767 resultados para Cuencas hidrográficas
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The present study is about data characterization and evaluation related to private urban users (legal entity) of the Watersheds of the rivers Piracicaba, Capivari, and Jundiai (PCJ), with the PCJ Collection System, sustained by the Department of Water and Power (DAEE), in order to: provide quantitative numbers about this sector, identifying the cities and economic activities corresponding to the largest water consumers, and determine the sector's share in the total charged contribution. The charge for water use is the most recent and the last instrument which has been implemented for the management of water resources, provided by the institution of the State and National Policy of Water Resources in 1991 and 1997, respectively, regarded as an important step towards the preservation and restoration of water resources. According to the data collected in the PCJ Collection System, the urban sector is the private sector that has the highest number of users in these watersheds (52,95% of users), but with less representation in the financial recovery (only 7%), due to its low water demand in their uses compared to the uses of other sectors. The collected data will also serve as both a parameter for comparing the amount of water used by different economic activities and municipalities in the PCJ watersheds and other locations, and as a tool for water resources management
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O Ribeirão Tanquinho, localizado no município de Botucatu, é totalmente inserido no perímetro urbano, da nascente a foz percorre 2.500 metros em área residencial, atravessando 12 quarteirões. A partir de 1998 ficou livre do esgoto e no ano de 2001 os quatro primeiros quarteirões da bacia foram alvo de um projeto de Recuperação Hídrico Florestal promovido pela ONG S.O.S. Cuesta de Botucatu, com o plantio de cerca de 5.400 mudas de árvores nativas visando à recuperação da área intensamente degradada. O presente trabalho teve como objetivo caracterizar a fauna (anfíbios, aves, répteis, peixes e mamíferos) do ribeirão Tanquinho, e gerar resultados que sirva de subsídios para ações ambientais no local, práticas de educação ambiental e também colaborar para o aumento do conhecimento acerca da fauna de Botucatu. Os trabalhos de caracterização de fauna foram realizados durante o período de fevereiro a outubro de 2008. Foram realizadas coletas no local e entrevistas com moradores ribeirinhos, a identificação dos animais foi realizada em campo, com exceção de alguns espécimes de peixes que foram retirados do local e identificados em laboratório. Para as coletas de um modo geral foi utilizada a observação direta com registro fotográfico dos animais, observação indireta através de vocalizações e procura por vestígios. Das 156 pessoas entrevistadas, 132 afirmaram ter visto algum vertebrado no local, no total foram registradas 03 espécies para o grupo peixes, 05 espécies de anfíbios, 06 espécies de répteis, 46 de aves e 07 de mamíferos (02 terrestres e 05 voadores)
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The programs Water Producer and Water Mine are the starting point for the research, whose the main objective is to develop a study on the necessity and possibility to forming water producers in the Veado Creek Watershed Deer, located in Presidente Venceslau - Sao Paulo, in order to improve the quality and quantity of water from the spring. To this end, the implementation of programs in the spring, especially the Water Mine, developed by the State of Sao Paulo, could help change the situation in which degradation is the area of the watershed. The main methodological procedures were performed: survey and literature review, interviews with employees SEAAMA, CATI, interview with the president of the Association of Owners of Rural Watershed of Deer Creek; interview with landowners of the Fountain Creek Watershed Deer; work in the search field at the landfill to the DAE and the Association of Collectors of Recycled. We are dealing with issues such as the importance of the Code of forests with regard to the protection of water resources, decentralized management and participatory of water resources, Payment by Environmental Services, production of water, characterization and diagnosis of the environmental Microbacia of Wealth Córrego do Veado, sanitation of the municipality of Presidente Venceslau. Analyzed the current situation of the watershed of the spring, highlighting the main actions that have been performed by the municipality through the watershed program of the State of São Paulo City Hall and through the resources FEHIDRO. The obtained results allowed to demonstrate the need and the possibility of setting up the Project Mine Of Water in the watershed of the fountain and the interest of owners interviewed by adherence to the Project and the protection of the source
