DOI: https://doi.org/10.14710/teknik.v46i2.67929

Evaluation of Soil Water Assessment Tool (SWAT) Model Accuracy in Estimating Erosion and Sedimentation Rates in the Sutami Reservoir Watershed

*Hendri Wijaya  -  Department of Civil Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia
Dyah Ari Wulandari  -  Department of Civil Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia
Suripin Suripin  -  Department of Civil Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia
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Abstract

The storage capacity of the reservoir is affected by poor management of the Watershed (DTA), which in turn influences erosion and sedimentation levels. In 1972, the erosion rate at Sutami Reservoir was 0,18 mm/year, rising to 1.44 mm/year by 2022. This data reflects a significant increase in the erosion rate within the Sutami Reservoir watershed, highlighting the need for effective watershed management modeling. The Soil and Water Assessment Tool (SWAT) is commonly used for watershed management assessment. This study aims to predict erosion and sedimentation rates using SWAT and evaluate the accuracy of its simulations through calibration and validation. The simulation results from SWAT show that the total erosion rate is 5,280.45 tons/ha/year, with a total sedimentation of 11,662,851.94 tons/year. Additionally, These results were compared with an analysis using the USLE method, which indicated an erosion rate of 5,178.98 tons/ha/year and sedimentation of 11,060,798.14 tons/year. The comparison of both methods showed similar outcomes, suggesting that the SWAT model provides reasonably accurate predictions. The calibration process, using observed discharge data from 2022 and SWAT-simulated discharge, yielded an NSE value of 0.778, classified as 'very good.' On the other hand, validation using discharge data from 2023 and SWAT-simulated discharge yielded an NSE value of 0.660, classified as "good." Based on these results, the SWAT simulation offers a reliable representation of calibration and validation, making it an appropriate model for this study.

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Keywords: Erosion; Sedimentation; SWAT (Soil and Water Assessment Tool); Watershed; Reservoir

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Language : EN
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  1. Arnold, J. G., & Fohrer, N. (2005). SWAT2000: current capabilities and research opportunities in applied watershed modelling. Hydrological Processes: An International Journal, 19(3), 563–572
  2. Asdak, C. (2023). Hidrologi dan pengelolaan daerah aliran sungai. UGM PRESS
  3. Christanto, N., Setiawan, M. A., Nurkholis, A., Istiqomah, S., Sartohadi, J., & Hadi, M. P. (2018). Analisis laju sedimen DAS Serayu Hulu dengan menggunakan model SWAT. Majalah Geografi Indonesia, 32(1), 50
  4. Daruati, D., & Arief, A. (2017). Integrasi Spasial Daya Serap Tanah Dan Lahan Kritis Untuk Penentuan Lokasi Prioritas Perbaikan DAS. Limnotek: Perairan Darat Tropis Di Indonesia, 24(1)
  5. Fitriyana, E. N. (2019). ANALISIS BANGUNAN PENGENDALI SEDIMEN AKIBAT EROSI DAN SEDIMEN PADA DAS CIPUNAGARA MENGGUNAKAN MODEL SWAT. Bandung
  6. Ines, G., Jalel, A., Manel, M., & Sihem, B. (2024). rological modelling using SWAT in a Complex Semi-Arid Watershed. GSC Advanced Research and Reviews, Doi: 10.30574/Gscarr.2024.21.2.0427
  7. Irsyad, F., & Ekaputra, E. G. (2015). Analisis wilayah konservasi daerah aliran sungai (DAS) Kuranji dengan aplikasi SWAT. Jurnal Teknologi Pertanian Andalas, 19(1), 39–45
  8. Marhendi, T. (2018). Analisa perubahan volume sedimentasi waduk Pangsar Soedirman menggunakan karakteristik curah hujan berbasis Universal Soil Loss Equation (USLE). Jurnal Pengairan Undip
  9. Perusahaan Umum Jasa Tirta I. (2023). Laporan Akhir Kajian Kapasitas Tampungan Waduk Dalam Rangka Pengelolaan Sedimentasi di Wilayah Sungai Brantas. Malang
  10. Riki, R., Ali, N., & Mona, A. W. (2017). Integrasi Model SWAT dan SIG dalam Upaya Menekan Laju Erosi DAD Deli, Sumatera Utara. Retrieved from https://jurnal.ugm.ac.id/mgi
  11. Saputri, U. S., Saputra, M. A., Iskandar, I., Susanto, D. A., & Amdani, S. A. (2022). Aplikasi arc-swat pada analisis debit banjir rencana di daerah aliran sungai Cimandiri kabupaten Sukabumi. Jurnal Teslink: Teknik Sipil Dan Lingkungan, 4(2), 107–123
  12. Soma, A. S. (2024). Soil and Water Assessment Tool (SWAT) dalam Pengelolaan Daerah Aliran Sungai. Penerbit NEM
  13. Sujarwo, M. W., Indarto, I., & Mandala, M. (2020). Pemodelan Erosi dan Sedimentasi di DAS Bajulmati: Aplikasi Soil dan Water Assesment Tool (SWAT). Jurnal Ilmu Lingkungan, 18(2), 218–227
  14. Suroso, S., Anwar, M. R., & Rahmanto, M. C. (2007). Studi pengaruh sedimentasi kali Brantas terhadap kapasitas dan usia rencana waduk Sutami Malang. Rekayasa Sipil, 1(1), 33–42
  15. Vinay, D., Syed, A., Shilpa, K., & Shubham, S. (2024). 2. Comprehensive Review on SWAT for Sustainable Agriculture and Climatic Solutions. Journal of Scientific Research and Reports, Doi: 10.9734/Jsrr/2024/V30i112604

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