Edson de Oliveira VIEIRA - Academia.edu (original) (raw)

Papers by Edson de Oliveira VIEIRA

A todos do alojamento da EMBRAPA que fizeram parte do meu dia-adia durante a execução deste traba... more A todos do alojamento da EMBRAPA que fizeram parte do meu dia-adia durante a execução deste trabalho.

Nativa: Pesquisas Agrárias e Ambientais, 2019

Springer eBooks, Jun 13, 2019

This chapter describes the underlying theoretical concepts, the basics, and the responsibilities ... more This chapter describes the underlying theoretical concepts, the basics, and the responsibilities of IWRM. What principles guide the management and development of global efforts for the implementation of IWRM? This chapter also presents some tools needed for effective IWRM and how the economic, social, and environmental conditions of a basin are related to IWRM. What are the main governance and public roles in IWRM? This chapter identifies some of the key challenges of implementing IWRM.

Irriga, Sep 30, 2009

Hídricos e estabeleceu o Sistema Nacional de Gerenciamento de Recursos Hídricos e, ao definir pri... more Hídricos e estabeleceu o Sistema Nacional de Gerenciamento de Recursos Hídricos e, ao definir princípios básicos para uma gestão eficaz das águas, no Brasil, adotou a bacia hidrográfica como unidade de planejamento de políticas públicas, a fim de garantir o direito ao acesso à água de boa qualidade para as atividades produtivas, bem como, para sua utilização pelas gerações futuras. Sabe-se que uma bacia hidrográfica é um sistema complexo e sofre influência de fatores internos e externos, que podem comprometer as diversas relações de equilíbrio do mesmo, e, possivelmente, culminar em sua degradação. O presente trabalho teve como objetivo caracterizar a fisiografia da bacia hidrográfica do córrego do Malheiro, no município de Sabará-MG. Para compreender os processos biológicos, físicos e químicos que interferem no ciclo hidrológico dessa unidade geográfica foram estudados os parâmetros fisiográficos: área de drenagem, perímetro, comprimento do leito principal, rede de drenagem, densidade de drenagem, forma da bacia hidrográfica, número de ordem, declividade equivalente, tempo de concentração, extensão do percurso principal e amplitude altimétrica. Os resultados demonstraram a necessidade de medidas efetivas de recuperação e preservação da cobertura vegetal, além de investimentos em educação ambiental para a população. UNITERMOS: Bacia de drenagem. Morfometria. Malheiro, córrego do-Sabará/MG.

... ii Aos meus pais e irmãos. À minha esposa Cidinha, pelos momentos em que sempre permaneceu a ... more ... ii Aos meus pais e irmãos. À minha esposa Cidinha, pelos momentos em que sempre permaneceu a meu lado. Aos meus filhos Matheus, Pedro e Davi motivo maior de minha busca constante ... Augusta, Geraldo Magela, Adilson, Camboim, Salomão, Gessionei, pela amizade, ...

Integrated Water Resource Management, 2019

Journal of Hydrology: Regional Studies, 2018

Extensive regional development, mainly expansion of irrigated areas and urban population, has res... more Extensive regional development, mainly expansion of irrigated areas and urban population, has resulted in low water availability and caused water conflicts since the 1980s. Therefore, it was necessary to enact the Water Resources Plan of the Rio Verde Grande in 2011. The plan provided actions to improve water availability and meet increased water demand but there have been no studies on the sustainability of these policies. It was evaluated the future of the water management and calculate the sustainability index for water resources in the Rio Verde Grande Basin (RVGB), Brazil. New hydrological insights for the region: The water demand and available water have been compared and evaluated for activities in the Water Resources Plan (WRP) based on three different improvement of available water scenarios. These scenarios include water imports and the construction of channels and reservoirs. A sustainability index was used to evaluate and compare alternative plans for future water availability and water supply in these scenarios, considering measures of reliability, resilience, vulnerability and maximum deficit. The SI has identified the best scenario foreseen in the WRP for the RVGB that will improve the availability of water through 2030 having positive impact to water users of the basin. The results also indicate that the increase in available water will not result in significant improvements of sustainability of water resources by the implementation of the policies proposed in the WRP for the RVGB. 1. Introduction The Rio Verde Grande Basin (RVGB) provides significant agricultural production for important cities, such as Montes Claros (400,000 inhabitants), primary through irrigation. Extensive regional development and urban expansion have caused low water availability in regional rivers, causing water conflicts that have been recorded since the 1980s. RVGB presents several problems of water resources as a high variability in time and space of water resources (Many years of the drought), activities that demand a lot of water (as irrigation with 90% of water consuption) and there is almost no infrastructure for water resources. To solve these problems, in 2011, the "Water Resources Plan for the Verde Grande River Basin (WRP)" was approved, which aimed to articulate the instruments of the National Water Resources Policy and propose a series of actions to improve available water in the basin (ANA, 2016a,b). In the Water Resources Plan of the Rio Verde Grande, three scenarios were envisaged for implementing action. Interventions that were already underway, to increase water supply were considered in the Trend Scenario. Based on the Trend Scenario, two other