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Interessada em atividades com foco conservacionista, a Ong SOS Cuesta Botucatu foi selecionada pelo programa Petrobrás Ambiental para desenvolver o Projeto Córrego da Cascata no município de Botucatu. Este projeto é uma proposta de mobilização e educação ambiental para envolver a sociedade, principalmente a população ribeirinha, na gestão e no planejamento estratégico de recuperação e conservação ambiental da Microbacia Hidrográfica do Córrego da Cascata. O foco do projeto é promover a reversão dos processos de degradação e planejar ações estratégicas integradas e participativas de manejo e de gestão para a preservação da qualidade ambiental desse córrego urbano, por meio de uma caracterização socioambiental da referida Microbacia. Em relação à caracterização ambiental, o presente estudo refere-se ao levantamento da mastofauna em fragmentos de Mata Atlântica situados na área da Microbacia. O levantamento dos mamíferos terrestres de médio e grande porte foi realizado no período de abril de 2011 a fevereiro de 2012, com a utilização de dois métodos: parcelas de areia e câmeras trap. Outros dois métodos complementares também foram utilizados na tentativa de conseguir resultados que, invariavelmente, não seriam obtidos com as metodologias acima, como entrevistas e registro de atropelamentos. O objetivo é avaliar a riqueza da mastofauna da região comparando com trabalhos anteriores feitos em fragmentos com características semelhantes aos inseridos na Microbacia do Córrego da Cascata, Botucatu, São Paulo. Foram registradas 14 espécies de mamíferos pertencentes a sete Ordens distintas, sendo duas espécies consideradas ameaçadas. Houve predominância de registros de animais generalistas/oportunistas em áreas com menor diversidade de mastofauna
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Pipelines are linear engineering works, designed mostly for transporting oil and its derivatives for long distances, furnishing even the farthermost zones of the country. Due to oil sector needs to ensure for the safety and conservation of its properties, several geotechnical studies are being held at the pipelines field, in order to preserve this important transportation, and also to prevent accidents, which might seriously compromise the environment and the population who lives around it. The OSBRA pipeline, who connects the city of Paulínia to the capital Brasília, is one of these engineering works that deserves to be pointed out. This research, performed at the Ribeirão da Prata Basin, was a pilot study conducted with the main objective of testing the current methodology efficiency, for future applications in the closest watersheds to the OSBRA pipeline. The objective of this research is to analyze flood wave and debris flow processes in a non-fictional watershed, by comparing two different kinds of methods: the first one based on simulation models (software ‘ABC 6’), and the other one by flood wave and debris flow susceptibility mapping. The results from the hydrological modeling were both hydrographs and ietographs that estimated values of outputs and infiltration. To construct the susceptibility maps were necessary three other maps: ground use and occupation maps, divided according to the different protection degrees that were offered to the ground; maps of dam locations in the area and physiographic compartimentation maps, divided according to the local geology. To complete the methodology, the results were collected from both methods for comparison. The obtained product for this methodology was series of data whose different susceptibility degrees to flood wave and debris flow could define the safest route for a pipeline crossing in this watershed...
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The state of São Paulo has four main drainages: Paraná river, Paraíba do Sul river, Ribeira do Iguape river and coastal rivers. The Paraíba do Sul river is born in Sao Paulo and drains an important range of land east of the state. Its ichthyofauna has some similarities and many differences from the continental and coastal drainages which highlights the importance of this study. Surveys conducted in the ichthyofauna of this basin, as in other large river basins in Brazil, is still incomplete. Moreover, there is no consensus about the taxonomic status of many species listed in these surveys. Considering the promising use of DNA barcode as a global system for species identification, the present study is aimed to establishing an inventory of the ichthyofauna of the São Paulo portion of the river Paraíba do Sul and simultaneously build a DNA barcode reference sequence library for fish found. Were obtained and analyzed 354 sequences of the gene cytochrome oxidase c subunit I (COI) belonging to 66 species of São Paulo portion of the Paraíba do Sul river. The average K2P distance between individuals within species of this basin was 0.48%, and 9,87% between species within a genus. Five pairs of species (10 species) showed low levels of interspecific genetic divergence (<2%),but all could be correctly identified. This study showed that the fish species analyzed could be identified efficiently through the use of barcode generating data that can provide information for further studies of this fauna, besides contributing to the global initiative to characterize the species of fish in the world of a molecular point of view. Five pairs of species (10 species) showed low levels of interspecific genetic divergence (<2%), but all could be correctly identified. This study showed that the fish species analyzed could be identified efficiently through the use of barcode generating data that can provide subsidies for further studies in this fauna, as well as ...
