Modeling land use change impacts on a tropical river basin in Brazil

Sousa, Lucas Farias de; Santos, Carlos Amilton Silva; Gomes, Ronaldo Lima; Rocha, Felizardo Adenilson; Jesus, Raildo Mota de

doi:10.1007/s13762-020-02997-2

Cited by 3 publications

(3 citation statements)

References 52 publications

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“…s −1 , respectively, that is, SWAT overestimated it approximately by 11%. However, an overestimation of Q 90 was also obtained in other studies using the SWAT model, such as Santos et al (2018) in the Brazilian semi‐arid region and Sousa et al (2020) carried out in a tropical basin. In these studies, the simulated Q 90 exceeded by 24% and 18%, respectively, its observed values.…”

Section: Resultsmentioning

confidence: 56%

“…However, an overestimation of Q 90 was also obtained in other studies using the SWAT model, such as Santos et al (2018) in the Brazilian semi-arid region and Sousa et al (2020) carried out in a tropical basin.…”

Section: Sm-tarb Hydrological Behaviour Simulated With Swatmentioning

confidence: 59%

“…Interpolated Observed Dataset (IOD) developed by Xavier et al (2016) has been applied in several studies in Brazil. In a hydrological simulation developed in the Atlantic Forest, Sousa et al (2020) used the IOD to fill the gaps in the precipitation time series obtained from the National Water Agency and Sanitation (ANA) and as input data in the hydrological model to solve the problem of low‐spatial resolution of the rain gauges. Avila‐Diaz et al (2020) used IOD as a reference for assessing trends of climate extremes across Brazil employing climate reanalysis.…”

Section: Introductionmentioning

confidence: 99%

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Quantifying the climate change‐driven impacts on the hydrology of a data‐scarce watershed located in the Brazilian Tropical Savanna

Amorim

Viola

Junqueira

et al. 2022

Hydrological Processes

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Tropical savannas are one of the most affected biomes worldwide by anthropogenic activities. The Cerrado biome, also referred to as the Brazilian Tropical Savanna, is one of the world's environmental hotspots due to its high biodiversity and endemism. Also, it is essential for water resources in South America and hydropower generation in Brazil. In this context, this study aimed to evaluate possible changes in water availability in the Cerrado due to the impacts of climate change throughout the 21st century under different emissions scenarios. The Soil and Water Assessment Tool (SWAT) was calibrated and validated in a watershed encompassing 51 237 km 2 . The regional climate models (RCMs) Eta-HadGEM-ES and Eta-MIROC5 under the representative concentration pathways (RCPs) 4.5 and 8.5 were used to simulate the streamflow changes in three time slices

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Section: Resultsmentioning

confidence: 56%

Section: Sm-tarb Hydrological Behaviour Simulated With Swatmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

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Quantifying the climate change‐driven impacts on the hydrology of a data‐scarce watershed located in the Brazilian Tropical Savanna

Amorim

Viola

Junqueira

et al. 2022

Hydrological Processes

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Evidence of water surface and flow reduction in the main hydrographic basin of the Brazilian savannah (Cerrado biome): the Araguaia river

dos Santos Teixeira,

Vieira,

de Souza

et al. 2024

Hydrobiologia

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Potential Impacts of Land Use Changes and Climate Variations on Flows in a Basin in Northeastern Brazil

Sousa

Ferraz

Santos

et al. 2022

Preprint

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The present study sought to evaluate the sensitivity of several ecologically relevant flow parameters to land use changes and climate change. The study was carried out in the Cachoeira River Basin located in the Atlantic Forest biome with predominately agricultural activities in its drainage area, in the state of Bahia, Brazil. To achieve the proposed objective, the Soil and Water Assessment Tool (SWAT) model was used to calibrate and validate the historical flow series from 1985 to 2015, create the simulation scenarios, and subsequently evaluate the hydrological changes in the different scenarios proposed through the 19 indices in the Indicators of Hydrologic Alteration (IHA) software. The results reveal that the maximum flows of 30 and 90 days, as well as the number of reversals, will be the most affected by future climate conditions. These significant changes indicate that the flows are mainly linked to changes in precipitation patterns in the basin. Thus, the negative medium and long-term trend of these flows can alter the availability of water in the basin and affect not only aquatic life but also the socio-economic development of the basin, with consequences for the water supply to cities and riverside populations that use its tributaries as a source of food, income, and leisure.

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Modeling land use change impacts on a tropical river basin in Brazil

Cited by 3 publications

References 52 publications

Quantifying the climate change‐driven impacts on the hydrology of a data‐scarce watershed located in the Brazilian Tropical Savanna

Quantifying the climate change‐driven impacts on the hydrology of a data‐scarce watershed located in the Brazilian Tropical Savanna

Evidence of water surface and flow reduction in the main hydrographic basin of the Brazilian savannah (Cerrado biome): the Araguaia river

Potential Impacts of Land Use Changes and Climate Variations on Flows in a Basin in Northeastern Brazil

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