Estudo da distribuição e do potencial de metilação do mercúrio em solos e sedimentos de áreas a serem inundadas para aproveitamento hidrelétrico: Vinicius Marques Gomes. -

Pós-graduação em Química - IQ

Banco de sementes do solo em áreas de mineração e do entorno

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Helmintofauna associada à Physalaemus cuvieri proveniente de duas áreas de Mata Atlântica

From November 2009 to January 2010 we collected 22 specimens of Physalaemus cuvieri from a preserved area (State Park of Serra do Mar - Núcleo Santa Virginia, São Paulo State, Brazil) and 21 specimens from a disturbed area with habitat fragmentation (rural areas – São Luis do Paraitinga municipality, São Paulo State, Brazil) to compare the helminth fauna associated to this anuro species. The helminth fauna is composed by the nematodes of family Cosmocercidae, Physaloptera sp. and Rhabdias sp. as well as Acanthocephalus saopaulensis in the individuals from the preserved area; the individuals from the fragmented area also presented nematodes of family Cosmocercidae, Physaloptera sp. and Rhabdias sp. as well as Oswaldocruzia subauricularis and the monogenea Polystoma cuvieri. Prevalence, mean intensity of infection, mean abundance, mean richness, importance index (IE) and Dominance frequency were calculated in both localities, but there was no statistical diference. The diversity of helminth species was calculated by Shannon, Brillouin and Berger-Parked index, and by using Shannon diversity t-test we compared helminths diversity associated with anfibian from this two localities

Identificação de áreas sujeitas a processos erosivos na área urbana do município de Aparecida, SP

Historically, in Brazil, the process of urbanization and city growth was due to the intense migration of rural population to urban areas, especially in the last thirty years. This move, combined with a lack of planning, allowed the occupation of areas with potential for occurrences of erosion. The city of Aparecida, SP can be cited as an example of this process. These irregular occupations generate large material damage and human losses conditioned on mass movement of soil, resulting from the development of erosive processes. So, it is of great importance to physical characterization and identification of these areas within the same city map as a way to minimize the effects and mitigate the consequences of events. Thus, this work presents a series of graduate field campaigns, geotechnical laboratory testing and consultation with representative maps of the physical environment, as a means conclusive for delimintation of areas with potential risk for the occurrence of erosion, especially in areas undergoing urban expansion of the city Aparecida, SP. These areas were determined some geotechnical properties of soils present, evaluating the potential erodibility of them. Also presented are the descriptions of the main characteristics of these areas identified as being at risk, along with proposals to avoid or minimize the impact of problems related to erosion processes on the local population

O uso do geoprocessamento para mapear as áreas verdes urbanas como indicador de qualidade ambiental no município de Americana/SP

The style of life in the cities deprives the man of the contact with nature. As a way to escape from the turbulent reality of the urban system, the urban planning provides areas that allow the contact between man and nature like botanical gardens, parks, leafy squares, etc. These places, through specific analysis, are also called green areas. Thus, the main purpose of this research is to outline and analyze, through geoprocessing techniques, green areas of Americana, São Paulo considering them as indicators of urban environmental quality. This evaluation will be based on the methodology adapted by Bargos (2010) where products of remote sensing were used (aerial photos and satellite images) and it will be also based on field work and calculation of the amount of green areas. The software ESRI ArcGIS® will be used to create thematic maps connected with city’s green areas. Based on the results achieved in this study, it’s expected to contribute to the government of the city of Americana in order to provide benefits of analysis for decision makers in the context of urban planning aiming an improvement in the urban environmental quality, thus benefiting its entire population

Recuperação de áreas degradadas por erosão hídrica em propriedades produtoras de café nos municípios de Getulina e Vera Cruz - SP

