Search results
Showing items 1 through 9 of 370.
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Library Resource
Argentina, China, Cuba, Senegal, South Africa, Tunisia
The objective of the Land Degradation Assessment in Drylands (LADA) project was to develop tools and methods to assess and quantify the nature, extent, severity and impacts of land degradation on dryland ecosystems, watersheds and river basins, carbon storage and biological diversity at a range of spatial and temporal scales. This builds the national, regional and international capacity to
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Library Resource
Estudio de caso sobre la lucha de de mujeres que fueron protagonistas de la defensa del ambiente y el derecho a la tierra de varias familias campesinas en la provincia de Salta, Argentina. Forma parte de la serie Situación de riesgo y estrategias de autoprotección. Defensorasde la tierra, el territorio y el medio ambiente en América Latina, elaborada por la Iniciativa Mujer Rural y Derechos a la Tierra en el marco del Día Internacional de la Mujer.
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Library Resource
Argentina ha sido y es, dentro de la región, un campo de experimentación para las empresas transnacionales, y hoy coexisten, aquí y en gran parte del mundo, dos formas antagónicas y conflictivas de concebir lo agrario: las cadenas agroindustriales del agronegocio, y los sistemas alimentarios campesinos, indígenas y de la agricultura familiar que aspiran a la construcción de la Soberanía Alimentaria.
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Library Resource
Peer-reviewed publication
Argentina, Colombia, Peru, Venezuela
La tierra: un recurso en disputa describe de qué forma y sobre qué instituciones y actores ejercen presión las actuales demandas por la tierra y otros recursos naturales asociados en los 4 países estudiados. Se identifica y se presenta a los actores que ocupan o tienen intereses en el territorio rural, haciéndose el esfuerzo de ir más allá de las categorías genéricas de “campesino”, “indígena”, “agricultor” o “inversionista”. Así, se hace un intento por desglosar y averiguar quiénes integran cada uno de estos grupos en la actualidad.
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Library Resource
We analysed coexistence patterns between two mesocarnivores, Geoffroy's cat (Leopardus geoffroyi: Felidae) and culpeo fox (Pseudalopex culpaeus: Canidae), in northern Patagonia, Argentina. We examined spatial distribution influenced by land cover, anthropogenic disturbance and invasive hare presence, and analysed temporal activity patterns and dietary composition. If competitive exclusion accounts for carnivore coexistence in this system, we predicted segregation would occur in one or more of these aspects as a mechanism for coexistence.
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Library Resource
Land-use land-cover (LULC) changes are one of the major threats to biodiversity worldwide, since their principal consequences are the loss, fragmentation or degradation of the habitat available for most species. Therefore, in order to provide guidelines for environmental management at the regional scale and thus reverse the trend in degradation, transformations of natural remnants into anthropogenic land uses must be identified and quantified.
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Library Resource
The Pampean region covers a large surface in central Argentina, but despite the extensive agricultural activities and the high nutrient levels recorded in streams of the region, few authors have analysed the influence of land use on water quality. Here, we evaluated the relationships among catchment attributes (size, morphometry and land cover) and water chemistry in 23 Pampean streams in different seasons (autumn, spring and summer) and at three spatial scales: whole catchment and two scales of riparian buffers (200 and 500 m adjacent to both stream margins).
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Library Resource
Urbanization is a global phenomenon with still unknown consequences for vegetation dynamics of urban ecosystems, especially in subtropical areas of developing countries. In this paper we analyze the vegetation productivity trend associated to urban densification and urban expansion during the last decade, in twelve cities of northern Argentina. We used time series analysis of MODIS-NDVI images to reconstruct the phenological patterns to retrieve a productivity trend under three spatial classes of urban dynamics: (1) urban, (2) expansion and (3) periphery.
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Library Resource
United States of America, Argentina
This paper analyzes the evolution of property rights legislation in Argentina with respect to new seed varieties. In comparison to the United States, Argentina has weak protection and enforcement of property rights for new seeds. These weak property rights affect the registration and commercialization of new soybean seeds. This paper shows how private producers of seeds react to differences in property rights between Argentina and the United States and also between corn and soybeans.
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Library Resource
Twenty years ago I completed my Master’s work in the Chaco forests of northern Argentina. The native forests are, in fact, rangelands. In addition to livestock grazing, there is timber extraction, wildlife harvest (think tegu lizard cowboy boots), and charcoal production. I took part in a project comparing biodiversity among production systems. A new system promised to reverse biodiversity loss and soil degradation. But it’s a moot point now since much of that forest has been cleared for cropland—the highest rate of tropical forest loss in the world.
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