The assessment of sedimentation problems in Kenyir Hydropower Reservoir, Malaysia

Abd Wahab, Noorjima and Kamarudin, Mohd Khairul Amri and Toriman, Mohd Ekhwan and Juahir, Hafizan and Abu Samah, Mohd Armi and Azinuddin, Muaz and Mohd Saudi, Ahmad Shakir and Loh, Ing Hoe and Md Saad, Muhammad Hafiz and Sunardi, Sunardi (2023) The assessment of sedimentation problems in Kenyir Hydropower Reservoir, Malaysia. Water, 15 (13). pp. 1-32. ISSN 2073-4441 E-ISSN 2073-4441

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Abstract

Lakes may take a while to respond to management interventions because of the management implications of incremental development and degradation issues. This includes the requirement for the ongoing participation of key lake basin management institutions and their operations. This study’s objective is to assess the impacts of land use activities along the Kenyir Lake Basin based on the sedimentation problem level. There are a few hydrological methods that are necessary indicators to measure the level of sediment production, such as Total Suspended Solid (TSS), area of sub-catchment, river discharge measurement, and annual sediment load production. The results showed that the sub-catchment of Besar River released the lowest annual average estimation at 3833.70 kg/km2/year, and the sub-catchment of Kenyir River produced the highest annual average estimation at 128,070.86 kg/km2/year for annual sediment load flow produced from tributary rivers into Kenyir Lake. Kenyir Lake Basin’s downstream and midstream regions had higher sediment load values than its upstream regions. This study highlighted the significance of the effects of anthropogenic factors, hydrological, geomorphological, growth, and developmental factors, and climate changes as the key variables attributing to the sedimentation phenomenon along the Kenyir Lake Basin. The construction of a long-term lake or reservoir catchment development and management plan, combined with the formation of a vision and comprehensive strategic plan, are vital components of sound management practice. The efficient implementation of the suggested watershed management programmes depends on the active involvement of all significant catchment stakeholders.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Sedimentation, Kenyir Hydropower Reservoir, Kenyir Lake Basin, Total Suspended Solid (TSS), Annual sediment load production
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Dr Mohd Armi Abu Samah
Date Deposited:	19 May 2026 11:10
Last Modified:	19 May 2026 11:10
Queue Number:	2026-05-Q3429
URI:	http://irep.iium.edu.my/id/eprint/129035

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