The Paulista West region has suffered through the decades an intense process of deforestation when substituting native areas of Atlantic rainforest and Cerrado by agricultural cultivation, mainly coffee in the 20th century. This occupation process without planning and management of the soil resulted in serious erosion problems. Besides, the soil erosion promoted the reduction of agricultural production and the silting of rivers. This paper aims identify the factors of natural scope (geological, geomorphologic and pedologic characteristics) which participate in unleash of erosion process in two agricultural properties producers of coffee in order to apply mechanical techniques of recovery in erosive focuses of furrow and ravine kinds. One of the properties is at the city council of Getulina, located on the sandstones of Adamantina Formation; the other is at the city council of Vera Cruz, located on the sandstones of Marília Formation. However, taking into consideration the analysis of the natural dynamics, they are not enough to explain the complexity of the phenomena which are processed in the geographic space. It made indispensable the incorporation of socio-economic factors, such as the use and occupation process of the soil considering the society as landscape transformers. In order to better understand the importance of each one of the elements that contributes to the unleash of the studied erosions, it was collected soil samples in the areas, general descriptions and texture and morphologic analysis. Finally, it was elaborated the maps of the use and occupation of the soil and the vegetal coverage surrounding the properties studied. It was observed in the rural property of Getulina the substitution of the coffee by pasture that finds degraded. It, in addition to the cattle stomp, which changed the texture and density characteristics among the soil horizons, and the concentration of superficial water flow intensified the occurrence of ...

Mapeamento de áreas susceptíveis a sinistros climáticos no município de Rio Claro-SP

This work discourse on Civil Defense’ strategic planning and severe events in the city of Rio Claro – SP. In order to realize spatial analysis about its damages, registered by Civil Defense Department, it is being propose a methodological procedure by the use of Geographical Information System – Arc Gis 9.3.1. and another with SPRING 5.1.8.. The mapping of target areas and their impacts, during a period, have a great importance to the identification of possible risk areas as well as their use for logistic support to corps which is somehow involved to severe events and their victims, and to create a robust alert system

Classificação e mapeamento de áreas de risco de enchentes e inundações no bairro Jardim Inocoop - Rio Claro - SP

In the last few decades, Brazil has experienced an accelerated urbanization process in which many cities have grown in a disorderly way occupying environmentally fragile areas unsuitable for habitation. Anthropogenic actions such as high levels of impermeable soil, structural changes in watercourses, lack of riparian vegetation, illegal presence of trash and rubbish along the river banks added to irregular settlements in floodplains result in the rise of high risk areas. When accompanied by intense and prolonged rainfall phenomena, those areas have been the scenery of serious accidents such as floods. This study aims to classify the level of the risk of floods in the neighborhood of Jardim Inocoop, in the town of Rio Claro, São Paulo countryside, Brazil. One of the main technical support to tackle this issue is the identification and classification of the risks. In order to classify the risk level of flood in this case study, the methodology adopted was developed by the Ministry of Cities and Technology Research Institute, and take into account the arrangement of the hydrological scenario, vulnerability of households and dangerous process according to the distance of the houses from the axis of drainage. Therefore, the risk levels adopted to classify are listed below: very high (MA), high risk (A), moderate (M) and low risk (B). In conclusion, it is imperative to develop prevention plans in order to avoid or to minimize the damages caused by natural disasters. Therefore, the zoning of the risk sceneries remains as an important issue once it helps to identify the areas with high level risk of flood. Consequently, the occupation must be regulated where there is low or absent risk and it must be often forbidden where the high risk of flood is detected. Thus, the present study remains as an attempt to notify the risk of floods through its spatialization on a map, remainig...(Complete abstract click electronic access below)

