Putu Perdana Kusuma Wiguna
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana, Jl. P.B. Sudirman Denpasar 80362 Bali

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Journal : E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)

Analisis Faktor Prioritas Daerah Resapan Air di Kota Denpasar Provinsi Bali NI PUTU UTARI HANDAYANI; NI MADE TRIGUNASIH; PUTU PERDANA KUSUMA WIGUNA; I WAYAN SEDANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Analysis Priority Factor of Water Catchment Area in Denpasar City Bali Province Denpasar City as the capital city and one of the tourism centers in Bali Province is experiencing an increasing need for residential land use, because Denpasar City has a fairly large population. This causes a reduction in the water catchment area, so that most of the water becomes runoff. Determination of water catchment areas in all areas using the same factors, namely, soil type, rainfall, slope, and land use. However, each factor will be influenced by environmental conditions which cause each factor to have a different priority value. Therefore, it is necessary to study the priority factors of water catchment areas in Denpasar City. This research was conducted from September to December 2021. The purpose of this study was to determine the determinants of water catchment areas in Denpasar City and the priority value of each factor. This study utilizes spatial technology, namely Geographic Information Systems (GIS) which uses the Spatial Multi Criteria Evaluation (SMCE) to determine the weight and priority value of the determinants of water catchment areas. This research produces an output in the form of a map of each of the determinants of water catchment areas. The results showed that the soil type factor became the first priority, the rainfall factor became the second priority, the land use factor became the third priority, and the slope factor became the last priority.
Analisis Spasial Faktor Prioritas Daerah Rawan Banjir di Kota Denpasar Provinsi Bali DEWA AYU CHYNTIA ANGELINA; NI MADE TRIGUNASIH; PUTU PERDANA KUSUMA WIGUNA; I WAYAN SEDANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Analysis Priority Factors of Flood Prone Areas in Denpasar City Bali Province Floods are caused by the low infiltration capacity of the soil and the overflow of surface water (runoff) due to the long duration of rain and the high intensity of rainfall so that it cannot accommodate the accumulation of rainwater. Denpasar City is one of the cities in Bali Province where floods often cause losses in terms of material and physical environment. The determinants of flood susceptibility use the same factors, namely rainfall, soil type, land use, slope, and elevation but are influenced by environmental conditions so that the priority value of each factor is different. Therefore, there is a need for a research of the priority factors of flood-prone areas in Denpasar City. The purpose of the research was to determine the determinants of flood vulnerability and priority factors for flood prone areas in Denpasar City using Spatial Multi Criteria Evaluation. This research was carried out in Denpasar City from August to December 2021. The method used was Spatial Multi Criteria Evaluation for weighting and determining priority values ??for determining flood susceptibility through Geographic Information System applications. This research produces an output in the form of a map of each of the determinants of flood vulnerability in Denpasar City. The results showed that the rainfall factor was the first priority, the land use factor was the second priority, the soil type factor was the third priority, the slope factor was the fourth priority, and the altitude factor was the last priority.