Diagnóstico ambiental da bacia hidrográfica do córrego do Bugre em Alumínio - SP

Pós-graduação em Ciências Ambientais - Sorocaba

Diagnóstico da qualidade da água da microbacia do Córrego da Aldeia em Fernandópolis-SP

Pós-graduação em Engenharia Civil - FEIS

Qualidade hídrica e morfometria da microbacia do córrego da Fazenda Glória, Taquaritinga-SP

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Herbicide detection in groundwater in Córrego Rico-SP watershed

Due to the large amount of pesticides applied in agriculture, mainly herbicides, there is a growing concern about a possible environmental contamination with these products, including water bodies. Given the above, the aim of the present work was to detect and quantify herbicides through multiresidue analysis in water samples collected in semi-artesian wells and springs in a rural area of the city of Jaboticabal (SP). Samples were collected from 32 wells and 13 water springs, in three different seasons: October 2010, February 2011 and May 2011. Additionally, samples at a residence in the urban area were also collected. Analysis using high performance liquid chromatography coupled to mass spectrometry was performed and herbicides ametryn, amicarbazone, clomazone, diclosulan, diuron, hexazinone, imazapic, imazapyr, isoxaflutole, S-metolachlor, sulfentrazone, sulfometuron-methyl, and tebuthiuron were evaluated. In semi-artesian wells, an incresed quantity of herbicides was found in comparison with the water springs. Among the tested herbicides, hexazinone, imazapyr and sulfentrazone were detected in measurable amounts in accordance with the analytical method applied, while clomazone was the most common herbicide being detected in more than 60% of the samples. Ametryn, diuron and amicarbazone herbicides were also detected. Diclosulan, imazapic, isoxaflutole, S-metolachlor, sulfometuron-methyl, and tebuthiuron were not detected in any sample. Inappropriate use of these products without prior knowledge of the behavior of the soil can lead to groundwaters and water springs contamination, thus an ongoing monitoring of this resource becomes very important.

Análise do aporte de sedimentos na bacia hidrográfica do córrego Assistência, SP: caso do Polo Cerâmico de Santa Gertrudes

Pós-graduação em Geociências e Meio Ambiente - IGCE

Planejamento Ambiental da Bacia Hidrográfica do Córrego Guaiçarinha, Município de Álvares Machado, São Paulo, Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Interferência do uso da terra para as inundações na área urbana do córrego da servidão, Rio Claro (SP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Implicações geomorfológicas das alterações do escoamento superficial pela urbanização: análise dos processos erosivos na bacia hidrográfica do córrego Tucunzinho (São Pedro - SP)

This paper presents an evaluation of the geomorphological implications of urban runoff on the evolution of linear erosion processes in peri-urban areas. The Tucunzinho watershed (São Pedro/SP) case was chosen because it presents linear erosive forms in which the dynamic is associated with urban expansion into fragile areas and implantation of inadequate dissipation devices. The method proposed by the Soil Conservation Service (SCS) was adopted to obtain the Curve Number (CN) and runoff hydrographs of different sectors of the basin. The coverage classification (use and occupancy) was based on analysis of aerial photographs of two periods (1962 and 2006, updated in the field in 2011). The IPHS1 model was used for the simulation and analysis of the hydrological behavior for both the pre-urban occupation and the current occupation. The hydrogeomorphological analysis helped understand the influence of the urban run-off on the erosion dynamics, clearly showing the ineffectiveness of dissipation energy devices in the area, which has a natural susceptibility to erosion due to litho-soil characteristics.

Teores e quantidade de alguns elementos no córrego Lavapés, sub-bacia do rio Sorocaba, São Paulo, Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Processos geodinâmicos associados a mudanças de uso da terra: o caso da microbacia hidrográfica do Córrego Caçula (Ilha Solteira - SP)

Pós-graduação em Engenharia Civil - FEIS

Determinação do grau de risco a enchentes na bacia do Córrego Morumbi, município de Piracicaba-SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise de uso da terra e sua interferência em enchentes na região do Córrego Lavapés, Rio Claro (SP)

The development of cities is initially nearby rivers and with the intensification of the urbanization process occurs the soil sealing, leading to an increased level of water runoff, and, consequently, in a greater number of floods. The main goal of this study is to verify the interference of land occupation in the floods of the Lavapés Stream basin, Rio Claro (SP), in five temporal series, 1962, 1972, 1988, 1995 and 2014. The characterizations of land use were made from photo-interpretation and, thus, were produced thematic maps on scale 1: 20.000. The description of the Soil Conservation Service, 2007 was the basis for the classification of land use, thus achieving the CN parameter (Curve Number) used in hydrologic modeling done in IPHS1 program. The results indicate that soil sealing associated with the growth of the city of Rio Claro are responsible for increasing of the discharge in the Lavapés Stream basin and floods in this watershed

Mapping for environmental planning the basin of Córrego Rico, São Paulo

The landuse is usually an human phenomenon that occurs over the years, due to population increase. The territorial knowledge is needed, and is the first step for environmental planning to implement conservation practices on agricultural production system. This study aimed to develop thematic maps as: hydrography, soil, slope, land use, and subbasins to obtain the main geomorphic morphometric data (physical) of the Córrego Rico Watershed. The techniques of remote sensing and geographic information system were used to elaborate the maps and for calculating the geomorphological data, as area, altitude and length of the drainage net, which were submitted to multivariate statistics. The Córrego Rico Watershed has an area of 563 km2 . The predominant slopes were 3-8%, with 55.3% of the total area; and the main use was sugar cane. The soils that predominate in the area are Oxisols towards the Mogi-Guaçú river mouth and Ultisols at the upstream of the basin.