; Lupi, Ana Maria (Ediciones INTA, 2020)Este diagrama de manejo surge a partir de la información recabada por varios grupos de investigación, de datos publicados en revistas científicas e inclu- so, de material inédito. La información necesaria para construir ... -
Patterns of resource use efficiency in relation to intra-specific competition, size of the trees and resource availability in ponderosa pine
Gyenge, Javier; Fernandez, María Elena (Elsevier, 2014-01-15)Patterns of resource use efficiency (RUE) in relation to intra-specific competition, size of the trees and resource availability are under debate. Also, the relationship between RUE and growth efficiency (GE) seems to be ... -
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 ... -
Las plantaciones forestales almacenan 70 millones de toneladas de carbono orgánico
Peri, Pablo Luis; Lupi, Ana Maria; Gyenge, Javier (Grupo Editorial de Misiones Online, 2022-08-29)Así lo determinó un estudio realizado por el INTA y la Secretaría de Agricultura, Ganadería y Pesca de la Nación que analizó esta capacidad de los suelos en los diversos ambientes del país. Entre los resultados se destaca ... -
Plantaciones forestales en el sudeste bonaerense: ¿ángeles o demonios?
Gyenge, Javier; Fernandez, María Elena (Estación Experimental Agropecuaria Balcarce, INTA, 2022-05)Las plantaciones forestales con especies de rápido crecimiento se promocionan como la panacea para mitigar el cambio climático, a la vez que despiertan fuerte rechazo por su potencial impacto ambiental. ¿Existe un punto ... -
La poda del arbolado urbano: repensando una práctica contraproducente
Sallesses, Leonardo Fabian; Moreno, Karen; Delgado Vázquez, Lucía Mabel; Quiñones Martorello, Adriana; Fernandez, María Elena; Gyenge, Javier (Estación Experimental Agropecuaria Balcarce, INTA, 2023-08)Las recomendaciones actuales indican que la poda del arbolado público sólo se debe realizar en casos particulares que son determinados por la autoridad competente a nivel municipal. La poda del arbolado público por parte ... -
Potencial de desarrollo de plantaciones dendroenergéticas en la Argentina
Casellas, Karina Susana; Lupi, Ana Maria; Olemberg, Demián Jeremías; Gyenge, Javier; Fernandez, Roberto; Fassola, Hugo Enrique; Zaderenko, Constantino; Navarro, María Fabiana (FAO, 2020-08)El trabajo pretende contribuir a que se conozcan y dimensionen aspectos claves del potencial de desarrollo de plantaciones dendroenergéticas en la Argentina, sobre la base de conocimiento científico acerca de la silvicultura ... -
Presentación de los reportes nacionales de carbono orgánico del suelo en plantaciones forestales y los usos del suelo asociados: algunas particularidades encontradas en la región pampeana.
Gyenge, Javier; Gatica, Mario Gabriel; Fernandez, María Elena (Estación Experimental Agropecuaria Balcarce, INTA, 2022-09)Gracias al accionar conjunto de técnicos pertenecientes a diversas instituciones nacionales se construyeron dos reportes en donde se analizó la capacidad de los sistemas forestales de almacenar carbono orgánico en los ... -
A process-based numerical approach to estimate forest groundwater consumption in flatland petrocalcic soils
Mujica, Claudio Ramón; Milione, Germán Marcelo; Bea, Sergio Andrés; Gyenge, Javier (International Water Association Publishing, 2019-11-01)Grasslands are extensively distributed in flatland areas around the world such as the Pampas in South-America. It is one of the most economically productive landscapes and, as in other regions, they are being replaced by ... -
Production of fodder in a treeless system and in silvopastoral system in central Argentina
Plevich, José Omar; Gyenge, Javier; Sánchez Delgado, Ángel; Tarico, Juan Carlos; Fiandino, Santiago; Utello, Marcos Jesús (Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro, 2019-01-31)This paper aims to identify the spatial and temporal distribution of net aerial primary production (NAPP) of oats and sorghum in silvopastoral systems (SPS) and in a treeless situation (TLS), in Southern Cordoba, Argentina. ...