PEMETAAN DAERAH RAWAN LONGSOR WILAYAH DAS TANGNGA DENGAN SISTEM INFORMASI GEOGRAFIS

Nasiah Nasiah; Hasriyanti Hasriyanti; Andi Irhamiah

doi:10.35580/jes.v5i1.22777

PEMETAAN DAERAH RAWAN LONGSOR WILAYAH DAS TANGNGA DENGAN SISTEM INFORMASI GEOGRAFIS

Nasiah Nasiah⁽¹⁾, Hasriyanti Hasriyanti⁽²⁾, Andi Irhamiah^(3*),

(1) Universitas Negeri Makassar
(2) Universitas Negeri Makassar
(3) Universitas Negeri Makassar
(*) Corresponding Author

DOI: https://doi.org/10.35580/jes.v5i1.22777

Abstract

ABSTRACT

Currently, the number of damaged watersheds has not improved, as evidenced by the increasing incidence of natural disasters such as landslides, floods and droughts. Much work has been done to restore the watershed, but no significant results have been achieved. This type of research is quantitative descriptive using geographic information system (GIS) software analysis program, in the form of overlay analysis, factors that affect rock types, rainfall, slope, soil movement susceptibility, soil texture, and land use. Based on the estimation results of landslide susceptibility in the Tangnga watershed, three levels of landslide susceptibility were obtained, namely: non-prone with an area of 4,562 ha (55%) with distribution in Uluere, Bantaeng, Sinoa, Eremarasa, and Bissapu districts downstream of the Tangnga watershed. The level of vulnerability with an area of 3,246 Ha (39%) has a distribution in Uluere, Bantaeng, Bissapu, and Eremarasa Districts. And the level of vulnerability is very vulnerable with an area of 449 Ha (6%) having a distribution in the upstream Tagnga watershed, namely Uluere, Bantaeng, Eremarasa, and Sinoa Districts.

Keywords

Landslide, Watershed, Geographic Information System

Full Text:

PDF

References

DAFTAR RUJUKAN

Arsyad, S. 2018. Konservasi Tanah dan Air. Bogor: IPB Press.

Badan Nasional Penanggulangan Bencana. 2016. Risiko Bencana Indonesia (RBI). Jakarta. BNPB.

Balai Pengelolaan DAS Jeneberang-Walanae, 2010. Statistik Pembangunan Balai Pengelolaan Daerah Aliran sungai Jeneberang Walanae. 2010, BPDAS Jeneberang-Walanae. Makassar.

Harto, M.F.D., Rachman, A., Rida, L.P., Aisyah.M., Purnama, W.H., Abigail N., & Nur, F.R., Utama, W. 2017. Pemetaan Daerah Rawan Longsor Dengan Menggunakan Sistem Informasi Geografis Studi Kasus Kabupaten Bondowoso. Jurnal Geosaintek. Vol 03 No. 3. 161-166

Harjadi dan Paimin. 2013. Teknik Identifikasi Daerah yang Berpotensi Rawan Longsor pada Satuan Wilayah Daerah Aliran Sungai. Jurnal Penelitian Hutan dan Konservasi Alam. Vol. 10 No. 2, Agustus 2013 : 163 – 174.

Pattiselanno, S.R.R., Anwar, M.R., & Hasyim, A.W. 2014. Penanganan Kawasan Bencana Longsor DAS Wai Ruhu. Jurnal Rekayasa Sipil. Vl. 8 No. 1. 17-29

Ramli, Muhammad. 2018. Zonasi Rawan Longsor di Kecamatan Tompobulu Kabupaten Bantaeng. Skripsi. Makassar. Universitas Negeri Makassar.

Rosaliana, R., Bahar, H., & Yuwanto, S.H. 2020. Kajian Bahaya, Risiko, dan Mitigasi Bencana Gerakan Tanah di Daerah Sendang Rejo dan Sekitarnya, Kecamatan sambeng, Kabupaten Lamongan, Provinsi jawa Timur. Prosiding, Seminar Teknologi Kebumian dan Kelautan (Semitan II).

Susanti, Pranatasari Dyah. Arina Miardini, Arina dan Harjadi Beny. 2017. Analisis Kerentanan Tanah Longsor Sebagai Dasar Mitigasi di Kabupaten Banjarnegara. Journal of Watershed Management Research. Vol. 1 No. 1: 4.