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A Geoinformatics Approach to Water ErosionModeling the Erosion Process

A Geoinformatics Approach to Water Erosion: Modeling the Erosion Process [This chapter reviews physically based and empirical soil lossSoil loss and depositionDeposition models, and their applications to quantifying water erosion processesErosion processes. This review includes the equations and flowcharts of the CAESAR-LisfloodCAESAR-Lisfloodsoil evolution modelSoil Evolution Model (SEM), the physically based WEPPWater Erosion Prediction Project (WEPP) model, and the Morgan–Morgan–FinneyMorgan–Morgan–Finney (MMF) empirically based model. The principles of these models illustrate that topographyTopography (in particular, contributing areaContributing area and hillslope gradientHillslope gradient) is crucial to determine overland flowOverland flow and water erosion processesErosion processes, across all models. RainfallRainfall depth (especially rainfallRainfall intensity) is found to be key to simulate soil detachmentDetachment. Soil erosivity is expressed by textureTexture and hydraulic conductivity. The models also highlight the importance of the effect of land useLand use (especially cultivationCultivation method) on soil erosivity and consequent erosionErosion, and the effect of crop cover, canopy interception, and even root layer, on the water erosion processErosion processes. Finally, this chapter underlines the importance of spatial and temporal components in simulating the dynamics of the processes involved, for accurate model predictions.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A Geoinformatics Approach to Water ErosionModeling the Erosion Process

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References (45)

Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2022
ISBN
978-3-030-91535-3
Pages
75 –106
DOI
10.1007/978-3-030-91536-0_3
Publisher site
See Chapter on Publisher Site

Abstract

[This chapter reviews physically based and empirical soil lossSoil loss and depositionDeposition models, and their applications to quantifying water erosion processesErosion processes. This review includes the equations and flowcharts of the CAESAR-LisfloodCAESAR-Lisfloodsoil evolution modelSoil Evolution Model (SEM), the physically based WEPPWater Erosion Prediction Project (WEPP) model, and the Morgan–Morgan–FinneyMorgan–Morgan–Finney (MMF) empirically based model. The principles of these models illustrate that topographyTopography (in particular, contributing areaContributing area and hillslope gradientHillslope gradient) is crucial to determine overland flowOverland flow and water erosion processesErosion processes, across all models. RainfallRainfall depth (especially rainfallRainfall intensity) is found to be key to simulate soil detachmentDetachment. Soil erosivity is expressed by textureTexture and hydraulic conductivity. The models also highlight the importance of the effect of land useLand use (especially cultivationCultivation method) on soil erosivity and consequent erosionErosion, and the effect of crop cover, canopy interception, and even root layer, on the water erosion processErosion processes. Finally, this chapter underlines the importance of spatial and temporal components in simulating the dynamics of the processes involved, for accurate model predictions.]

Published: Feb 17, 2022

Keywords: CAESAR-Lisflood; Empirical modeling; MMF; Physically based modeling; Water erosion factors; WEPP

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