Artículos científicos: Envíos recientes
Mostrando ítems 41-60 de 557
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Diagramas de manejo de densidad para renovales de roble, raulí y coigüe en Chile = Stocking management charts for roble, raulí and coigüe second growth forests in Chile
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2007)A total of 214 permanent and temporary plots from roble (Nothofagus obliqua ), raulí (N. alpina) and coigüe (N. dombeyi) pure and mixed second growth forests located between 37°30 and 42°00 south latitude in Chile were ... -
“Mal del ciprés”: búsqueda de la causa más probable de daño mediante un análisis deductivo y comparativo = “Cypress Mortality”: search the more probably damage cause by means of deductive and comparative analysis
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2007)The “cypress mortality” (“mal del ciprés”) is a disease of unknown causes, which affects cordillera cypress (Austrocedrus chilensis) in Argentina. In this work a basic guide to diagnosing plant diseases and to compare the ... -
Modelos de crecimiento diamétrico para Nothofagus obliqua = Diameter growth models for Nothofagus obliqua
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2003)Non-linear, Bertalanffy-Richards-type models of diameter growth were developed for Nothofagus obliqua and fitted for different social tree strata using the diameter annual increment (id) and diameter at breast height (dap). ... -
Desarrollo temprano del roble (Nothofagus obliqua): un análisis arquitectural de procedencias de Argentina = Early development of roble (Nothofagus obliqua): an architectural analysis of provenances from Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2006-04-28)Se estudió el desarrollo arquitectural en tres años de plántulas de Nothofagus obliqua bajo condiciones de vivero. Las plántulas derivaron de semillas de cinco procedencias dentro del área de distribución natural de esta ... -
Modelos de crecimiento diamétrico para Nothofagus dombeyi = Diameter growth models for Nothofagus dombeyi
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2001-12-31)Se desarrollaron varios modelos de crecimiento diamétrico para la especie Nothofagus dombeyi. La función seleccionada para el estudio es no lineal, usualmente denominada Bertalanffy-Richards. La misma se ajustó a partir ... -
Ecuaciones para la estimación de biomasa aérea y volumen de fuste de algunas especies leñosas nativas en el valle del río Foyel, NO de la Patagonia argentina = Equations for above-ground biomass and stem volume of some native woody species growing in Foyel valley, NW Patagonia Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2009-08-31)Los bosques y matorrales dominados por ñire (Nothofagus antarctica) se encuentran entre los ecosistemas de mayor distribución latitudinal dentro de los bosques andino patagónicos, conformando gran parte del ecotono ... -
Caracterización silvícola de ñirantales del norte de la Patagonia para la gestión forestal sostenible = Silvicultural characterization of the mixed ñire forests of northern Patagonia as a basis for sustainable forestry
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2007-04-30)A pesar de la amplia distribución geográfica y uso de los ñirantales, son muy escasos los trabajos descriptivos sobre la silvicultura en estas comunidades forestales, centrándose principalmente en las zonas donde el ñire ... -
Ciclo biológico de un microlepidóptero que ataca los frutos y semillas del ciprés de la cordillera [Austrocedrus chilensis (D. Don) Fl. et Bout.] = Biological cycle of a microlepidoptera attacking fruits and seeds of ciprés de la cordillera [Austrocedrus chilensis (D. Don) Fl. et Bout.]
(Facultad de Ciencias Forestales, Universidad Austral de Chile, 1997-06-30)Los frutos y semillas del ciprés de la cordillera [Austrocedru s chilensis (D. Don) Fl. et Bout.] son atacados por las larvas de un microlepidóptero. Los porcentajes de daño adquieren significancia variable de acuerdo a ... -
ROS-Scavenging Enzymes as an Antioxidant Response to High Concentration of Anthracene in the Liverwort Marchantia polymorpha L.
(MDPI, 2021-07)Marchantia polymorpha L. responds to environmental changes using a myriad set of physiological responses, some unique to the lineage related to the lack of a vascular- and root-system. This study investigates the physiological ... -
Mass fux decay timescales of volcanic particles due to aeolian processes in the Argentinian Patagonia steppe
(Springer Nature, 2020-09)We investigate the timescales of the horizontal mass flux decay of wind remobilised volcanic particles in Argentina, associated with the tephra-fallout deposit produced by the 2011–2012 Cordón Caulle (Chile) eruption. ... -
Inter-community and on-farm asymmetric organic matter allocation patterns drive soil fertility gradients in a rural Andean landscape.
(Wiley, 2020-12)Soil fertility in agricultural landscapes is driven by complex interactions between natural and anthropogenic processes, with organic matter (OM) inputs playing a critical role. Asymmetric allocation patterns of these ... -
A Multi-Objective Model Exploration of Banana-Canopy Management and Nutrient Input Scenarios for Optimal Banana-Legume Intercrop Performance
(MDPI, 2021-02)Bananas on smallholder farmers in the African Great Lakes region are often pruned to illuminate shorter understory intercrops, reducing overall farm profitability. The impact of this practice on environmental and nutritional ... -
The educational community and its knowledge and perceptions of native and invasive alien species
(Springer Nature, 2021-11)Environmental education seeks to foster an appreciation for nature and the impact of humans on it while introducing citizens to scientific thinking. Biological invasions affect different aspects of life on earth and mandate ... -
Redefining the field to mobilize three-dimensional diversity and ecosystem services on the arable farm
(Elsevier, 2021-01)In this article we explore the concept and implications of three-dimensional (spatial, temporal, and genetic) in-field crop diversification to inform systems redesign towards ecological intensification. We first present a ... -
Lo rural y lo científico: La presencia de la Estación Experimental Regional Agropecuaria (EERA) INTA Bariloche 1962-1968
(Universidad Nacional de Quilmes, 2014-07)En este trabajo se discute el modo en que desde una práctica científica se toma lo rural en la estepa norpatagónica durante la segunda mitad del siglo XX, observando la intervención de estudios científicos asociados a la ... -
Back to the people: The role of community-based responses in shaping landscape trajectories in Oaxaca, Mexico.
(Elsevier, 2021-01)Land use change results from top-down drivers, such as policies, trade, and migration. Land use change may also result from community-based responses. In Mexico, rural communities govern most of the country's forests. This ... -
Assessing farmer perceptions on livestock intensification and associated trade-offs using fuzzy cognitive maps; a study in mixed farming systems in the mid-hills of Nepal
(Wiley, 2023-02)Intensified livestock production is considered as a promising pathway for smallholder farmers. Nevertheless, this pathway may entail prohibitive investment requirements of labour, capital or trade-offs at farm level that ... -
Phenotypic characterization of the goat population of Santa Elena province (Ecuador)
(UCOPress. Cordoba University Press, 2020)It was proposed to typify phenotypically the goats of the Santa Elena province, Ecuador, and to test if there were different phenotypes. 344 animals were sampled in different types of production systems. The following ... -
Upstream-Downstream Influence of Water Harvesting Techniques (Jessour) on Soil Water Retention in Southeast Tunisia
(MDPI, 2023-04)Weather parameters and soil moisture profiles were measured at an hourly time step during four agricultural years (September to October, from 2018–19 to 2021–22) in two Jessour (water harvesting cultivated terraces) of the ... -
Mulinum spinosum y la carne de cordero: detección de su presencia en ovinos vivos = Mulinum spinosum and lamb meat: detecting its presence on live sheep
(UCOPress. Cordoba University Press, 2011)En Patagonia, la ganadería ovina es una de las principales actividades económicas, pero la calidad de la carne de cordero se ve afectada por el sabor desagradable que toma a causa de la ingesta de neneo (Mulinum spinosum ...