Sedimentation Analysis Based on Land Use Change on Service Life Estimation in the Gerokgak Reservoir Buleleng Regency
DOI:
https://doi.org/10.32832/astonjadro.v14i3.18186Keywords:
erosion; sedimentation; method; USLE, reservoir service life.Abstract
A common problem faced by most reservoirs during their operational period is sedimentation. Sedimentation problems occur due to high levels of land erosion which is influenced by land use in the reservoir catchment area. Based on this, the aim of this research is to determine changes in land use in the reservoir catchment area, the amount of erosion and sedimentation caused by land use and the influence of erosion on the estimated service life of the reservoir. The research location is in the water catchment area of the Gerokgak Reservoir, Buleleng Regency, Bali Province. The data needed in this research includes land use maps and topography of the reservoir catchment area, planning data for the Gerokgak Dam and soil types. The methods used in this research are the Universal Soil Loss Equation (USLE) method to predict the amount of land erosion and the Sediment Delivery Ratio to determine the percentage of sediment entering the reservoir as well as the dead storage comparison method with the amount of sediment to determine the estimated service life of the reservoir. Based on the land use map, the land use condition of the Gerokgak Reservoir water catchment area in 2023 is 95.5% forest and 4.5% rice fields. The average rate of land erosion from 2018 to 2023 is 27.427 tons/ha/year with potential sedimentation of 9,698.563 tons/year. Based on the amount of sediment, it can be analyzed that the service life of the Gerokgak Reservoir is around 5.279 years.
References
Purwanto, B. P. (2018). Spesial study Bendungan Palasari, Benel, Gerokgak, dan Telaga Tunjung di Provinsi Bali. Denpasar: Kementerian Pekerjaan Umum dan Perumahan Rakyat.
Saily, R., & Jusi, U. (2021). Identifikasi laju erosi dan laju sedimentasi pada Waduk Wonosari Kabupaten Bengkalis. 18(1).
Environmental Systems Research Institute (ESRI). (2024). Esri Sentinel-2 Land Cover Explorer. Retrieved May 26, 2024, from https://livingatlas.arcgis.com/landcoverexplorer/
Aisyah, B., Baskoro, D., & Murtilaksono, K. (2022). Pendugaan erosi tanah dan perencanaan tutupan lahan hulu DAS Jeneberang, Sulawesi Selatan. Jurnal Ilmu Pertanian Indonesia, 27(2), 302–310.
Kementerian Pekerjaan Umum dan Perumahan Rakyat. (2015). Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat Nomor 27/PRT/M/2015.
Kementerian Pekerjaan Umum Dan Perumahan Rakyat. (2022). Keputusan Menteri Pekerjaan Umum dan Perumahan Rakyat Nomor 1332/KPTS/M/2022 tentang pembentukan unit pengelola bendungan dan pengangkatan kepala unit pengelola bendungan di Direktorat Jenderal Sumber Daya Air.
Kementerian Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia. (2020). Peraturan Menteri PUPR Nomor 16/PRT/M/2020 tentang organisasi dan tata kerja unit pelaksana teknis di Kementerian Pekerjaan Umum dan Perumahan Rakyat.
Badan Penelitian Pengembangan dan Inovasi Kabupaten Buleleng. (2022). Kondisi geologi Kabupaten Buleleng. Retrieved May 26, 2024, from https://balitbang.bulelengkab.go.id/informasi/detail/artikel/44-kondisi-geologi-kabupaten-buleleng
Banuwa, I. S. (2013). Erosi. Jakarta: Prenadamedia Group.
Marhendi, T. (2013). Strategi pengelolaan sedimentasi waduk (Management strategy to reservoir sedimentation). Techno, 14(2), 29–41.
Aisyah, B. N. (2022). Prediction of soil erosion and land use planning in the Upper Jeneberang Watershed, South Sulawesi Province. Jurnal Ilmu Pertanian Indonesia (JIPI, 27(2)).
Daniyan, I. A., Mpofu, K., & Ramatsetse, B. (2020). The use of analytical hierarchy process (AHP) decision model for materials and assembly method selection during railcar development. 7(1833433).
Badan Informasi Geospasial. (2024). DEM Nasional. Retrieved October 20, 2024, from https://www.big.go.id/content/profil/sejarah
Badan Pusat Statistik Kabupaten Buleleng. (2023). Kecamatan Gerogak dalam angka 2023. Indonesia.
Wischmeier, W., & Smith, D. (1978). Predicting rainfall erosion losses: A guide to conservation planning. Washington, DC: USDA.
Arsyad, S. (2010). Konservasi tanah dan air. Bogor: IPB Press.
Akhsani, M. (2018). Pengambilan keputusan operation and maintenance (O&M) PLTU batu bara menggunakan pemodelan keandalan dan sistem dinamik. [Thesis, Institut Teknologi Sepuluh November].
Ardhana, I. P. G. (2011). The technique of agroforestry at the communal forest areas in Pejarakan Village, District Gerokgak, Regency of Buleleng, Province Bali. Jurnal Ilmu Pertanian Indonesia.
Arifandi, F., Ikhsan, C., & St, M. T. (2019). Pengaruh sedimen terhadap umur layanan pada tampungan mati (dead storage) Waduk Krisak di Wonogiri dengan metode USLE (Universal Soil Loss Equation). Matriks Teknik Sipil.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 ASTONJADRO
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Paper submitted to ASTONJADRO is the sole property of the Astonjadro Journal. Unless the author withdraws the paper because he does not want to be published in this journal. The publication rights are in the journal Astonjadro.ASTONJADRO
LICENSE
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://ejournal.uika-bogor.ac.id/index.php/ASTONJADRO