Revista Brasileira de Engenharia Agrícola e Ambiental, 2009

Este trabalho foi conduzido com o objetivo de verificar a ocorrência da associação da presença do... more Este trabalho foi conduzido com o objetivo de verificar a ocorrência da associação da presença do carbofuran no perfil do solo com a forma e o tempo de aplicação do pesticida e, ainda, parâmetros de eficiência dos diversos sistemas de irrigação utilizados no Distrito de Irrigação do Gorutuba (DIG) em Janaúba, MG. Selecionaram-se 14 propriedades, que apresentaram grande variabilidade nos parâmetros de desempenho da irrigação e na distribuição do carbofuran no perfil do solo. Dos parâmetros analisados, o TAP (tempo de aplicação do produto), a QIAAP (quantidade do ingrediente ativo aplicado) e o Perc (Lâmina de irrigação percolada), apresentaram nítida associação com a distribuição do pesticida no perfil do solo. Esses parâmetros mostraram que produtores rurais dentro do DIG, os quais aplicam água em excesso via irrigação mal manejada e utilizam pesticidas de forma indiscriminada, não respeitando as recomendações técnicas nem o período de carência entre as aplicações, podem estar polui...

Ambiente e Agua - An Interdisciplinary Journal of Applied Science, 2007

The objective of this work was to outline and to characterize the sub-basins of the Alto Rio Jama... more The objective of this work was to outline and to characterize the sub-basins of the Alto Rio Jamanxim hydrographic basin and to code them using the concept of "otto-basins", as well as to quantify the deforestation area and the increase in roads extension in its drainage area from 1999 to 2005. The work was based on data of river's and road's network, digital elevation model (DEM), and four TM/Landsat-5 images from 1999 and 2005. The outline of the boundaries and the hydrologic parameters of the Basin were based on a 1:250,000 DEM. Results have shown that nine sub-basins have been outlined in the study area, coded up to level 5 (otto-basin code system) and identifiers varied from 44291 to 44299. Deforestation by human activities totaled 635 km 2 (11% of the Basin) up to 1999 and to 1,257 km 2 up to 2005, therefore, an increase of 622 km 2 or 98% between these two dates. Regarding the road network, a total extension of 1,685 km was mapped up to 1999 and 3,638 km up to July 2005

Watersheds that are located within urban areas require hydrological studies to predict extreme ev... more Watersheds that are located within urban areas require hydrological studies to predict extreme events that support decision making in order to better urban planning. Given that the objective of this study was to determine peak flows for the basin stream Melancias / MG, located in the city of Montes Claros / MG, along a series of 27 years and for different return periods. The methodology included the acquisition of images Landsat-5/TM orbit / point 218/72 for the year 2011, geometric and radiometric corrections performed in software ENVI 4.2. From the color composite RGB-453, was classified automatic supervised by the GML algorithm, the surface divided into four distinct classes (impermeable areas, sparse vegetation and bare soil, vegetation and water bodies). With this data it was possible to simulate peak flows for return periods of 5, 50 and 100 years, for the years 1984, 1990, 2000 and 2011. Note that there was a significant increase in maximum flows of the project, since the bas...

Vigilância e Saúde Ambiental: no contexto da educação, 2021

Anais do IV Inovagri International Meeting - 2017, 2017

The Water Evaluation and Planning system (WEAP) allows the integrated analyze of a series of hydr... more The Water Evaluation and Planning system (WEAP) allows the integrated analyze of a series of hydrological processes of a physical nature with the water resources management, along with the installed infrastructure. Given the importance that the hydrological models have currently received by the scientific community and decision makers working with water resources, knowledge of the parameters that most interfere with their results is of great importance. In this sense, the objective of the present work was to perform a sensitivity analysis to identify the parameters that most influence the water balance of the WEAP model and, consequently, its importance in the results generated in the Alto Verde Grande (AVG) subbasin. The results show that the flow estimated by the WEAP model is influenced especially by the resistance factor to the flow (RRF), followed by water capacity in the soil (SWC),. For a minimum variation, equivalent to-30% of the RRF default value, a simulated flow increase of 51% was observed, considering the simulated flow based on the standard condition. The conductivity of the lower layer (DC) was not sensitive to the data simulated by the model for the AVG sub-basin.

O crescimento urbano desordenado e evidente em inumeras cidades brasileiras, sendo comum a ocupac... more O crescimento urbano desordenado e evidente em inumeras cidades brasileiras, sendo comum a ocupacao sobre areas de risco como encostas de morros, e, principalmente, margens de rios e corregos. Diante disso o objetivo do presente trabalho foi avaliar a variacao do coeficiente de escoamento super ficial provocado pela urbanizacao na bacia do Corrego Melancias, municipio de Montes Claros, Minas Gerais, a partir dai determinar as vazoes maximas para os periodos de retorno de 5, 50 e 100 anos. A metodologia consistiu da aquisicao e classificacao das imagens LANDSAT-5/TM para quatro anos (1984, 1990, 2000 e 2011). A Bacia do Corrego Melancias/MG apresentou valores crescentes de vazao maxima, em funcao do aumento do periodo de retorno e do aumento das areas impermeabilizadas Ao longo do periodo de estudo observou-se um incremento de vazao, apresentando uma vazao acumulada, para o ano de 2011, de 239,42 m³ s-1 para o periodo de retorno de 5 anos e uma vazao de 447,71 m³ s -1 para o periodo ...