Artículos científicos: Envíos recientes
Mostrando ítems 181-200 de 216
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Better estimates of soil carbon from geographical data: a revised global approach
(2018-05)Soils hold the largest pool of organic carbon (C) on Earth; yet, soil organic carbon (SOC) reservoirs are not well represented in climate change mitigation strategies because our database for ecosystems where human impacts ... -
Long-term monitoring of thinning for silvopastoral purposes in Nothofagus antarctica forests of Tierra del Fuego, Argentina
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, España, 2018)Aim of the study: To analyse the effectiveness of thinning on tree growth, forest structure and microclimatic variables along seven years after cuttings in a secondary Nothofagus antarctica forest in Southern Patagonia. Area ... -
Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management
(2017-09-15)Mast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed ... -
Estimates of soil carbon concentration in tropical and temperate forest and woodland from available GIS data on three continents
(2013-04)Aim: Concern about climate change, with the subsequent emergence of carbonmarkets and policy initiatives such as REDD (reducing carbon emissions bydecreasing deforestation and forest degradation), have focused attention ... -
Soil Nitrate Profiles and the Risk of Nitrate Leaching in Sweet Cherry Orchards Subjected to Different Management Schemes
(2014)When nitrogen is applied to sweet cherry orchards, losses can take place. The authors determined the soil nitrate distribution in fertilized sweet cherry orchards in Southern Patagonia (Argentina). The treatments were ... -
Investigación socio-ecológica a largo plazo en la Patagonia Austral: Estrategias interdisciplinarias para lograr la conservación de los recursos naturales a través de un manejo sustentable bajo escenarios de cambio global
(2016-04)Las dimensiones ecológicas, sociales, institucionales y políticas de los problemas ambientales abarcan escalas espaciales y temporales que exceden a la mayoría de las investigaciones científicas. Una alternativa que crece ... -
Biodiversity and ecological long-term plots in Southern Patagonia to support sustainable land management: The case of PEBANPA network
(2016-12)Historically, interactions and trends between biodiversity, ecosystem function (EF) and land use practices in southern Patagonia (Argentina) have been largely undocumented and poorly understood. Since 2002, 1214 permanent ... -
Physico-chemical properties of plant cuticles and their functional and ecological significance
(2017-11)Most aerial plant surfaces are covered with a lipid-rich cuticle, which is a barrier for the bidirectional transport of substances between the plant and the surrounding environment. This review article provides an overview ... -
Assessing Knowledge Production for Agrosilvopastoral Systems in South America
(2018-02)In recent decades agroforestry has undergone significant development in Latin America. South America generates the most scientific research on the topic in the region. We conducted a comprehensive review and analysis of ... -
Influencia de factores bióticos y abióticos en el crecimiento de la regeneración pre- y post-cosecha en un bosque de Nothofagus pumilio
(2017)Para definir nuevas prácticas silvícolas es necesario conocer los procesos ecosistémicos involucrados y los impactos que generan. Las propuestas implementadas generaron diversos interrogantes relacionados al dosel remanente, ... -
The role of facultatively nectarivorous birds as pollinators of Anarthrophyllum desideratum in the Patagonian steppe: a geographical approach
(2017-12)The endemic shrub Anarthrophyllum desideratum appears to be the only ornithophilous plant offering nectar as reward in the extensive Patagonian steppe. The identity of its floral visitor assemblage and to what extent this ... -
Surface properties and permeability to calcium chloride of Fagus sylvatica and Quercus petraea leaves of different canopy heights
(2018-04)Plant surfaces have a considerable degree of chemical and physical variability also in relation to different environmental conditions, organs and state of development. The potential changes on plant surface properties ... -
Modelo de simulación de producción de materia seca y concentración de proteína bruta de gramíneas creciendo en bosques de Nothofagus antarctica (G. Forster) Oerst. bajo uso silvopastoril
(2014)Nothofagus antarctica (ñire) ocupa una importante fracción de los bosques de la Patagonia Austral y suele ser usado en sistemas silvopastoriles. Se carece, sin embargo de información que permita hacer un uso óptimo y ... -
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 ... -
Respuesta de la vegetación al manejo por corte en fajas en un arbustal de Mulguraea tridens en Patagonia sur
(2016-12)En Santa Cruz, aproximadamente 2.83 millones de hectáreas conforman el matorral de mata negra, una estepa arbustiva dominada por el arbusto Mulguraea tridens, donde la ganadería ovina extensiva es la principal actividad ... -
Sheep faeces decomposition and nutrient release across an environmental gradient in Southern Patagonia
(2017-04)In Southern Patagonia, most of the land ranging from the mountains to the sea in contrasting environmental conditions is devoted to extensive sheep farming. Existing estimations indicate that in ecosystems under livestock ... -
A review of silvopastoral systems in native forests of Nothofagus antarctica in southern Patagonia, Argentina
(2016-12)Silvopastoral systems in Nothofagus antarctica (ñire) forest have become an economical, ecological and productive alternative in Patagonia. Southern Patagonia’s experience over the past 12 years with silvopastoral systems ... -
Silvopastoral use of Nothofagus antarctica in Southern Patagonian forests, influence over net nitrogen soil mineralization
(2013-04)In most temperate forest, nitrogen (N) is considered a limiting factor. This becomes important in extreme environments, as Nothofagus antarctica forests, where the antecedents are scarce. Thinning practices in N. antarctica ... -
Ten years of seed production and establishment of regeneration measurements in Nothofagus antarctica forests under different crown cover and quality sites, in Southern Patagonia
(2018-06)This study evaluated the seed production and quality and the subsequent regeneration establishment in five pure Nothofagus antarctica forests growing at different site qualities and crown cover during 10 years, in Southern ... -
Litterfall and nutrients return in Nothofagus antarctica forests growing in a site quality gradient with different management uses in Southern Patagonia
(2015-01)We evaluated the annual litterfall and nutrients return in primary forests of Nothofagus antarctica growing at three different site classes (SC) (III, IV and V) and compared two of these forests with adjacent stands under ...