987 resultados para Monjolo Grande, Ribeirão, Ipeúna (SP)


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O conhecimento sobre a turbidez atmosférica é de grande importância para áreas de climatologia, monitoramento de poluição e estudos da atenuação da radiação solar em condições de céu limpo. Neste trabalho o modelo de turbidez atmosférica de Linke (TL), modificado por Li e Lam é descrito e utilizado na estimativa da turbidez atmosférica e radiação solar direta na incidência (Ib). Os dados de Ib na incidência e radiação global utilizados são do período de 1996 a 2003. Os resultados mostram que TL apresenta sazonalidade em função do clima local variando entre 3,10±0,72 (maio) e 3,93±0,91(setembro), com média anual igual a 3,51±0,25. Na estimativa de Ib, ocorreu sub/superestimativa (MBE), espalhamento (RMSE) e ajustamento (d), respectivamente, em: janeiro: -4,38%; 13,87%; 0,83 e junho: 2,00%; 8,98%; 0,94. Com base nos valores dos três indicativos estatísticos, o melhor desempenho do modelo foi obtido nos meses de céu sem nuvens e baixa poluição.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The city of Lençóis Paulista has a great part of its agricultural land cultivated by sugar cane and reforestation of eucalyptus and pine trees. In the county there are industries that exploit energy extracted from energy cogeneration. The city of Lençóis Paulista, in recent years, has been demonstrating considerable levels of economic and social growth with the industries that are working with sugarcane and eucalyptus mainly responsible. However, the expansion of agricultural land in many cases does not take into consideration the permanent preservation areas that are protected by the law. The APP's are of fundamental importance in the management and conservation of the environment preserving the natural plants and wildlife, and also preventing erosion and the silting of drainage networks. This objective of this study was to diagnose land use, analyze if Permanent Preservation Areas are regulated to the Brazilian Forestry Code (1965) and also diagnose areas of conflict. In relation to the use and occupation of land, the research has shown how the land is divided (agricultural crops and urban zones), and highlighted areas of conflict with the Permanent Preservation Areas. All of the information is contained in maps using Geographic Information Systems. However, it has become clear that environmental laws are not respected as much in urban areas as they are in rural areas. The PPA's are virtually nonexistent, thus creating damage to the environment and local population.

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The inadequate soil use is an aggravating factor of the environmental degradation and ecological unbalance. The analysis of the use and covering of the soil, by information of Remote Sensing, constitutes a technique of great usefulness to the planning and administration of the ordered occupation and rational of the physical middle, besides making possible to evaluate and to monitor the preservation of areas of natural vegetation. This work sought to evaluate the conflicts of soil use in permanent preservation areas (PPA) in Stream Comur watershed - Botucatu (SP) through Geographical Information System and satellite image of 2009. The study area is located among the geographical coordinates 48o 23’ 04” to 48o 25’ 54” of longitude WGr. and 22o 44’ 42” to 22o 48” 12” of latitude S with an area of 1,719.6 ha. The results allowed to verify that the geoprocessing techniques were of fundamental importance in the identification of the areas of soil use, of APP and of conflicts among use and PPA where it leaves of the areas of APP is being used inadequately. In terms of environmental sustainability, it can be deduced that the watershed is very unfavorable, once it presents 70.67% of area used inadequately with sugarcane and pasture.

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A água é um recurso vital para a existência de todos os organismos vivos, e a captação para uso doméstico, produção agrícola, mineração, produção industrial, geração de energia, atividades de lazer e práticas florestais podem levar à deterioração da sua qualidade, atingindo o ecossistema aquático e também a disponibilidade de água potável disponível para consumo humano. O presente trabalho teve como objetivo monitorar a qualidade da água do Córrego Chumbeadinha no município de Ourinhos-SP, que perpassa pela área urbana da cidade e é desprovido de mata ciliar em quase todo seu percurso, além de sofrer dois represamentos artificiais. O Córrego Chumbeadinha é um afluente de segunda ordem do Rio Paranapanema, percorrendo cerca 4 km de sua nascente até sua foz. Foram realizadas amostragens das seguintes variáveis: Sólidos em Suspensão, pH, concentração de oxigênio dissolvido, condutividade elétrica, temperatura da água, coliformes fecais, transparência da água, além do cálculo do índice de estado trófico, em quatro locais no curso do córrego, de setembro de 2009 a abril de 2010. Dessa forma, o córrego Chumbeadinha nasce com uma qualidade boa, apesar de sofrer forte pressão da expansão urbana, porém os demais pontos foram classificados como eutróficos, sendo registrada a presença de coliformes fecais em todas as amostragens. A falta de vegetação nas margens do lago pode ser a grande causadora da eutrofização, pois os sedimentos não encontram dificuldades para chegar até o curso d'água, assim interferindo diretamente no IET do lago.

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Toxoplasmosis is a worldwide zoonosis caused by Toxoplasma gondii, and can infect a wide variety of animals including humans. Domestic animals can be an important sentinel population for infection in the community. Occurrence of T. gondii infection was assessed in dogs in the urban area of Botucatu city, SP, Brazil. In the sample, 10% rate for error estimate, 95% confidence interval, and 5% significance level were established. Serum samples were collected from dogs during a rabies vaccination campaign, and were processed using modified agglutination test (MAT). Blood samples were collected from 670 dogs, with homogeneous distribution in five regions in the urban area, representing 3.74% of 17,910 animals vaccinated. In this sample, 17.3% (116/670) dogs (68 – 58.6% female and 48 – 41.4% male) were positive for T. gondii infection (p<0.03). Regarding age of the infected dogs 4.6% (4/88) were younger and 95.4% (84/88) were older than one year (p<0.01); the age of 28 positive animals were undetermined. The serum titers of anti-T. gondii antibodies were: 16 (69.8%; 81/116), 64 (13.8%; 16/116), 256 (15.5%; 18/116), and 1024 (0.9%; 1/116). Prevalence was distributed among the North 14.2% (19/134), South 18.0% (31/172), East 15.7% (19/121), West 21.6% (27/125), and Central 16.9% (20/118) regions of the municipality (p=0.5). In all these regions, females and dogs aged more than one year showed a higher occurrence of T. gondii infection (p<0.05).

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The study aimed mapping of the land use capacity classes for the Rio das Pedras watershed, Itatinga-SP in order to provide another mechanism of environmental planning for the studied area. It was used 1:10,000 topographic letters for the slope map generation which was overlaid with the studied area soil map. It was applied the judgment table criteria method, for generation of land use capacity map of the studied area. It were identified the following results: First, class III with constraints in relation of low fertility and restrictions about erosion risks on high slope areas. Second, class VI with the same characteristics of class III however with the presence of an aggravating factor of sand texture in all horizons, resulting in high risks of erosion events, especially in high slopes areas, and contamination by pollutants due the high soil permeability. Conclusions: It was verified that the more critical regions for land use capacity classes were VIs and mainly VIes class. The last one has more high relief areas and the presence of Neossolo Quartzarenico soil, with a big erosion propensity. The land use capacity map allow making different decisions for each region of the watershed respecting their individual characteristics.

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Pós-graduação em Planejamento e Análise de Políticas Públicas - FCHS

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Pós-graduação em Geografia - IGCE

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)