Distribución espacial, migración interna y desarrollo en América Latina y el Caribe

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Caracterización socioeconómica y espacial de la criminalidad en Chile

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Redistribución espacial de la población: características y tendencias del caso brasileño

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Redistribución espacial de la población de Chile

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El desarrollo y la distribución espacial de la población en América Latina

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Distribución espacial de la población en la América Latina: determinantes y consecuencias

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Heterogeneidad socio-espacial y fecundidad diferencial en Bolivia, parte I

Parte II ingresada en Biblioteca (19523)

Distribución espacial y desarrollo: notas acerca de los asentamientos urbanos de América Latina

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Uso de variables sintomáticas para estimar la distribución espacial de la población

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Seminario sobre redistribucion espacial de la poblacion; resumen de ponencias y debates

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Movilidad espacial, vulnerabilidad y segregación socioespacial: reflexiones a partir del estudio de la Región Metropolitana de Campinas

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Nuevos enfoques para medir la movilidad espacial interna de la población

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Heterogeneidad socio-espacial y fecundidad diferencial en Bolivia, parte II

Parte I ingresada en Biblioteca (69608)

Correlação espacial do índice de vegetação (NDVI) de imagem Landsat/ETM+ com atributos do solo

The precision agriculture technologies such as the spatial variability of soil attributes have been widely studied mostly with sugarcane. Among these technologies have been recently highlighted the use of the vegetation index derived from remote sensing products, such as powerful tools indicating the development of vegetation. This study aimed to analyze the spatial variability of clay content, pH and phosphorus in an Oxisol in an area with sugarcane production, and correlate with the Normalized Difference Vegetation Index (NDVI). The georeferenced grid was created for the soil properties (clay, phosphorus and pH) and generated the maps of spatial variability. For these same sites were calculated the NDVI, in addition to mapping of this ratio, the evaluation of the spatial correlation between this and other studied properties. The clay and phosphorus content showed positive spatial correlation with the NDVI, while no spatial correlation was observed between NDVI and pH. The satellite images from the sensor ETM + Landsat were used to correlate to NDVI to observe the spatial variability of the studied attributes.

Variabilidade espacial de atributos físicos em um cambissolo háplico, sob diferentes usos na região sul do Amazonas

Considering the importance of knowledge of the spatial distribution of soil properties, the purpose of this study was to evaluate the spatial variability of physical properties in a Cambisolunder different land uses in the southern Amazon region. The study was conducted on three farms with cassava, sugarcane, and agroforestry, in the region of Humaitá, in the south of the State of Amazonas. In these areas, 70 x 70 m grids were established, with a regular spacing of 10 x 10 m and a total of 64 points, where soils were sampled at 0.0-0.10 m depth. Texture (sand, silt, and clay), macroporosity, microporosity, total porosity, bulk density, and aggregate stabilitywere determined. The data were analyzed using descriptive statistics and geostatistics. It was found that the propertiesvaried spatially and that the range of these variations between land uses was different, with the highest variability for the sugarcane management.