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Neste trabalho priorizou-se a visão da água enquanto bem público. No seu tratamento, dado que a economia neoclássica tradicional não nos oferece uma resposta desejável, pisamos o campo da Economia Institucional: da importância das instituições para o desenvolvimento até os diferentes arranjos institucionais, com o aparecimento de múltiplos agentes. Com isso procuramos atacar o problema do “carona”, e mostrar como pode haver cooperação entre os agentes para a produção de um bem público, no caso a água. Em posse desses argumentos, mostramos como é feita a atual gestão dos recursos hídricos no Brasil, descentralizada e participativa, através dos Comitês de Bacias Hidrográficas. Em seguida mostramos como a articulação regional, diante de um cenário de escassez hídrica para abastecimento antrópico, e seus consequentes conflitos, anterior à formação dos CBHs, contribuiu para pressionar um tradicional segmento da indústria na Região Metropolitana de São Paulo (RMSP), o Pólo Petroquímico, e como a opção pela reutilização da água tornou-se uma alternativa não só viável, como economicamente interessante, a ponto da Sabesp e da construtora Odebrecht iniciarem o projeto Aquapolo Ambiental
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The late industrialization, together with other factors, ended up directing much of the rural population to cities, without adequate planning, resulting in high density and irregular settlements in risk areas to low-income population. The man settled in the urban site to break environmental laws that eventually causing an imbalance in the natural environment, causing or exacerbating the shortage in availability of water resources. This situation also happened in Presidente Prudente, especially in the east, the focus of this research. Therefore, this study aims to understand the causes of degradation of waterways in urban areas, focusing on society's relationship with nature and its consequences on environmental quality and quality of life of urban population located in the watershed of stream of Gramado, Presidente Prudente - São Paulo. In this catchment there is the irregular deposition of solid waste in the valley, remnants of old pollution release of domestic sewage and industrial (currently collected and intended for treatment), accelerated processes of erosion in some areas of intensive use of the relief and consequently, the bed siltation of streams that are part of the basin. The quality of urban life was seen through socioeconomic and environmental indicators, which were identified through questionnaires to residents, according to local residence in the landscape, divided into three segments: the tops 60 residents, 90 residents and 112 residents in the areas in valley bottoms. With these data we can relate them to the degradation of the basin and aggregate them to the quality of life of residents. Field studies were needed to visualize the changes that occurred in the watershed over the past three years, with the implementation of works aimed at improvements to the community as the conduit stream of Gramado and construction and operation of Sewage Pumping Stations... (Complete abstract click electronic access below)
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Water is an essential factor in maintaining the vital functions of living beings. We have observed a growing commitment of quality, are due to pollution from many sources and even entire watersheds, whether for industrial waste, sewage, or for substances used in farming such as pesticides, herbicides and fertilizers. Nickel is the 24th most abundant element on earth, is a heavy metal that, in the form of chloride, is a proven genotoxic and mutagenic. Due to its industrial use, there was considerable increase of its concentration in surface sediments. Fish combine characteristics that make them excellent experimental models for aquatic toxicology studies, which are particularly usable as warn about the potential danger of chemicals or the possibility of environmental pollution. Due to impaired water quality and the few published studies relating the nickel with the tissue change, this study aimed at assessing the consequences of the presence of nickel in the aquatic environment. For this analysis, we used individuals of Oreochromis niloticus, exposed for 96 hours at three different concentrations of nickel dissolved in water compared to a control group. After exposure, the