Land use and climate change impacts on runoff and soil erosion at the hillslope scale in the Brazilian Cerrado

The Science of the Total Environment
Jamil A A AnacheEdson Wendland

Abstract

Land use and climate change can influence runoff and soil erosion, threatening soil and water conservation in the Cerrado biome in Brazil. The adoption of a process-based model was necessary due to the lack of long-term observed data. Our goals were to calibrate the WEPP (Water Erosion Prediction Project) model for different land uses under subtropical conditions in the Cerrado biome; predict runoff and soil erosion for these different land uses; and simulate runoff and soil erosion considering climate change. We performed the model calibration using a 5-year dataset (2012-2016) of observed runoff and soil loss in four different land uses (wooded Cerrado, tilled fallow without plant cover, pasture, and sugarcane) in experimental plots. Selected soil and management parameters were optimized for each land use during the WEPP model calibration with the existing field data. The simulations were conducted using the calibrated WEPP model components with a 100-year climate dataset created with CLIGEN (weather generator) based on regional climate statistics. We obtained downscaled General Circulation Model (GCM) projections, and runoff and soil loss were predicted with WEPP using future climate scenarios for 2030, 2060, and 2090 consid...Continue Reading

References

Aug 10, 2007·Proceedings of the National Academy of Sciences of the United States of America·David R Montgomery
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Apr 19, 2017·Proceedings of the National Academy of Sciences of the United States of America·Colin E Hughes
Aug 16, 2017·Scientific Reports·André AlmagroStefan Hagemann

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Citations

Apr 16, 2020·PloS One·Devraj Chalise, Lalit Kumar
Nov 23, 2021·The Science of the Total Environment·Elias Rodrigues da CunhaKarina Dos Santos Falcão

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