Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia

Sediment accumulation is a major factor in reducing a reservoir's useful life. As a result, information on any changes in storage capacity is required to reduce the reservoir's risk. Therefore, the goal of this study was to determine the amount of sediment entering the reservoir using the...

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Main Authors: Lake Endalew, Arega Mulu
Format: Article
Language:English
Published: Elsevier 2023-04-01
Series:Environmental Challenges
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2667010023000197
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author Lake Endalew
Arega Mulu
author_facet Lake Endalew
Arega Mulu
author_sort Lake Endalew
collection DOAJ
description Sediment accumulation is a major factor in reducing a reservoir's useful life. As a result, information on any changes in storage capacity is required to reduce the reservoir's risk. Therefore, the goal of this study was to determine the amount of sediment entering the reservoir using the Modified Universal Soil Loss Equation (MUSLE). The sediment entering into the reservoir was calculated by the MUSLE model over the last six years and is estimated after determining the physical parameters (K, LS, C, and P factors) and runoff index (VQ and QP) from the watershed using ArcGIS 10.8 and Excel software. The single event sediment (daily sediment) using MUSLE was a product of physical parameters (K, LS, C, and P factors) and runoff index (VQ and QP). The Modified Universal Soil Loss Equation estimated 256,262.86 tons of sediment yield at the outlet of the watershed (inflow to the reservoir in the last six years). The reservoir's total capacity has been reduced by 5.4 percent over the last six years of operation. The average rate of sedimentation was estimated at 42,710.48 tons/year or 31.64 tons/ha/year. Hence; the annual capacity reduction of the reservoir was 0.9 percent.
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spelling doaj.art-8c36c4fd2c7842b6af4e85599c1bd50c2023-05-14T04:30:03ZengElsevierEnvironmental Challenges2667-01002023-04-0111100696Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, EthiopiaLake Endalew0Arega Mulu1East Gojjam zone Irrigation and lowland Development Department, EthiopiaDepartment of Hydraulic and water resources Engineering, Technology Institute, DebreMarkos University, Ethiopia; Corresponding author.Sediment accumulation is a major factor in reducing a reservoir's useful life. As a result, information on any changes in storage capacity is required to reduce the reservoir's risk. Therefore, the goal of this study was to determine the amount of sediment entering the reservoir using the Modified Universal Soil Loss Equation (MUSLE). The sediment entering into the reservoir was calculated by the MUSLE model over the last six years and is estimated after determining the physical parameters (K, LS, C, and P factors) and runoff index (VQ and QP) from the watershed using ArcGIS 10.8 and Excel software. The single event sediment (daily sediment) using MUSLE was a product of physical parameters (K, LS, C, and P factors) and runoff index (VQ and QP). The Modified Universal Soil Loss Equation estimated 256,262.86 tons of sediment yield at the outlet of the watershed (inflow to the reservoir in the last six years). The reservoir's total capacity has been reduced by 5.4 percent over the last six years of operation. The average rate of sedimentation was estimated at 42,710.48 tons/year or 31.64 tons/ha/year. Hence; the annual capacity reduction of the reservoir was 0.9 percent.http://www.sciencedirect.com/science/article/pii/S2667010023000197MUSLEReservoir sedimentationShumburit reservoir
spellingShingle Lake Endalew
Arega Mulu
Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
Environmental Challenges
MUSLE
Reservoir sedimentation
Shumburit reservoir
title Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
title_full Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
title_fullStr Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
title_full_unstemmed Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
title_short Estimation of the amount of sediment entering into Shumburit reservoir from the Shumburit watershed, East Gojjam zone, Amhara Region, Ethiopia
title_sort estimation of the amount of sediment entering into shumburit reservoir from the shumburit watershed east gojjam zone amhara region ethiopia
topic MUSLE
Reservoir sedimentation
Shumburit reservoir
url http://www.sciencedirect.com/science/article/pii/S2667010023000197
work_keys_str_mv AT lakeendalew estimationoftheamountofsedimententeringintoshumburitreservoirfromtheshumburitwatershedeastgojjamzoneamhararegionethiopia
AT aregamulu estimationoftheamountofsedimententeringintoshumburitreservoirfromtheshumburitwatershedeastgojjamzoneamhararegionethiopia