gills were removed and these were analyzed by ultramorphological, histological and histochemical analysis. The results indicate that all concentrations used in the experiment altered the histophysiology of exposed individuals. We observed the following changes: rupture of paviment cells, thus resulting in bleeding, loss of microridges surface of these cells and epithelial loss in the gills of all animals in all treatments with nickel chloride, the histochemical analysis showed non-proliferation of chloride cells. However, there was a dose-dependent increase of mucus cells in all animals. Therefore, nickel has toxic potential to fish, from the smallest concentration used up to twice as permitted by law, indicating... (Complete abstract click electronic access below)
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The expansion of urban in medium-sized citie, increase the importance of action planning and management of natural resources, among which water is the most important. Such action should include the integration of physical and man-made elements involved. In this context, it becomesimportant for watershed analysis and the use of geotecnologies. Thus, the objective was to demonstrate the contribution of the geo, as a tool for managing a river basin, allowing the integration of physical data and the analysis of anthropogenic environmental scenarios in urban areas. The area chosen, the basin of the Wenzel, is located in Rio Claro / SP, a city whose urbanization process has been intense and continuous. Thematic maps were generated from the physical environment: soil, slope and geological, as well as maps of land use. With regard to land use maps, these were drawn from the visual interpretation of material aerophotogrammetric, considering the years 1995 and 2010, performing an evolutionary analysis. It was observed that the area presents small variation in the physical and structural aspects, with lithological and geomorphological formation favoring the occurrence of floods, erosion and siltation. These processes are accelerated by the forms of land use, with intense urbanization during the period between 1995 and 2010, and poor preservation of permanent preservation areasand. In the floodplain areas there is a high waste disposal is the most notable environmental problem
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The present study aimed to cytogenetic analysis and structural and molecular level of four fish species of the genus Trichomycterus: T. diabolus, T. iheringi, T. zonatus and T. cf. mimonha collected in different river basins in Brazil. Techniques were used for classical cytogenetic (Giemsa, Silver nitrate impregnation, C-banding) and molecular with the chromosomal location of genes for 18S and 5S rDNA. All individuals examined had a diploid number 54 chromosomes and karyotype consisting of types of metacentric, submetacentric and subtelocentric. The constitutive heterochromatin identified by C-banding was observed in two small blocks in the karyotype of T. diabolus and large blocks of centromeric several pairs in chromosomal karyotypes of T. iheringi, T. zonatus and T. cf. mimonha. The Silver nitrate impregnation and hybridization with 18S rDNA probe revealed the existence of only a couple carryng nucleolar organizing regions (NORs) on the species T. diabolus, T. iheringi and T. cf mimonha, and two pairs carrying 18S rDNA in T. zonatus. The 5S rDNA was observed in interstitial position 6 of the pair in T. iheringi, the synteny with the two pair in 18S rDNA of T.diabolus in pericentromeric position of and two pairs submetacentric, one being also a case of synteny with the 18S rDNA in T. zonatus and T. cf. mimonha, this rDNA was located in the pairs 3, 18 and 25, and synteny in the 18S rDNA pair 18. Although representatives of these four species Trichomycterus present diploid number and karyotypic formula preserved, three is specific about the distribuition patterns of heterochromatin and location of rDNA sequences, indicating that chromosomal differentiation events in this group of fish are acting directly on these genomic portions
