Made available in DSpace on 2014-12-17T15:54:54Z (GMT). No. of bitstreams: 1 IltonAS_DISSERT.pdf: 1448193 bytes, checksum: f8d58bca2c062ed6c6946d11628a4495 (MD5) Previous issue date: 2010-02-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The purpose of this paper is to identify and analyze the main environmental impacts taking place in the permanent preservation areas located in the Cear?-Mirim River estuary/RN and its surrounding areas. For that, the study was divided in two chapters, structured in the shape of a scientific paper. The first is a theoretical proposition on the occupation of the APPs in light of the discussion of the geographic space and the sustainability of the development, where a bibliographical review was made emphasizing the production of the geographic space, the sustainability of the development and the permanent preservation areas. In the second chapter, from a systemic approach, geoprocessing techniques and the adaptation of the Pressure-State- Response Indicators System were used, the latter being developed by the Organization for Economic Co-operation and Development OECD. Therefore, from the methodological approaches used, it's been observed that the use of permanent preservation areas for purposes other than those determined in the legislation and, mainly guided by capitalist interests, leads to the environmental degradation of these areas, fact which has been confirmed in the empiric study conducted in the second chapter, where it was possible to identify a series of environmental impacts such as: deforestation of mangrove and riparian vegetation for carciniculture implantation, the devastation of dune areas caused by the urban expansion in the coastal stretch and siltation of fluvial channel / O objetivo desta disserta??o ? identificar e analisar os principais impactos ambientais ocorrentes nas ?reas de preserva??o permanente localizadas no estu?rio do Rio Cear?-Mirim/RN e suas ?reas adjacentes. Para isto, o estudo foi dividido em dois cap?tulos estruturados em forma de artigo cient?fico. O primeiro ? uma proposi??o te?rica sobre a ocupa??o das APPs a luz da discuss?o do espa?o geogr?fico e da sustentabilidade do desenvolvimento, onde foi feita uma revis?o bibliogr?fica enfatizando a produ??o do espa?o geogr?fico, a sustentabilidade do desenvolvimento e as ?reas de preserva??o permanente. No segundo cap?tulo, a partir de uma abordagem sist?mica foram utilizadas t?cnicas de geoprocessamento e a adapta??o do Sistema de Indicadores Press?o-Estado Resposta, desenvolvido pela Organization for Economic Cooperation and Development OECD. Desta forma, a partir das abordagens metodol?gicas utilizadas, observou-se que a utiliza??o de ?reas de preserva??o permanente para fins diferentes do que est? posta na legisla??o e, principalmente guiada por interesses capitalistas, leva a degrada??o ambiental destas ?reas, fato confirmado no estudo emp?rico realizado no segundo cap?tulo, onde foi poss?vel identificar uma s?rie de impactos ambientais como: desmatamento de vegeta??o de mangue e de mata ciliar para implanta??o da carcinicultura, a devasta??o de ?reas de dunas provocada pela expans?o urbana na faixa litor?nea e assoreamento de canal fluvial

Made available in DSpace on 2014-12-17T15:03:32Z (GMT). No. of bitstreams: 1 HerisonAO_DISSERT.pdf: 3081759 bytes, checksum: 59a4bbd5e10be405adf04193c0181a31 (MD5) Previous issue date: 2013-09-06 / The building of water reservoirs has become a solution for water scarcity of the semiarid regions, however, the land use and occupation near the margins of the reservoirs have been causing serious damage to water quality, harming their use. This paper aims to analyze the land use and occupation in the margins of the Northeast reservoir and evaluate their influence on the water quality, to identify the areas and activities that represent an higher risk of contamination to the reservoir. The study was conducted at the reservoir Dourado, located in the city of Currais Novos - RN, during the period from August 2012 to February 2013. Were defined six areas regarding the land use and occupation, then, Water samples were collected from the margins in these areas for the characterization of water quality. The results showed that almost all Permanent Preservation Areas (PPA) from the reservoir is degraded, increasing the susceptibility of large input of nutrients and contaminants loads. The water reservoir