Artículos científicos: Envíos recientes
Mostrando ítems 1-20 de 42
-
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 ... -
Suplementación en estepas patagónicas: ¿oportunidad o riesgo ambiental?
(Facultad de Agronomía, Universidad de Buenos Aires, 2023-03-29)El deterioro de los recursos forrajeros de la Patagonia se evidencia en la reducción de la cobertura vegetal, la producción primaria neta aérea (PPNA) y las existencias ovinas, esto último asociado con la caída de la ... -
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 ... -
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 ... -
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 ... -
Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies
(MDPI, 2023-05-08)The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their ... -
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 ... -
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 ... -
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 ... -
Trends in ANPP response to temperature in wetland meadows across a subcontinental gradient in Patagonia
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-06-17)Due to ongoing global warming, seasonal patterns of aboveground net primary production (ANPP) may be altered by temperature trends. Of particular interest is the seasonal association between ANPP and temperature at the ... -
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. ... -
Resilient andisols under silvopastoral systems
(Elsevier, 2022-03-20)Livestock can affect physical and chemical soil properties, depending on both stocking rates, and intrinsic soil properties. This study aimed to analyze changes in physicochemical properties in volcanic soils under ... -
Variación altitudinal de caracteres fenológicos y crecimiento inicial en condiciones controladas entre poblaciones de Nothofagus pumilio provenientes del Centro-Oeste de Chubut, Argentina
(Facultad de Ciencias Forestales y Recursos Naturales de la Universidad Austral de Chile, 2019-02-19)Se estudió la diferenciación altitudinal de seis poblaciones naturales argentinas de lenga (Nothofagus pumilio) del Centro Oeste de la Provincia de Chubut (42° 50´ S) distribuidas en un rango altitudinal de 500 m (1.000 ... -
Evaluation of strawberry (Fragaria × ananassa Duch.) runner plants production in Tierra del Fuego (54°48'57"S) and transplant yield perfomance in subtropical areas of Argentina
(International Society for Horticultural Science, 2009-08)The objective of this research was to evaluate the feasibility of producing fresh plants in Tierra del Fuego (TDF) with the aim of digging plants in early fall and establishing them in subtropical strawberry growing regions ... -
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 ... -
Estructuras agrarias provinciales con datos censales y fuentes alternativas - Parte V
(Instituto Argentino para el Desarrollo Económico, 2021-05-15)La relevancia que tiene en la economía argentina el sector agropecuario en tanto proveedor de divisas vía exportaciones y fijador de precios de bienes salario, requiere contar con buenos diagnósticos para el diseño de ... -
Role of abiotic factors in nothofagus pumilio forest mortality: the sensitivity of ecotones
(Elsevier, 2021-04-24)The world's forests are being affected by a changing climate. Recently, patches of dead trees have been found in forests of the Patagonian endemic species Nothofagus pumilio, which could not be related to insects or ... -
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 ... -
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 ... -
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 ...