808 resultados para CONSTRUCCIONES – CONTROL AMBIENTAL - COLOMBIA


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In São Paulo state, deforestation and agriculture activities are increasing soil losses processes, especially in areas of susceptible soils where soil conservation practices are not adopted. Environmental adequacy at property level regarding Permanent Protection Areas and Legal Reserves is considered a potential factor for reducing soil losses and it was based on this fact that we assessed soil losses of different scenarios of environmental adequacy. Simulations of erosive processes were carried out in 15 catchments of the Corumbataí river basin, with different forest restoration scenarios, as well as the current situation of land use/ land cover. The scenarios include reforestation of Permanent Preservation Areas (PPA); the reforestation hydrological sensitive areas; and two scenarios, the Legal Reserve installation in 20% of each catchment, being one of them for most critical areas in terms of erosion and the other at random. It was observed that the establishment of PPA and the reforestation of hydrological sensitive areas (HSA), offered a small contribution to the control of the erosive process, resulting in a reduction of 10% and 7.4%, respectively, while the legal reserve in critical areas has the significant reduction of 69.8%. The random scenario, in turn, resulted in a reduction of 21.4% of erosion. Results show that reforestation can reduce soil losses, but previous studies of land prioritization and planning could significantly increase its efficiency.

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Incluye Bibliografía

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Contiene antecedentes, asistencia y organización de los trabajos y resumen de las presentaciones de la reunión que tuvo como objetivo analizar los aspectos jurídicos, institucionales, económicos y tecnológicos de la política de descontaminación ambiental. Incluye lista de documentos presentados y de participantes.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Este documento fue preparado por Francisco Alberto Galán y Francisco Javier Canal, Colombia, en el marco del Proyecto CEPAL/PNUD 'Financiamiento para el Desarrollo Ambientalmente Sostenible en América Latina y el Caribe', para ser utilizado como insumo en el Panel sobre Financiamiento para el Desarrollo Sostenible dentro de la Conferencia Regional de América Latina y el Caribe preparatoria de la Cumbre Mundial sobre Desarrollo Sostenible. Las opiniones expresadas en este documento, que no ha sido sometido a revisión editorial, son de la exclusiva responsabilidad de los autores y pueden no coincidir con las de la Organización.

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Incluye Bibliografía

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Propuesta preliminar para explorar y estructurar el sistema de informática que resulta necesario para llevar a cabo las tareas de vigilancia y control de la calidad del agua en las cuencas de los ríos Esmeraldas y Teaone.

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Incluye Bibliografía