Estimativa do balanço hídrico de uma sub-bacia da Bacia Hidrográfica do Rio Ipanema com o Modelo SWAT

Sousa, Wanderson dos Santos; Viana, Jussara Freire de Souza; Silva, Rafael Rodrigues da; Irmão, Ricardo Alexandre

doi:10.24221/jeap.3.1.2018.1708.146-154

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…The results of primary simulation show that surface runoff and flow have behaviors that are similar and are directly related to the pattern of precipitation distribution (Figure 2). The period of high surface runoff corresponded to the rainy months (October through March), for these months the SWAT simulation produced the greater differences between observed values; similar results were obtained by Sousa et al (2018) even when the authors compared two methods of rainfall simulation. The hydrological results tend to be better when there is more than one rainfall station in the basin, and the results also depend on the size of the drainage area.…”

Section: Resultssupporting

confidence: 64%

Land use and water quality in watersheds in the State of São Paulo, based on GIS and SWAT data

2019

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Land use influences the quality and availability of water resources, but Brazil has made little progress in integrated watershed management. This study therefore applied geoprocessing for land-use classification and evaluated the impact on the hydrological balance in order to contribute to the integrated management of water resources. Using GIS tools, two drainage areas from the water catchment points of two municipalities, Santa Cruz das Palmeiras and Piedade, were delimited; land-use mapping was carried out using the supervised classification method of satellite images, and the SWAT model was applied for hydrological simulation. The methods used were appropriate. The surface runoff was related to the absence of vegetation and the predominance of exposed soil. The relationship between land use/land cover and the hydrological balance was evidenced, especially the impact of agricultural activities and the lack of natural vegetation in the surface runoff.

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Section: Resultssupporting

confidence: 64%

Land use and water quality in watersheds in the State of São Paulo, based on GIS and SWAT data

2019

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“…Nesse contexto a simulação de cenários e previsão de possíveis impactos relacionados a mudanças no uso e ocupação dos solos, se torna bastante relevante. Com isso a utilização de modelos hidrológicos aparece como uma importante ferramenta de gestão de bacias hidrográficas, devido a sua rapidez de obtenção de resultados, principalmente, quando estes são associados a sistemas de informações geográficas (SIGs), permitindo a simulação para locais remotos (Sousa et al, 2018).…”

Section: Issn:1984-2295unclassified

Avaliação de Impactos de Mudanças no Uso e Manejo do Solo Sobre as Vazões da Bacia Hidrográfica do Ribeirão José Pereira, Utilizando o Modelo Swat.

Passos

2021

Rev. Bras. Geog. Fis.

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Diversos processos naturais podem causar mudanças nos fluxos hidrológicos dentro de bacias hidrográficas, sendo estas ainda mais afetadas devido a ações antrópicas que mudem as suas características físicas, principalmente, o tipo e o uso do solo. Neste contexto, este trabalho apresenta uma calibração de um modelo de transformação chuva x vazão e posterior simulação para a estimativa das vazões na bacia hidrográfica do ribeirão José Pereira, em Itajubá, sul de Minas Gerais, utilizando o modelo distribuído Soil and Water Assessment Tool (Swat). Foram gerados cinco cenários de uso e ocupação do solo, que foram idealizados a partir de características observadas na bacia ou de tendências futuras de ocupação, a saber, o cenário do estado atual, de manejo do solo, de recuperação das áreas de preservação permanente (APPs) de margens de rios, de substituição total por floresta e de crescimento urbano. Os resultados indicam que o modelo Swat pode ser utilizado na simulação das componentes hidrológicas de bacias hidrográficas de pequeno porte, e ainda que o manejo agrícola e o reflorestamento da bacia são mais eficientes na diminuição do escoamento superficial do que a recuperação das APPs, chegando a uma diminuição de aproximadamente 40% nas vazões máximas simuladas. Impact Assessment of Changes in Land Use and Management on the Losses of the Water Source of the José Pereira Stream, Using the SWAT Model A B S T R A C TSeveral natural processes can cause changes in hydrological flows within hydrographic basins, which are even more affected due to anthropic actions that change their physical characteristics, mainly, the type and use of the soil. In this context, this work carries out an analysis of the impact on the flows of a small-scale hydrographic basin (River José Pereira) due to changes in land use and occupation, using the distributed model Soil and Water Assessment Tool (SWAT). Five land use and occupation scenarios were generated, which were designed based on characteristics observed in the basin or future occupation trends, namely, the current state scenario, soil management, recovery of permanent preservation areas (APPs) of river banks, total replacement by forest and urban growth. The results indicate that the SWAT model can be used in the simulation of the hydrological components of small hydrographic basins, and that agricultural management and reforestation of the basin are more efficient in reducing runoff than the recovery of APPs, reaching a decrease of approximately 40% in the maximum simulated flows.Keywords: hydrological modeling, rainfall, SWAT, land use and occupation.

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“…The hydrological model Soil Water Assessment Tools-SWAT is very widespread in Brazil and due to the need for adjustments in the results obtained through modeling and the observed data, it is necessary to carry out a calibration. Different studies have been developed to calibrate the swat model to Brazil [9], including [10][11][12], and for the northeast of Brazil [13], and for the Pernambuco basins [14][15][16]. The intention was and is to provide a system that can facilitate the monitoring and planning of watersheds.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Water Availability and Environmental Influence on People’s Lives in a Small Basin in the Hinterland of Pernambuco, Using the SUPer and UAV

Luz,

Miranda,

Galvíncio

2023

Applied Sciences

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Water scarcity is a worldwide concern considering that water is a limited resource and essential for life. In Brazil, approximately 30% of its population lives in a semi-arid region covering about 20% of the country’s territorial extension, which is one of the areas that most suffers from a lack of water. The lack of water, mainly in the northeast of the country, has been a problem for years, as people who live in this territory suffer for months from the poor distribution of this resource, which increases the degree of inequality between the regions of the country. The research aims to show the effect of the hydrological cycle on the quality of vegetation and how such processing can end up affecting people’s lives and the environment. This study carried out a temporal analysis from 1961 to 2021. The hydrological model system used to assess water availability was the Pernambuco Hydrological Response Units SUPer-System. UAV (Unmanned Aerial Vehicles) was used to view the relationship between living and environmental conditions. The results showed a difference between the water balance today and in the future due to climate change. Thus, it is concluded that climate change will have different impacts at a small scale as well as on people’s living conditions as a result of different characteristics of the environment. It is very important to carry out studies on a detailed scale to provide better public policies for mitigating the effects of climate change on people’s lives.

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Estimativa do balanço hídrico de uma sub-bacia da Bacia Hidrográfica do Rio Ipanema com o Modelo SWAT

Cited by 6 publications

References 12 publications

Land use and water quality in watersheds in the State of São Paulo, based on GIS and SWAT data

Land use and water quality in watersheds in the State of São Paulo, based on GIS and SWAT data

Avaliação de Impactos de Mudanças no Uso e Manejo do Solo Sobre as Vazões da Bacia Hidrográfica do Ribeirão José Pereira, Utilizando o Modelo Swat.

Assessment of Water Availability and Environmental Influence on People’s Lives in a Small Basin in the Hinterland of Pernambuco, Using the SUPer and UAV

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