Temas
Mostrando ítems 1-20 de 27
-
Agrupados es la única forma. La experiencia solidaria y autónoma de la cooperativa chacay mamil
(Universidad Católica del Maule, 2020-12-29)Son escasos los antecedentes de estudios sobre cooperativismo agrario en Patagonia, y más aún en la región sur. Es por ello que el presente trabajo se propone analizar la conformación y trayectoria de la cooperativa “Chacay ... -
Balance hídrico en plantaciones de Pinus radiata en el NO de la Patagonia argentina
(Asociación Argentina de Ecología, 2019-08)En la Región Andino Patagónica, el éxito de los sistemas silvopastoriles depende de la densidad de manejo forestal, que busca garantizar el mayor ingreso de agua al suelo para el forraje. El objetivo fue cuantificar y ... -
Cambios en la diversidad y estructura en bosques de nothofagus antarctica en respuesta a distintos disturbios para tres tipos de rodales en Patagonia sur, Argentina = Changes in diversity and structure in nothofagus antarctica forests in response to different disturbances for three stand types in southern Patagonia, Argentina
(Facultad de Ciencias Forestales, Universidad Austral de Chile, 2023-01-24)En la Patagonia sur, el fuego y la herbivoría doméstica son los principales disturbios que controlan la dinámica de los bosques nativos. La respuesta de la diversidad y estructura de las comunidades vegetales frente a los ... -
Caracterización de la situación sanitaria de un rodal de Nothofagus pumilio afectado por notophorina sp.
(Asociación Argentina de Ecología, 2023-12)En un bosque de lenga (Nothofagus pumilio) en el norte de Chubut, detectamos un rodal afectado por Notophorina sp. (Hemiptera, Psyllidae) con sintomatología foliar destacada. Asumimos que se trata de un pico poblacional ... -
Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
(Elsevier, 2021-06-17)Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects ... -
Determinaciones de granulometría en suelos volcánicos: comparación entre distintos métodos analíticos
(Asociación Argentina Ciencia del Suelo, 2016-12)La determinación del tamaño de partículas es un análisis clave en los estudios de suelo, y se requiere información precisa de esta variable. Sin embargo, distintas metodologías de análisis pueden arrojar resultados disímiles, ... -
Efecto del control de malezas sobre el prendimiento y crecimiento inicial de plantaciones de Pinus ponderosa en la Patagonia Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2006)Pinus ponderosa es la especie implantada con mayor potencial en la región andino patagónica en Argentina. Actualmente las plantaciones se realizan sin ninguna preparación del sitio y sin tener en cuenta la relación sitio-tipo ... -
Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry
(Elsevier, 2022-06-06)Dietary supplementation is one of the most used strategies to reduce the effect of environmental fluctuations in arid and semi-arid environments. We evaluated changes in vegetation and in patterns of animal defoliation as ... -
Effects of livestock on the quality of the riparian forest, soil and water in Nothofagus silvopastoral systems
(Springer Nature, 2024-04-03)Controversial aspects of production vs.conservation were profusely discussed globally by considering climate change and its impact on ecosystem services provision. However, previous meticulous livestock planning and short ... -
Estimación de la capacidad de retención de agua de suelos volcánicos en función de variables de fácil determinación a campo
(Asociación Argentina Ciencia del Suelo, 2018-07)Los suelos de la región andino Patagónica se desarrollan fundamentalmente a partir de cenizas y arenas volcánicas, lo que les otorga propiedades distintivas. el objetivo del presente trabajo fue generar modelos que permitan ... -
Evaluación genética en etapa de vivero de áreas productoras de semillas (APS) de Pino Ponderosa en Nordpatagonia
(Ediciones INTA, 2012-12)El Pino Ponderosa (Pinus ponderosa Dougl. ex Laws) es la principal especie forestal implantada en secano en la Patagonia. Su potencialidad productiva y la disponibilidad de tierras para su cultivo permiten proyectar la ... -
Germination requirements of two sheep-preferred grasses (Hordeum comosum and Koeleria vurilochensis var. patagonica) from semiarid Patagonian steppes
(Elsevier, 2012-03)Grazing by domestic exotic herbivores on native vegetation in Patagonian steppes has led to the deterioration of forage resources, where grasses are replaced by shrubs, and preferred grasses by non-preferred ones. Therefore, ... -
Grass recruitment constraints along a grazing gradient in Patagonia: N-limitation x adult competition trade-off
(Elsevier, 2021-03-09)We explored the effect of N addition and adult canopy competition on the recruitment of lost preferred species in the Patagonian steppe, where a decelerated N cycling scenario (sensu Ritchie et al., 1998) had been previously ... -
How does grazing affect soil water availability in the Patagonian steppe?
(Elsevier, 2022-06-01)In the Patagonian steppe, grazing may or may not reduce soil water availability: it may increase evaporative losses, because it reduces plant cover, but may decrease transpiration losses because it decreases plant biomass. ... -
Impact of ponderosa pine afforestations on soil organic matter (SOM) in semiarid steppes of western Patagonia, Argentina
(2017-10)The western steppe of Patagonia, Argentina, is being afforested with conifers since long ago. However, the effects of this land-use change on some soil parameters are still unknown. We determined soil organic matter (SOM) ... -
Mapping soil organic carbon content in Patagonian forests based on climate, topography and vegetation metrics from satellite imagery
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-11)Soil organic carbon (SOC) content supports several ecosystem services. Quantifying SOC requires: (i) accurate C estimates of forest components, and (ii) soil estimates. However, SOC is difficult to measure, so predictive ... -
Modeling the potential distribution of Valeriana carnosa Sm. in Argentinean Patagonia: a proposal for conservation and in situ cultivation considering climate change projections
(Elsevier, 2020-01)Over recent years species distribution models have been used for the identification of suitable cultivation zones for native plant species. Valeriana carnosa is one of the most frequently used native plants in Patagonian ... -
Nitrogenous and Phosphorus Soil Contents in Tierra del Fuego Forests: Relationships with Soil Organic Carbon, Climate, Vegetation and Landscape Metrics
(MDPI, 2023-04-28)Soil nitrogen (SN) and soil phosphorus (SP) contents support several ecosystem services and define the forest type distribution at local scale in Southern Patagonia. The quantification of nutrients during forest surveys ... -
Phenotypic plasticity in leaf traits in response to experimental precipitation increase: wettability, foliar water uptake and gas exchange
(Wiley, 2023-07-12)Water availability is one of the factors affecting plant growth and development, especially in arid and semiarid environments. Changes in precipitation due climate change alter water availability to plants impacting on ... -
Phytophthora austrocedri in Argentina and co-Inhabiting phytophthoras: roles of anthropogenic and abiotic factors in species distribution and diversity
(MDPI, 2020-11-20)This work reports the first survey of Phytophthora diversity in the forests soils of Andean Patagonia. It also discusses the role of anthropogenic impact on Phytophthora distribution inferred from the findings on Phytophthora ...