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Este trabalho objetivou analisar a qualidade da água de três córregos tributários do rio Bauru, levando em conta a poluição causada por produtos orgânicos e industriais que vinham sendo descartados nos mesmos e as eventuais melhorias conseqüentes das medidas paliativas assumidas pelo DAE-Bauru, mediante a instalação de interceptores-coletores de águas residuárias ao longo Daqueles corpos de água, até que a Estação de Tratamento de Esgotos do município seja construída e se dê início ao seu funcionamento. O monitoramento destes corpos de água durante o período de estiagem e de cheias proposto nesta pesquisa, incluiu investigações sobre as variáveis químicas e físicas de amostras das águas, obtidas mensalmente em 7 pontos de coleta, localizados a montante e a jusante dos pontos de instalação dos emissários, ao longo dos córregos. As amostras de água foram posteriormente analisadas para fossem obtidas informações sobre a eficácia da instalação dos interceptores com relação ao processo de recuperação da saúde dos corpos aquáticos em questão. Os resultados obtidos mostraram que, de um modo geral, as águas de todos os sistemas estudados ainda sofrem impactos, até porque ainda há aquelas que recebem o esgoto descartado “in natura”. No entanto, como ja era esperado, nos pontos de coleta localizados em segmentos dos córregos nos quais os emissários já foram instalados, o impacto ambiental é menor. Mediante a comparação dos resultados obtidos das análises das características físicas e químicas das águas dos sistemas estudados realizadas durante esta investigação com aqueles obtidos nos mesmos corpos de água, em 2007, pudemos observar melhorias da água em alguns dos pontos de coleta
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The expansion and growth of towns affect the hydrology of watersheds included in the urban environment, impacting mainly the slopes and river channels. This interference can be in soil waterproofing, the runoff of rainwater, the extinction of surface drainage, the dynamics of flooding processes, etc. For studies concerning the hydrological behavior of watersheds, Remote Sensing techniques have been used to support the acquisition and analysis of data and also to generate new information from the integration of these data. In this context, the study aimed to characterize scenarios and conduct comparative analysis of urban occupation of parts of watershed the Córrego da Servidão, in Rio Claro (SP) and analyze the degree of waterproofing on the ground. With the support of the soil categories of waterproofing listed in Soil Conservation Service (S.C.S / USDA) this analysis was conducted, considering the scenarios of 1958 and 2006, through processes of interpretative analysis of panchromatic and color images aerofotogramétricas. The analysis, data integration and mapping of the watershed area were conducted in an environment of a Geographic Information System (GIS). Maps were obtained to characterize land cover in the watershed, showing the evolution of urban occupation, as well as indicating the densely built and waterproofed
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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A pesquisa tem como objetivo analisar os resultados da implementação de duas políticas públicas: O Projeto de Desenvolvimento Rural Sustentável – PDRS (Microbacias II) e o Programa Territórios da Cidadania - PTC, sendo que a primeira é de âmbito estadual e visa o desenvolvimento rural e a segunda da esfera federal e tem como objetivo promover o desenvolvimento territorial. Optamos por efetuar a apreciação empírica de ambas as políticas no Escritório de Desenvolvimento Rural (EDR) de Presidente Venceslau, o qual é composto por onze municípios, quais sejam: Caiuá, Euclides da Cunha Paulista, Marabá Paulista, Mirante do Paranapanema, Piquerobi, Presidente Epitácio, Presidente Venceslau, Ribeirão dos Índios, Rosana, Santo Anastácio e Teodoro Sampaio. O Microbacias II (com execução prevista entre 2010 a 2015) é continuação do Programa Estadual de Microbacias Hidrográficas – PEMH (Microbacias I), o qual sua execução foi de 2000 a 2008. Ambos obtiveram financiamento parcial do Banco Mundial (BIRD) e se inserem numa nova lógica de desenvolvimento rural, diferente da que ocorreu entre as décadas de 1960 a 1980. Nessa nova perspectiva, passou a haver maior preocupação com a degradação ambiental e com a pobreza dos agricultores familiares. O Microbacias I teve maior preocupação com a degradação ambiental, enquanto que o Microbacias II está voltado para favorecer a inserção dos produtores rurais no mercado. O Programa Territórios da Cidadania foi criado em 2008 e tem como meta principal combater a pobreza nos territórios rurais selecionados. Houve significativos benefícios de ambos os programas no EDR