Flood Hazard Mitigation at Tarusan Watershed, South Pesisir District, West Sumatera Province

Iswandi Umar, Triyatno


Floods are the most common natural disasters in Indonesia and have enormous potential. This study aims to determine the flood hazard zone and regional arrangement in the Tarusan Watershed, South Pesisir Regency. To determine the flood hazard zone using the GIS approach. The indicators used to determine flood hazard are slope, rainfall, soil type, landform, geology, and land use. Determine the direction of regional arrangement with an Interpretative Structural Modeling (ISM) approach. The results showed that the high flood hazard zone in the Tarusan watershed is about 22% of the total area, the medium index is around 58%, and the low flood hazard index is 20%. The high - hazard zone of flood disasters in the study area is caused by high rainfall and topographic conditions of the Tarusan Watershed. The main priority in the management of flood - hazard areas in the Tarusan Watershed is to find economic alternatives to reduce forest destruction. Increasing the economic value of the community can lead to reduced community activities in carrying out land conversion, especially in forest areas.


Akhter, M. S., & Hewa, G. A. (2016). The use of PCSWMM for assessing the impacts of land use changes on hydrological responses and performance of WSUD in managing the impacts at myponga catchment, south australia. Water Journal, 8(11), 511-522.
Asdak, C. 1995. Hidrologi dan Pengelolaan Daerah Aliran Sungai. Yogyakarta.
Gadjah Mada University Press.
Bashir, B. (2023). Morphometric Parameters and Geospatial Analysis for Flash Flood Susceptibility Assessment: A Case Study of Jeddah City along the Red Sea Coast, Saudi Arabia. Water Journal, 15(5), 870-882.
Chen, C., & Tfwala, S. S. (2018). Impacts of climate change and land subsidence on inundation risk. Water, 10(2), 157.
Chechina, M., Neveux, Y., Parkins, J., and Hamann, A. (2018). Balancing conservation and livelihoods: A study of forest-dependent communities in the philippines. Conservation and Society, 16(4), 420-430
Delabre, I., Boyd, E., Brockhaus, M., Carton, W., Krause, T., Newell, P., Zelli, F. (2020). Unearthing the myths of global sustainable forest governance. Global Sustainability, 3.(e16): 1-10
Eriyatno. (2003). Ilmu Sistem: Meningkatkan Mutu dan Efektifitas Manajemen. Bogor: IPB Press.
Ferrans, P., Reyes-Silva, J. D., Krebs, P., & Temprano, J. (2023). Flood Management with SUDS: A Simulation–Optimization Framework. Water Journal, 15(3), 426-444
Hidayat R A. (2020). Spatial Modeling of The Threat of Damage to The Peatland Ecosystem In The Mainland of Bengkalis Regency, Riau Province. Journal Social Polites. 20 (2) ; 196-211.
Hoch, J. M., Eilander, D., Ikeuchi, H., Baart, F., & Winsemius, H. C. (2019). Evaluating the impact of model complexity on flood wave propagation and inundation extent with a hydrologic–hydrodynamic model coupling framework. Natural Hazards and Earth System Sciences, 19(8), 1723-1735.
Kodoatie, Robert J; Suharyanto; Sangkawati, Sri; dan Edhisono, Sutarto. (2002). Pengelolaan Sumber Daya Air dalam Otonomi Daerah. Yogyakarta: CV Andi.
Namdar, A., & Pelko, M. K. (2009). Numerical analysis of soil bearing capacity by changing soil characteristics. Frattura Ed Integritá Strutturale, (10), 38-42.
Nkwunonwo, U. C., Whitworth, M., & Baily, B. (2016). Review article: A review and critical analysis of the efforts towards urban flood risk management in the lagos region of nigeria. Natural Hazards and Earth System Sciences, 16(2), 349-369.
Marimin. 2005. Teknik dan Aplikasi : Pengambilan Keputusan Kriteria Majemuk. PT. Grasindo, Jakarta
Rosyidie, A. (2013). Banjir: fakta dan dampaknya, serta pengaruh dari perubahan guna lahan. Journal of Regional and City Planning, 24(3), 241-249.
Suripin. (2014). Sistem Drainase Yang Berkelanjutan. Edisi Pertama Yogyakarta : Andi
Sutrisno AJ, Kaswanto, Arifin HS, (2019). Analisis Prediksi dan Hubungan antar Debit Air dan Curah Hujan pada Sungai Ciliwung di Kota Bogor. Journal of Natural Resources and Environmental Management, 10(1): 25-33
Umar, I., Widiatmaka., Pramudya, B., dan Barus, B., (2017). Prioritas Pengembangan Kawasan Permukiman Pada Wilayah Bahaya Banjir Di Kota Padang, Provinsi Sumatera Barat. Majalah Ilmiah Globe, 19(1), 83-94.
Umar, I., Dewata, I., dan Barlian, E. (2019). Konsistensi Rencana Tata Ruang Permukiman Dan Arahan Kebijakan Pembangunan di Kabupaten Tanah Datar, Provinsi Sumatera Barat. Journal of Natural Resources and Environmental Management, 9(2), 277-286.
Umar, I., Dewata, I., Barlian, E., Hermon, D., and Suasti, Y. (2018). Priority Selection of Residential Development Areas with Flood Hazard in Limapuluh Kota District, West Sumatra. International Journal of GEOMATE, 15(52), 152-158.
Usman, S. (2016). Surface soil factors and soil characteristics in geo-physical milieu of kebbi state nigeria. Eurasian Journal of Soil Science, 5(3), 209-220.
Wagenaar, D. J., de Bruijn, ,K.M., Bouwer, L. M., & de Moel, H. (2016). Uncertainty in flood damage estimates and its potential effect on investment decisions. Natural Hazards and Earth System Sciences, 16(1), 1-14.
Wicander, S., and Coad, L. (2018). Can the provision of alternative livelihoods reduce the impact of wild meat hunting in West and Central Africa. Conservation and Society, 16(4), 441-458.


Iswandi Umar
iswandi_u@yahoo.com (Primary Contact)
UmarI. and Triyatno (2024) “Flood Hazard Mitigation at Tarusan Watershed, South Pesisir District, West Sumatera Province”, Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management). Bogor, ID, 14(1), pp. 101-108. doi: 10.29244/jpsl.14.1.101-108.

Article Details