Avaliação do Potencial do Banco de Sementes para Recuperação de Áreas Degradadas

O aproveitamento da serapilheira e do banco de sementes de remanescentes florestais tem se mostrado uma técnica alternativa promissora na restauração de áreas degradadas. O objetivo desse projeto foi avaliar o potencial do banco de sementes e serapilheira de um fragmento Florestal localizado no Município de Guará, SP, visando à restauração de áreas degradadas. Parcelas de 0,5 X 0,5m foram alocadas ao acaso em 40 pontos amostrais, sendo 20 na faixa mais externa (primeiros 5m dos limites do fragmento) e 20 no interior do fragmento. Dentro dos limites de cada parcela (0,25m2) foram coletados a serapilheira e a camada superficial do solo, numa profundidade aproximada de 10 cm. Após a coleta, essa amostra foi transferida para um viveiro, onde o material de cada uma das 40 parcelas foi homogeneizado e dividido em duas porções. Uma porção foi disposta em canteiros expostos a pleno sol e a outra em canteiros sob sombreamento artificial de 70%. Após 8 meses de acompanhamento do projeto, em 5 avaliações, foram registrados 137 morfoespécies pertencentes a 35 famílias. A forma de vida herbácea foi a mais abundante com 61,31 % dos indivíduos, a arbustivo-arbórea representou 12,40%, as lianas 8,03% e as indeterminadas 18,24%. A espécie arbórea Cecropia pachystachya (Urticaceae) foi a mais abundante dentre todas as formas de vida, com 27,36% do total. Os tratamentos apresentaram diferenças sutis em relação à riqueza das diferentes formas de vida. No geral, o material das áreas de borda e interior não apresentaram diferenças significativas em relação ao número de indivíduos germinados. Porém, diferenciaram-se em relação as porcentagens de indivíduos germinados nas diferentes formas de vida, com destaque para gramíneas, ciperáceas e lianas nas parcelas de borda. É possível utilizar o banco de...(Resumo completo, clicar acesso eletrônico abaixo)

Influência da distribuição espacial e de atributos de conectividade de áreas verdes municipais sobre a visitação pela população de Rio Claro, SP

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Estética e conforto de comunidades através e áreas verdes: o caso de Huánuco, Peru

The following work had as one of major goals to summarize everything that was learnt and experienced during the Geography Graduation Course and doing it the beginning of a journey towards understanding the phenomena relevant to individuals in society and the urban space over the nature. This work has the background one of the poorest places in South America, but that comes up reflections and interpretations regarding the life and geographical science. To understand this, it was necessary to rescue the local historic process, report their specificities, thus, drawing a parallel with the geographical theories. There was an attempt, therefore, to encompass the theoretical knowledge to understand the different socio-spatial identities, territories and socioeconomic contexts

Levantamento e análise dos padrões de qualidade nacionais e internacionais estabelicidos para reuso de efluentes e aproveitamento de água de chuva para fins não potáveis em áreas urbanas

The objective of this work is present and analyze the standards and guidelines associated with the protection of health of the user of waters less noble, for purposes other than drinking, and more specifically, the criteria descriptors of quality of these waters and the assessment of microbiological risk associated to its use aiming to establish, with bases and scientific criteria, the tolerable risk and the definition of standards for the microbiological quality. To this end, the author makes use of investigative exploratory method based on bibliographic survey and acquisition and posterior analysis, presentation and discussion about the topics discussed. The final text may inform and subsidise decisions regarding the definition of new values (preparation of new standards) and in the definition of appropriate technology

Levantamento de diferentes técnicas de controle de cupins subterrâneos (Isoptera, Rhinotermitidae) em áreas urbanas e rurais

