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From a conceptual discussion on periphery, we analyzed the process of peripheralization in the conurbation of an average-sized city located in the south of the state of Rio Grande do Sul. We aimed to investigate the expansion and the production of peripheral space in the conurbation Pelotas-Capão do Leão, between 1990 and 2011. We used LANDSAT 5 images from the ThematicMapper (TM) sensor, and processed the data with softwares Spring and ArcGIS. The study also included interviews in the local city halls, bibliographical research and data from IBGE. Results indicate the production of two types of periphery in the conurbation analyzed, one formed by precarious settlements in Pelotas and Capão do Leão, and the other composed of medium and high standard subdivisions and gated residential areas around an area of natural attractions. We found that the growth of the cities is related to the location of a naval hub in the neighboring city of Rio Grande, the fragmentation and diffusion of the peripheral space and the formation of urban voids in the process of space production. [ABSTRACT FROM AUTHOR]

Man and the biosphere program, promoted by United Nations, Educational, Scientific and Cultural Organization - UNESCO, which has as its main goals the creation of Biosphere Reserves - BR in different biomes. Although of the importance (strategic and biodiversity position), Cerrado's Biosphere Reserve still has modest dissemination in media / academic community and few Conservation Units that to show biome preservation. In order to contribute to this discussion, the present work aims the period a multitemporal analysis of the Cerrado Biosphere Reserve, regarding the issue of land use and occupation, realized due data from the MapBiomas program, during the period from 2001 to 2016. Analysis has showed that over the years there was a strong conversion of natural areas, which has damaged the central mains of the reserves - preservation of diversity. In total, there were about 15.000 km² of converted areas for anthropic use, 8.000 km² only between 2004 to 2008, which has presenting a variation rate of 14% in that time. [ABSTRACT FROM AUTHOR]