Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion

Estimation of sediment transport capacity (STC) plays a crucial role in simulating soil erosion using any physics-based models. In this research, we aim to investigate the pros and cons of six popular STC methods (namely, Shear velocity, Kilinc-Richardson (KR), Effective stream power, Slope and unit...

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Autores principales:	Linh Nguyen Van, Xuan-Hien Le, Giang V. Nguyen, Minho Yeon, Sungho Jung, Giha Lee
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sediment transport capacity rainfall-runoff erosion deposition GSSHA Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/011e14d84e0b41c58a84c165bd7314f1
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spelling	oai:doaj.org-article:011e14d84e0b41c58a84c165bd7314f12021-11-11T19:55:52ZInvestigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion10.3390/w132130542073-4441https://doaj.org/article/011e14d84e0b41c58a84c165bd7314f12021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3054https://doaj.org/toc/2073-4441Estimation of sediment transport capacity (STC) plays a crucial role in simulating soil erosion using any physics-based models. In this research, we aim to investigate the pros and cons of six popular STC methods (namely, Shear velocity, Kilinc-Richardson (KR), Effective stream power, Slope and unit discharge, Englund-Hansen (EH), and Unit stream power) for soil erosion/deposition simulation at watershed scales. An in-depth analysis was performed using the selected STC methods integrated into the Grid Surface Subsurface Hydrologic Analysis model for investigating the changes in morphology at spatial-temporal scales at the Cheoncheon watershed, South Korea, over three storm events. Conclusions were drawn as follows. (1) Due to the ability of the KR and EH methods to include an additional parameter (i.e., erodibility coefficient), they outperformed others by producing more accurate simulation results of sediment concentration predictions. The KR method also proved to be superior to the EH method when it showed a more suitable for sediment concentration simulations with a wide range of sediment size and forcing magnitude. (2) We further selected 2 STC methods among the 6 methods to deeply explore the spatial distribution of erosion/deposition. The overall results were more agreeable. For instance, the phenomenon of erosion mainly occurred upstream of watersheds with steep slopes and unbalanced initial sediment concentrations, whereas deposition typically appeared at locations with flat terrain (or along the mainstream). The EH method demonstrated the influence of topography (e.g., gradient slope) on accretionary erosion/deposition results more significantly than the KR method. The obtained results contribute a new understanding of rainfall-sediment-runoff processes and provide fundamental plans for soil conservation in watersheds.Linh Nguyen VanXuan-Hien LeGiang V. NguyenMinho YeonSungho JungGiha LeeMDPI AGarticlesediment transport capacityrainfall-runofferosiondepositionGSSHAHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3054, p 3054 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sediment transport capacity rainfall-runoff erosion deposition GSSHA Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	sediment transport capacity rainfall-runoff erosion deposition GSSHA Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Linh Nguyen Van Xuan-Hien Le Giang V. Nguyen Minho Yeon Sungho Jung Giha Lee Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
description	Estimation of sediment transport capacity (STC) plays a crucial role in simulating soil erosion using any physics-based models. In this research, we aim to investigate the pros and cons of six popular STC methods (namely, Shear velocity, Kilinc-Richardson (KR), Effective stream power, Slope and unit discharge, Englund-Hansen (EH), and Unit stream power) for soil erosion/deposition simulation at watershed scales. An in-depth analysis was performed using the selected STC methods integrated into the Grid Surface Subsurface Hydrologic Analysis model for investigating the changes in morphology at spatial-temporal scales at the Cheoncheon watershed, South Korea, over three storm events. Conclusions were drawn as follows. (1) Due to the ability of the KR and EH methods to include an additional parameter (i.e., erodibility coefficient), they outperformed others by producing more accurate simulation results of sediment concentration predictions. The KR method also proved to be superior to the EH method when it showed a more suitable for sediment concentration simulations with a wide range of sediment size and forcing magnitude. (2) We further selected 2 STC methods among the 6 methods to deeply explore the spatial distribution of erosion/deposition. The overall results were more agreeable. For instance, the phenomenon of erosion mainly occurred upstream of watersheds with steep slopes and unbalanced initial sediment concentrations, whereas deposition typically appeared at locations with flat terrain (or along the mainstream). The EH method demonstrated the influence of topography (e.g., gradient slope) on accretionary erosion/deposition results more significantly than the KR method. The obtained results contribute a new understanding of rainfall-sediment-runoff processes and provide fundamental plans for soil conservation in watersheds.
format	article
author	Linh Nguyen Van Xuan-Hien Le Giang V. Nguyen Minho Yeon Sungho Jung Giha Lee
author_facet	Linh Nguyen Van Xuan-Hien Le Giang V. Nguyen Minho Yeon Sungho Jung Giha Lee
author_sort	Linh Nguyen Van
title	Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
title_short	Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
title_full	Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
title_fullStr	Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
title_full_unstemmed	Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion
title_sort	investigating behavior of six methods for sediment transport capacity estimation of spatial-temporal soil erosion
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/011e14d84e0b41c58a84c165bd7314f1
work_keys_str_mv	AT linhnguyenvan investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion AT xuanhienle investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion AT giangvnguyen investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion AT minhoyeon investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion AT sunghojung investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion AT gihalee investigatingbehaviorofsixmethodsforsedimenttransportcapacityestimationofspatialtemporalsoilerosion
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Investigating Behavior of Six Methods for Sediment Transport Capacity Estimation of Spatial-Temporal Soil Erosion

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