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Mostrando ítems 116-134 de 134
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Range contraction and conservation of the endangered Yellow Cardinal
(Elsevier, 2019-05-03)The Yellow Cardinal (Gubernatrix cristata) is distributed in Argentina, Uruguay and Brazil, inhabiting environments of xerophytic woodland and savannah; it is considered globally Endangered since 1994. Populations are under ... -
Reducción de emisiones de carbono por deforestación evitada en bosques del Espinal (Entre Ríos, Argentina) = Reduction of emissions by avoided deforestation in forests of Espinal (Entre Ríos, Argentina)
(Universidad Distrital Francisco José de Caldas, Colombia, 2021-12)Se estimó el carbono (C) almacenado en la biomasa aérea de bosques nativos del Espinal (Distrito del Ñandubay, provincia de Entre Ríos, Argentina) y la reducción de emisiones de CO2 por deforestación evitada. Se utilizó ... -
Relación cartográfica entre variables hidrológicas y de degradación por pérdida de suelo superficial: sitio piloto A° Estacas, Entre Ríos
(Asociación Argentina de la Ciencia del Suelo, 2022-12)El aumento del área agrícola en el norte de la provincia de Entre Ríos resulta de la pérdida del bosque nativo. Este cambio del uso del suelo impacta los servicios ecosistémicos que brindan las cuencas hidrográficas, e ... -
Resiliencia de un pajonal de Panicum prionitis Nees bajo distintas alternativas de manejo
(Asociación Argentina de Ecología, 2016-12)Los “pajonales” de Panicum prionitis (“paja de techar”) son una de las comunidades de mayor extensión en las islas y el valle de inundación del río Paraná. Debido a sus tasas de crecimiento elevadas y a su baja calidad ... -
Régimen de precipitaciones en el centro oeste de Entre Ríos
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Entre Rios, 2019)En este trabajo se caracteriza el régimen pluviométrico de la zona centro oeste de Entre Ríos a distintas escalas de tiempo y se analiza y compara el comportamiento de las precipitaciones de 10 campañas agrícolas. A tal ... -
Sediment and nutrient deposition in different riparian forests and floods of the Middle Paraná River
(Wiley, 2019-10)Sedimentation processes are important to the dynamics of lowland fluvial systems and depend on the characteristics of floods and of riparian ecosystems. The few known studies for the Paraná River system analyzed only summer ... -
Selection of potential biological control of Exserohilum turcicumwith epiphytic microorganisms from maize = Selección de microorganismos epifíticos de maíz como potenciales agentes debiocontrolde Exserohilum turcicum
(Asociación Argentina de Microbiología, 2015)The aims of this study were to select microbial isolates from phyllosphere of maizeand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete ... -
Soil quality impacts of current South American agricultural practices
(Society for Urban Ecology, 2015)Increasing global demand for oil seeds and cereals during the past 50 years has caused an expansion in the cultivated areas and resulted in major soil management and crop production changes throughout Bolivia, Paraguay, ... -
Spatial distribution of pesticides in surface water of the Estacas stream (Argentine Espinal region) associated with crop production
(Springer, 2023-01)The Espinal region (Entre Ríos, Argentina) has sufered land use changes caused by expansion of the agricultural frontier. This expansion has led to an increased use of pesticides. This study is aimed at better understanding ... -
Spatio-Temporal Nitrogen Fertilizer Response in Maize: Field Study and Modeling Approach
(American Society of Agronomy, 2016)Maize (Zea mays L.) yield and its response to nitrogen (N) are affected by the spatial variability of the interaction between weather, management, and soil properties. The objectives of this study were (i) to evaluate the ... -
Stabilization of new carbon inputs rather than old carbon decomposition determines soil organic carbon shifts following woody or herbaceous vegetation transitions
(Springer, 2016-12)Background and aims: Although numerous studies have quantified the effects of land-use changes on soil organic carbon (SOC) stocks, few have examined simultaneously the weight of carbon (C) inputs vs. outputs in shaping ... -
Stover quality and soil organic carbon in long-term nitrogen-fertilized maize
(Alliance of Crop, Soil, and Environmental Science Societies, 2014-09)Nitrogen fertilization often increases maize (Zea mays L.) grain yield but reduces the C/N ratio of stover returned to the soil, which may affect the soil organic carbon (SOC) balance. This study evaluated the long-term ... -
The allometric relationships between biomass and nitrogen of vegetative organs affect crop N status in maize at silking stage
(Elsevier, 2023-04)In maize (Zea mays, L.) changes in the partitioning of biomass (W) and nitrogen (N) between organs linked to photosynthetically active tissues, such as leaves (with high N concentration, %N) and organs related to supporting ... -
Validación del generador climático cligen para precedir la erosión hídrica en el norte de la región pampeana, Argentina = Validation of cligen climate generator to predict water erosion in the Northern Argentinean Pampas Region
(Asociación Argentina de la Ciencia del Suelo, 2017)Las actividades agropecuarias están generalmente orientadas al aumento de los rendimientos de los cultivos, maximizando el uso del recurso suelo. En este escenario, el clima juega un rol muy importante. Por esto es necesario ... -
Variations in pest bird density in Argentinean agroecosystems in relation to land use and/or cover, vegetation productivity and climate
(CSIRO, 2018-12-05)Context: Changes in environmental conditions may influence bird populations, including pest bird species, and their distribution. In Argentina, particularly in the Pampas region, agricultural expansion has resulted in ... -
Vegetation structure and livestock grazing intensity affect ground-foraging birds in xerophytic forests of Central-East Argentina
(Elsevier, 2022-10)Ground birds are strongly associated with the vegetation structure in natural environments under livestock grazing. Birds that fed on the ground may be the most affected by overgrazing, while those that fed on the shrub ... -
Vertical distribution of root biomass and soil carbon stocks in forage cropping systems
(Springer, 2018-02)Background and aims: Forage cropping systems may differentially affect the vertical distribution of roots and soil organic C stock (C-OM). In annual crops sequences (ACS) and perennial pastures (PP), we assessed the ... -
Water and solar radiation productivity of double-crops in a humid temperate area
(Southern Cross Publishing, 2011-12)The intensification of agricultural systems including sequential double-crops provides a reliable platform to increase the water and solar radiation use in many humid temperate areas of South America, which are predominantly ... -
Water Footprint in paddy rice systems. Its determination in theprovinces of Santa Fe and Entre Ríos, Argentina
(Elsevier, 2015-09)In the context of social responsibility and, of the directives aimed at an integral management of natural resources, the Water Footprint (WF) has been widely spread as an indicator that contributes to a safe and sustainable ...