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Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the SWAT model

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International Journal of Sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de oliveira Serr?o Madson Tavares Silva Thomás Rocha Ferreira lorena concei??o paiva de ataide Cleber Assis dos Santos Aline Maria Meiguins de Lima Vicente de Paulo Rodrigues da Silva Francisco de Assis Salviano de Sousa denis José Cardoso Gomes Academic Unit of Atmospheric Sciences Federal University of Campina Grande department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth System Science Center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULC) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULC changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** Soil and Water Assessment Tool (SWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULC altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULC changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the SWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling Sediment yield Amazon basin SWAT model

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Effect of Environmental Factors on Rock-inhabiting Fungal Communities from Brazilian Soapstone Samples

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Journal of Environmental Science and Engineering(B) 2017年第2期6卷 55-71页

作者： Douglas Boniek lorena Vivien Neves de oliveira Noelly de Queiroz Ribeiro Christiane Abreu oliveira paiva Ubiraci Gomes de Paula Lana Antonio Femando Batista dos Santos Maria Aparecida de Resende Stoianoff Post-Graduate Program in Microbiology Institute of Biological Sciences Federal University of Minas Gerais UFMG BeloHorizonte 31270-901 Brazil Embrapa Milho Sorgo Brazilian Agricultural Research Corporation Sete Lagoas 35701-970 Brazil Faculty of Engineering and Architecture Foundation of Education and Culture of Minas Gerais Belo Horizonte 30310-190Brazil department of Microbiology Institute of Biological Sciences Federal University of Minas Gerais UFMG Belo Horizonte31270-901 Brazil

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