showed low quality, being with strong evidence of eutrophication due to the nutrient accumulation arising from the activities surrounding the reservoir, mainly from agriculture and Livestock. The Areas 1 and 2 are the areas that present a greater risk of reservoir degradation, because are the possible major sources of nutrients (phosphorus total, orthophosphate and nitrate), however, due to the small size of the reservoir, any compound that reaches its margins ultimately affects the water quality of the same / A constru??o de reservat?rios de ?gua se tornou uma solu??o para a escassez de ?gua das regi?es semi?ridas, por?m, a ocupa??o e o uso dos solos pr?ximos ?s margens dos reservat?rios v?m causando s?rios danos a qualidade da ?gua, chegando a prejudicar o seu uso. Este trabalho tem como objetivo analisar o uso e ocupa??o do solo das margens de um reservat?rio nordestino e avaliar a sua influ?ncia sobre a qualidade da ?gua, visando identificar as ?reas e as atividades que representam um maior perigo de contamina??o ao reservat?rio. O trabalho foi realizado no reservat?rio Dourado, localizado no munic?pio de Currais Novos RN, durante per?odo de agosto de 2012 a fevereiro de 2013. Foram delimitadas seis ?reas quanto ao uso e ocupa??o do solo, em seguida, foram coletadas ?guas das margens dessas ?reas para a caracteriza??o da qualidade da ?gua. Os resultados mostraram que quase toda a ?rea de Preserva??o Permanente (APP) do reservat?rio esta degradada, aumentando a susceptibilidade de entrada de grandes cargas de nutrientes e de contaminantes. A ?gua do reservat?rio apresentou baixa qualidade, estando com fortes ind?cios de eutrofiza??o devido ao ac?mulo de nutrientes advindos das atividades realizadas nas margens do reservat?rio, principalmente da agricultura e da cria??o de animais. As ?reas 1 e 2 s?o as ?reas que apresentam um maior risco de degrada??o do reservat?rio, pois s?o as poss?veis maiores fontes de nutrientes (fosforo total, ortofosfato e nitrato), por?m, devido ao pequeno tamanho do reservat?rio, qualquer tipo de composto que chegue em sua margem acaba influenciando na qualidade da ?gua do mesmo

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-02-01T11:44:11Z No. of bitstreams: 1 RODRIGO SEMERIA RUSCHEL.pdf: 4638678 bytes, checksum: d4d1202cce0328177e98030dac7e0f3d (MD5) / Made available in DSpace on 2017-02-01T11:44:11Z (GMT). No. of bitstreams: 1 RODRIGO SEMERIA RUSCHEL.pdf: 4638678 bytes, checksum: d4d1202cce0328177e98030dac7e0f3d (MD5) Previous issue date: 2016-12-21 / This work presents the potential of carbon sequestration and provision of other ecosystem services in the Permanent Preservation Areas along the watercourses of the city of Campinas-SP. Also, the cost associated with the carbon sequestration service was calculated and how much the municipality would benefit from creating a market for the carbon credits generated in the reforestation projects in these areas. It was shown that the commercialization of credits would cover up to 46% of the project implementation costs. In addition to carbon sequestration, the recovery of PPAs along watercourses provides additional ecosystem services to the municipality, which if contemplated in the cost-benefit analysis of reforestation projects represent the largest portion of the total benefits. Therefore, the inclusion of the benefits generated by the additional ecosystem services has proved to be fundamental to make the recovery of PPAs economically viable. / Este trabalho apresenta o potencial de fixacao de carbono e provisao de demais servicos ecossistemicos das Areas de Preservacao Permanente ao longo dos cursos d?agua do municipio de Campinas-SP. Ainda, calculou-se o custo associado ao servico de fixacao de carbono e o quanto o municipio se beneficiaria ao criar um mercado para os creditos de carbono gerados nos projetos de reflorestamento destas areas. Foi demonstrado que a comercializacao dos creditos cobriria ate 46% dos custos de implantacao dos projetos. Alem da fixacao de carbono, a recuperacao das APPs ao longo de cursos d?agua proporciona servicos ecossistemicos adicionais ao municipio, e que se contemplados na analise custo-beneficio dos projetos de reflorestamento representam a maior porcao dos beneficios totais. Portanto, a inclusao dos beneficios gerados pelos servicos ecossistemicos adicionais mostrou-se fundamental para tornar a recuperacao das APPs economicamente viavel.