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Mostrando ítems 1-20 de 32
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A comparison of two types of sheep grazing management in a forest-grass steppe ecotone in southern Patagonia
(IRC, 2011-04-02)A sustainable silvopastoral production in southern Patagonia ranch is the key for conservatioon of Nothofagus antarctica native forest under grazing management. The goal of this work was to compare the traditional grazing ... -
Biomass, carbon and nutrient storage for dominant grasses of cold temperate steppe grasslands in southern Patagonia, Argentina
(Elsevier, 2010-01)We hypothesized that different dominant grasses species display contrasting nutrient accumulation, allocation and conservation strategies. Also, we expect a distinctive pattern of carbon and biomass partitioning according ... -
Carbon Storage in Cold Temperate Ecosystems in Southern Patagonia, Argentina.
(inTech, 2011-08)Recently there has been an increasing interest of research related to improve the understanding of carbon (C) sequestration mainly under Article 3.4 of the Kyoto Protocol of the United Nations Framework Convention on Climate ... -
Cartografía de un nuevo Modelo de Estados y Transiciones de la Estepa Magallánica Seca en la Patagonia argentina
(Asociación Argentina de Ecología, 2021-08)Analizamos 103 censos de vegetación de la Estepa Magallánica Seca, un área de 12000 km2 de estepas graminosas semiáridas en el SE de la Patagonia. Los objetivos del presente trabajo fueron ampliar el relevamiento de ... -
Dinámica y prospectiva de la productividad de la vegetación en la Cuenca Alta del Río Limay. Diciembre 2020
(EEA Bariloche, INTA, 2020-12)El presente es un informe de caracterización de la dinámica y prospectiva de la productividad de la vegetación, estimada a partir de series del Índice de Vegetación Diferencial Normalizado (NDVI) del período 2000-2020, ... -
Dinámica y Prospectiva de la vegetación en la Corporación Pulmarí, Neuquén : Informe I. Noviembre 2021
(EEA Bariloche, INTA, 2021-11)El presente, es el primer informe de caracterización de la dinámica y prospectiva de la productividad de la vegetación en la Corporación Pulmarí, provincia de Neuquén, actualizado a noviembre de 2021. Solicitado por el ... -
Diversity patterns in the steppe of Argentinean Southern Patagonia: Environmental drivers and impact of grazing
(NOVA Science Publishers, 2013)The steppe ecosystem, mainly characterised by the presence of tussock, short grasses and shrubs, covers 85% of the total area in Santa Cruz Province and 25% in Tierra del Fuego Island. Most of the land in the Patagonian ... -
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 ... -
The effects of land management (grazing intensity) vs. the effects of topography, soil properties, vegetation type, and climate on soil carbon concentration in Southern Patagonia
(Elsevier, 2016-11)Grazing is an economically important activity in Southern Patagonia’s steppe and woodland ecosystems. In the past, emphasis has been on maximizing the provisioning capacity of these ecosystems with little concern for the ... -
Estudio de los microorganismos del suelo en ambientes de bosque y estepa en Santa Cruz: líneas de base y su respuesta a pastoreo y fertilización
(Universidad Nacional de la Patagonia Austral, 2018-10-09)En los ecosistemas terrestres, la descomposición de la materia orgánica es un importante proceso mediado por microorganismos que utilizan al material orgánico muerto como hábitat y fuente de carbono (C) y energía. Este ... -
Food habits of Oligoryzomys longicaudatus (Rodentia) in a steppe–forest transitional area of Argentinean Patagonia
(Asociación Argentina de Ecología, 2014)We described the spatial and seasonal variation of feeding habits of Oligoryzomys longicaudatus in four environments of the steppe-forest transition zone of Argentinean Patagonia. Composition of fecal pellets collected ... -
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) ... -
Impacto de la redistribución de agua en áreas de estepa: estudio de caso en un arroyo temporario del NO de Chubut = Water redistribution effect in steppe areas: a study case in a temporary stream of the Chubut NW
(Facultad de Agronomía, Universidad Nacional de La Pampa, 2013)Con el objetivo de evaluar el impacto en la vegetación y el suelo de una obra de redistribución de agua en área de estepa, se desarrolló durante 2010 y 2011 un ensayo en el área ecológica de Sierras y Mesetas Occidentales ... -
Improving the knowledge of plant potential biodiversity-ecosystem services links using maps at the regional level in Southern Patagonia.
(Springer, 2021-07-22)Background: Biodiversity supports multiple ecosystem services, whereas species loss endangers the provision of many services and affects ecosystem resilience and resistance capacity. The increase of remote sensing techniques ... -
Ingenieros ocultos se alimentan de estiércol y mejoran las pasturas en la estepa, ¡Conózcalos!
(EEA Bariloche, INTA, 2022-06)En sistemas pastoriles, la mayoría de las decisiones de manejo productivo tiene que ver con resolver la interacción Ganado-Pastizal. Pero acaso ¿esas son todas las interacciones que se pueden tener en cuenta? ¿Qué pasa con ... -
Linking ecosystem resistance, resilience, and stability in steppes of North Patagonia
(Elsevier, 2013-01)The main objective of an ecosystem sustainable management is to preserve its capacity to respond and adapt to current disturbances and/or future changes, and maintain the provision of environmental goods and services. Two ... -
Mineral elements in grasses growing in contrasting environmental conditions in southern Patagonia
(2016)The importance of grasses and graminoids for sheep nutrition in Argentinean Patagonia is widely recognized. Focusing on sheep nutrition, we assessed the concentration of mineral elements in grasses growing in three ecological ... -
Modificaciones en el ph y contenido de materia orgánica en suelos del ecotono estepa bosque andino patagónico por implantación de pino ponderosa
(Facultad de Agronomía, Universidad de Buenos Aires, 2006-02-08)En este trabajo de tesis se evaluaron las alteraciones espaciales y temporales que, sobre algunos factores ambientales y edáficos, causa la implantación de pino ponderosa (Pinus ponderosa Dougl. ex Laws.) en pastizales ... -
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 ...