Artigos científicos, teses e dissertações
Publicados nas melhores instituições de ensino

This research is the result of an interest in knowing and analyzing the new Brazilian hydro resources management, proposed by the Política Nacional de Recursos Hídricos (Hydro Resources National Policy), in 1997, substituting the former Código das Águas (Water Codes) of 1934. Foc...

This work aimed to analyze the Environmental Management indicators of municipalities fully or partially inserted in the watershed of Japaratuba River in the State of Sergipe.Through specific objectives were identified and measured the indicators of institutional capacity and envi...

Present work investigates the use of geographic information system (GIS) - nowadays a necessary technique for spatial data analysis, broadly used as decision-making aid in many fields - as a tool for watershed management for disposal or beneficial use of water treatment plants (W...

The modern problems are complex and require solutions that reflect impacts on socioeconomic, environmental, and political-institutional aspects in terms of their different degrees of importance. Within this context, a crosscutting analysis of concepts related to sustainable devel...

Areas under intensive tobacco crop cultivation have been impacting the water balance and increasing soil erosion in Southern Brazil. Application of large amounts of mineral fertilizers, higher than the tobacco requirement, contributes to excessive phosphorus loads in soil and wat...

The soil management systems involve changes in soil physico-hydrical properties. The objective of this study was (i) characterize the soil physico-hydrical properties in the layer 0-5 cm for different soil management systems in the Cândido Brum watershed, (ii) build a map with th...

This paper discusses the factors that have influenced the feasibility of implementing the water resources management model, identifying a situation in which the committee is the North Reconcavo-Inhambupe Watershed (CBHRNI) in the state of Bahia, about of the decentralized managem...

The main objective was oriented procedures in environmental education and to make perception environmental of different social group multivariable data analysis. This work was focused on field research, qualitative and quantitative research and, the Capituva watershed study. The ...

The Alto Descoberto Watershed supplies water for approximately 70% of the population of the Distrito Federal. Land use in this watershed has varied over the last three decades: agriculture, then urbanization processes, and more recently uncontrolled rural land parceling. These ty...

In the 1990´s, Joinville, an industrial city settled in the brazilian State of Santa Catarina, has watched a controversy about the installation of a hidroelectric plant near the source of Cubatao river – responsible for 70% of the city water supply. Despite of the fact that city ...

The inadequate management of the soil and water resources has produced serious ecological, economical and social impacts. Watersheds are important environmental units which supply water for reservoirs, urban regions and farms. Water cycle dynamic in watershed is being seriously a...

...

Resumo Este estudo objetivou discutir as principais contribuições e limitações na atuação dos grupos de bacias hidrográficas brasileiros. Para isso, foram realizadas duas revisões integrativas. A literatura revelou que, na maioria dos casos, estes grupos não estão conseguindo con...

Understanding the behavior of Cryptosporidium oocysts in the environment is critical to developing improved watershed management practices for protection of the public from waterborne cryptosporidiosis. Analytical methods of improved specificity and sensitivity are essential to t...

...

The Piranga River watershed lies within a region in Brazil which requires special attention because of negative environmental impacts from uncontrolled deforestation during the expansion of the agricultural activity, inadequate soil management and untreated effluent discharge, an...

...

Areas susceptibility to water erosion and strong pressure of soil use, as in Southern Brazil, where there is cultivation of tobacco, are prone to degradation of the natural resources. The objective of this dissertation was to evaluate the unsustainability of the natural resources...

Water samples were collected from four locations on two rivers in Washington State and analyzed by membrane filtration-immunofluorescence assay to establish Cryptosporidium oocyst concentrations. Sampling locations were selected to evaluate effects of watershed character, from pr...

This project uses as core study area the Moinho Stream Watershed located in Nazaré Paulista, São Paulo State, Brasil, which is part of the Cantareira System Environmental Protected Area. This region contains springs and watersheds of regional importance, which, associated with it...

The main hypotheses of the present study regarding the evaluation of the efficiency of riparian forest to sediment retention were: 1. Riparian Forest is an efficient system for sediment retention in watersheds; 2. Different Riparian Forests widths present different efficiencies f...