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Desarrollo de la regeneración a lo largo del ciclo del manejo forestal de un bosque de Nothofagus pumilio: 1. Incidencia de la cobertura y el aprovechamiento o cosecha
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 1999)La Lenga es la especie forestal de mayor impacto económico en la Patagonia. Dentro del bosque es posible encontrar una población importante de renovales, cuya supervivencia depende de la cantidad de luz que el dosel arbóreo ... -
Desarrollo de la regeneración a lo largo del ciclo del manejo forestal de un bosque de Nothofagus pumilio: 2. Incidencia del ramoneo de Lama guanicoe
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 1999)Los Nothofagus presentan inconvenientes para regenerarse cuando son sometidos a disturbios sistemáticos y permanentes, como lo es el sobrepastoreo. Los bosques de Tierra del Fuego, libres de ganado vacuno, son afectados ... -
Turno de corta y posibilidad de los bosques de lenga (Nothofagus pumilio) en Tierra del Fuego (Argentina) = Rotation length and sustainable use of lenga (Nothofagus pumilio) forests in Tierra del Fuego (Argentina)
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2004)La ordenación forestal regional es una herramienta indispensable para desarrollar políticas forestales que protejan los bosques naturales, en el marco del manejo sustentable y del uso múltiple. Para ello se debe contar con ... -
Demography of Grazed Tussock Grass Populations in Patagonia
(Elsevier, 2005-09)The cover of Festuca gracillima (coirón fueguino), a native tussock grass that dominates grass steppes of Southern Patagonia and Tierra del Fuego, has diminished under continuous sheep grazing. This loss is a concern, ... -
Validation of a canopy photosynthesis model for cocksfoot pastures grown under different light regimes
(Springer Nature, 2006-07)Daily net canopy photosynthesis (Pn) was predicted for cocksfoot (Dactylis glomerata L.) canopies grown under different light regimes by integration of a leaf photosynthesis model developed for the light-saturated ... -
Dynamics of above- and below-ground biomass and nutrient accumulation in an age sequence of Nothofagus antarctica forest of Southern Patagonia
(Elsevier, 2006-07-27)Nothofagus antarctica (Forster f.) Oersted is a deciduous tree species, which naturally grows on poorly drained or drier eastern sites in the Andes Mountain near Patagonian steppe. Above- and below-ground biomass and ... -
Measuring sustainable forest management in Tierra del Fuego, Argentina
(Taylor & Francis, 2007)The Tierra del Fuego government has a statutory responsibility to ensure that Nothofagus forests are sustainably used. To provide strategies to maximize the forest's sustainable benefits for society, this research develops ... -
Dry matter production, morphology and nutritive value of Dactylis glomerata growing under different light regimes
(Springer Nature, 2007-02-11)Plant growth, morphology and nutritive value under shade can differ between temperate grasses. Therefore, the aim of this study was to quantify the dry matter (DM) production, sward morphology, crude protein (CP%), organic ... -
Afidos (Hemiptera. Aphididae) de interés económico en la provincia de Santa Cruz
(Instituto Nacional de Tecnología Agropecuaria, 2007-04)Los pulgones o áfidos (Aphididae), debido a sus características biológicas e impacto económico en los cultivos, representan uno de los grupos de insectos más importantes desde el punto de vista agronómico. Por ello, es de ... -
Photosynthetic plasticity of Nothofagus pumilio seedlings to light intensity and soil moisture
(Elsevier, 2007-05-31)Nothofagus seedlings often survive and grow slowly for a long time in the shaded understory. This creates a seedling bank with a potential advantage in reestablishing canopy disturbances. To manage primary forests more ... -
Harvesting adaptation to biodiversity conservation in sawmill industry: Technology innovation and monitoring program
(Facultad de Economía y Negocios, Universidad Alberto Hurtado, 2007-09-13)Social demands related to native forest ecosystems are based on an efficient management, with a balance between conservation and timber production. This paper describes the industry adaptation to a biodiversity program ... -
Morphological, anatomical, and physiological changes of orchardgrass leaves grown under fluctuating light regimes
(Wiley, 2007-11)The physiological and anatomical adaptability of pastures growing under trees in silvopastoral systems can alter the efficiency of conversion of energy to dry matter (DM). This study was conducted to determine the effects ... -
Flowering and seeding patterns in unmanaged and managed Nothofagus pumilio south Patagonian forests
(Verlag M. und H. Schaper GmbH, 2008)Regeneration is the success key for the silvicultural treatment implemented in natural seed produced forests. Most of the studies assumed that regeneration is limited by environmental factors and herbivory, but few considered ... -
Stand growth model using volume increment/basal area ratios
(Czech Academy of Agricultural Sciences, 2008-03-31)Estimation of stand growth is crucial for forest planning. Estimations were usually done using fixed values, and recently growth equations have been used. An alternative is through stand growth models. The objective was ... -
Functional ecology of Nothofagus pumilio regeneration in relation to light availability
(INFOR (Chile), 2008-04)Las propuestas silvícolas de los bosques de Nothofagus pumilio se basan en la apertura del dosel para estimular el crecimiento de la regeneración, cambiando la disponibilidad de agua y luz. Las plántulas sobreviven como ... -
Above- and belowground nutrients storage and biomass accumulation in marginal Nothofagus antarctica forests in Southern Patagonia
(Elsevier, 2008-04-20)The above- and belowground biomass and nutrient content (N, P, K, Ca, S and Mg) of pure deciduous Nothofagus antarctica (Forster f.) Oersted stands grown in a marginal site and aged from 8 to 180 years were measured in ... -
Respuesta de ovinos a pastizales creciendo en diferentes cobertura de copas en sistemas silvopastoriles de ñire (Nothofagus antarctica) en Patagonia Sur, Argentina
(Instituto Nacional de Investigaciones Agrícolas INIA (Venezuela), 2008-09)La producción ovina representa el principal ingreso anual de los sistemas silvopastoriles de ñire en Patagonia Sur, Argentina. El objetivo del presente trabajo fue cuantificar la respuesta animal frente a la variación de ... -
Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina
(Czech Academy of Agricultural Sciences, 2009-03-31)Net photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. antarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, ... -
A new species of Aphis L. (Hemiptera: Aphididae) from South Patagonia = Una Nueva Especie de Aphis L. (Hemiptera: Aphididae) del Sur de la Patagonia
(Sociedade Entomológica do Brasil, 2009-07-13)Aphis adesmiae Delfino sp. n. se describe del sur de la Patagonia (Argentina). Esta nueva especie de áfido está asociada con el arbusto nativo Adesmia boronioides (Fabaceae). Los caracteres morfológicos de la hembra vivípara ... -
Timber management with variable retention in Nothofagus pumilio forests of Southern Patagonia
(Elsevier, 2009-07-30)Forestry practices integrating ecological and social criteria have been replacing those based only on economic values. Traditional silviculture, such as shelterwood cuts (SC), transforms uneven-aged original stands to an ...