Os cupins são conhecidos também como térmitas ou térmites, formam um grupo extenso e diverso e, atualmente, há mais de 2.800 espécies descritas que se distribuem em sete famílias. Pertencentes à ordem Isoptera, os térmitas são insetos eussociais que apresentam uma organização social altamente desenvolvida e vivem em ninhos denominados de cupinzeiros, geralmente, construídos no solo. Os cupinzeiros podem ser bem resistentes e estruturalmente complexos, e neles são encontrados indivíduos morfologicamente distintos adaptados a determinadas funções que constituem as diferentes castas (reprodutores, operários e soldados), além de indivíduos imaturos (“ninfas” e “larvas”) e ovos. A presença dos cupins nos ecossistemas é de extrema importância em diversos e diferentes processos. Em linhas gerais, os cupins são bastante importantes como decompositores de matéria orgânica fragmentando os detritos orgânicos, são mediadores da humificação, participam da ligação e formação de agregados e complexos minerais argilosos, e também atuam na fixação do nitrogênio, pois seus simbiontes têm a capacidade de fixar o gás nitrogênio da atmosfera, contribuindo, dessa forma, com a fertilidade do solo. Contudo, os cupins são bem conhecidos porque causam prejuízos enormes, ou seja, pelo potencial como pragas, danificando diversos tipos de materiais celulósicos e não celulósicos, além de edificações, monumentos, plantações, etc. Os cupins subterrâneos são os que causam maiores problemas, pois possuem grande capacidade de dispersão e são animais, que devido aos hábitos crípticos, têm o estudo e o controle dificultado. Além disso, estão entre os insetos mais abundantes, sendo a maioria pertencente à família Rhinotermitidae. O controle de cupins subterrâneos é um controle diferenciado, já que possuem o ninho sob o solo e com um grande número de indivíduos. A eliminação de uma parte da colônia muitas...

Avaliação da produtividade em áreas de campo sujo com diferentes históricos de fogo

Fire is a common event in different ecosystems and can both be caused by humans or have natural sources.. In many of these ecosystems, natural fires are an important factor that determines the vegetation. The reduction of tree cover by fire for example, resulted in the evolution of several species-rich ecosystems, dominated by C4 grasses. However, the fire caused by human actions may have greater intensity and lead to negative responses of vegetation, since man changed the fire regime in many parts of the world, such as in the Cerrado. The passage of fire can benefit herbaceous and woody seedlings that cannot compete with the dominant grass layer. It removes the dead biomass and litter (major components of the fuel load), opening up spaces within the grass matrix that allow the establishment of other species. After some time without fire, an increase in shrub cover and decrease herbaceous layer can be observed. One of the major consequences of the absence of fire in savanna and grassland ecosystems is the accumulation of flammable dead biomass (mainly composed of graminoids), which will probably be the fuel load of the next burning thus, fires will be more intense and hotter. Moreover, very frequent burns lead to a reduction in the frequency and density of grasses. Therefore, this study aimed to assess the quantity and quality of biomass in areas with different fire history (fire exclusion for 2 and 7 years) in areas of campo sujo in central Cerrado. Plots (1x1m) were established in both areas and all aboveground biomass of each plot was cut at ground level and put in paper bags in the field. In the laboratory, the material was sorted into live and dead biomass. In addition, live biomass was separated into different functional groups (graminoids, forbs, Vellozia spp, palm and shrubs). The material was oven dried for two days at 80°C and subsequently weighed. In both areas, we found a dominance of graminoid and dead biomass. The area...

Uso de sistemas construídos de áreas alagadas (Constructed Wetland System - CWS) para tratamento de efluentes

A large proportion of fresh water is greatly impaired due to increasing pollution; this could be minimized through the expansion of investment in sanitation programs. But the major problem faced by third world countries and developing ones in this respect, is the high cost of projects and their implementation. In an attempt to find a simple technology, efficient and inexpensive, this study aimed to verify the effectiveness of using constructed wetland systems (CWS) for removal of bacteria and nutrients from sanitary sewer effluent from the STS Piracicamirim - Piracicaba - SP. The installation of prototypes was followed, and testing prior to regularize the flow held, but due to malfunction of these and outages of the STS activity can not evaluate the effectiveness of both as to the parameters proposed: temperature, pH, dissolved oxygen, conductivity, total dissolved solids (TDS), nitrite, nitrate, ammonia, total nitrogen, total phosphorus, chemical oxygen demand (COD), sulfide, sulfate, biochemical oxygen demand (BOD), total coliform and Escherichia coli. To establish results about the effectiveness of these types if the system were conducted literature reviews of papers published with the same theme. Analysis of these results showed fairly good efficiencies in wastewater treatment, especially for nutrients and coliforms