Sediment yield accumulation at reservoir (Bengoh Dam)

Melissa, Anak Diman (2010) Sediment yield accumulation at reservoir (Bengoh Dam). [Project Report] (Unpublished)

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Abstract

Sedimentation in water supply reservoirs is a widely recognized problem for water supply authorities, Reduction of reservoir capacity and water quality decline are two of the major concerns. The Modified Universal Soil Loss Equation (MUSLE) was selected for application in this research study to estimate sediment yield at Bengoh Dam, Sarawak. The catchment area is 127 km2 and the rainfall was analyzed for 10 years beyond, from 1994 until 2008. The runoff coefficient for this study area is 0.55. The soil erodibility factor, K was determined by referring to the research area soil map classification and Table of Soil Erodibility Classification. The slope length and steepness factor, LS was computed using the LS equation. Meanwhile, cover and management factor, CP is referring to the Table of Crop Management and Erosion Control Practice Factor. The obtained parameters in MUSLE are K value of 0.613, LS and CP values are 0.368 and 0.200 respectively. The secondary objective on estimating the sediment yield in Bengoh Dam study area using MUSLE also achieved. The maximum and minimum values of sediment yield are 379,588.79 ton per year and 200,586.11 ton per year. Relationship between rainfall and sediment yield obtained was y = 84.114x – 3313.8 and R2 = 0.9982. This research is very important to illustrate the condition of the sediment yield at the study area and showed that sedimentation problem is a serious matter that should have an attention from responsible authority. It also can be used to arise the importance of applying soil conservation practice to minimize the erosion damage.

Item Type: Project Report
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2010.
Uncontrolled Keywords: Sediment transport,Sediment transport--Measurement,Unimas, university,universiti, Borneo, Malaysia, Sarawak,Kuching, Samarahan,ipta,education, postgraduated ,research ,Universiti Malaysia Sarawak
Subjects: Q Science > QC Physics
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Karen Kornalius
Date Deposited: 22 May 2015 08:16
Last Modified: 22 May 2015 08:16
URI: http://ir.unimas.my/id/eprint/7799

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