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Mostrando ítems 41-60 de 85
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Interaction of light and water stress on the ecophysiological response of Nothofagus antarctica (G. Forster) Oerst.
Bahamonde, Héctor Alejandro; Sánchez-Gómez, D.; Gyenge, Javier; Peri, Pablo Luis; Aranda, I. (Instituto de Ciências Agrárias e Ambientais Mediterrânicas da Universidade de Évora, 2014-09-30)Nothofagus antarctica (G. Forster) Oerst. (ñire) occupies a latitudinal gradient ranged from 36° 30´ to 56° 00’ S, and extends from sea level to 2,000 m a.s.l. It is the species with widest ecological amplitude in Nothofagus ... -
Inventario de las reservas de carbono orgánico del suelo de plantaciones forestales de Argentina
Gyenge, Javier; Gatica, Mario Gabriel; Lupi, Ana Maria; Sandoval, Martín; Gaute, Matías (INTA, 2022-08-01)Este documento surge a partir de la información presentada en el Informe: Estimación de las reservas de carbono orgánico del suelo con plantaciones forestales y otros usos de la tierra, en distintas regiones de Argentina. ... -
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 ... -
Mortalidad de pinos en Corrientes: cuando los pronósticos del cambio climático dejan de serlo y se convierten en actualidad
Fernandez, María Elena; Gatica, Mario Gabriel; Bulfe, Nardia María; Pahr, Norberto Manuel; Gyenge, Javier (REDFOR.ar - ArgentinaForestal - CONICET, 2023)Se describe el fenómeno de mortalidad masiva de árboles plantados en Corrientes en respuesta a la sequía y ola de calor registrado en los años 2020 al 2023, así como se analizan los factores ambientales que pudieron haber ... -
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 ... -
Photosynthetic response to water stress of the main grass species of southern patagonian steppe, Argentina
Peri, Pablo Luis; Gyenge, Javier; Fernandez, María Elena (Elsevier, 2024-10)Comparative studies of basic physiological performance are needed to give insight of how grass species survive and grow under current and more severe drought predicted in the framework of climate change in arid steppe ... -
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 ...