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Analisis Jenis-Jenis Morfologi Karst Daerah Pasarwajo Desa Dongkala Kabupaten Buton Muhamad Sugito; Ali Okto; Muliddin Muliddin; Hasria Hasria; Sawaludin Sawaludin
JAGAT (Jurnal Geografi Aplikasi dan Teknologi) Vol 6, No 2 (2022): JAGAT (Jurnal Geografi Aplikasi dan Teknologi)
Publisher : Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jagat.v6i2.28422

Abstract

Abstrak:Penelitian ini dilakukan di daerah Pasarwajo, Desa Dongkala, Kecamatan Pasarwajo, Kabupaten Buton, Provinsi Sulawesi Tenggara. Penelitian ini bertujuan untuk mengetahui jenis batuan, variasi morfologi dan geomorfologi karst pada daerah penelitian. Metode pengumpulan data pada penelitian ini, terbagi atas tiga yaitu melalui observasi dan pengukuran langsung di lapangan menggunakan analisis petrologi dan analisis morfografi, melalui pengamatan di laboratorium menggunakan analisis petrografi serta melalui interpretasi peta citra satelit atau peta topografi menggunakan analisis morfometri. Hasil penelitian menunjukan bahwa terdapat 2 satuan bentanglahan yaitu satuan bentanglahan kars dan satuan bentanglahan marine. Variasi morfologi karst pada daerah penelitian secara umum terbagi atas tiga yaitu morfologi eksokarst,morfologi endokarst dan morfologi mikro dengan geomorfologi karst tipe Gunung sewu.. Untuk satuan bentanglahan marin bentuklahan pesisir yang ada di daerah penelitian dibentuk oleh hasil erosi laut yang terdiri dari ciff, wave-cut platform, gua laut, notch dan stumb dengan jenis batuan packstone, wackstone dan endapan alluvial. Kata Kunci : Geomorfologi karst, Eksokasrt, Endokasrt, Mikrokarst Abstrak: This research was conducted in the Pasarwajo area,Dongkal village, Pasarwajo District, Buton Regency, Southeast Sulawesi Province. This research to determine the rock type, morphological variations and the karst geomorphology of the research area. Data collection methods in this research, divided into three, through direct observation and measurements in the field, using petrological analysis and morphographic analysis, through laboratory observations using petrographic analysis, and through the interpretation of the satellite image map or topographic maps using morphometric analysis. The result of the study showed that there were two fields, those were karst field and marine field.. In general, the variation of karst morphology in the research area is divided into three, the exokarst morphology,the endokarst morphology and the minor karst with the karst geomorphology of the Sewu mountain type. For marine field, the shoreline field which is located in the area of the study, was shaped by the effect of erosion of the sea consisted of cliff, wave-cut plataform, sea cave,notch adan stumb, the type of lithologi packstone, wackstone and alluvial deposit. Keywords: Karst Geomorphology, Exokarst, Endokarst, Mikrokasrt
ANALISIS PERUBAHAN GARIS PANTAI DI WILAYAH PESISIR KECAMATAN SOROPIA Rahmat Ucok; Sawaludin Sawaludin; Nurgiantoro Nurgiantoro
Sustainability: Theory, Practice and Policy Vol. 4 No. 1 (2024): Sustainability: Theory, Practice and Policy June Edition
Publisher : Pusat Kajian Berkelanjutan UIN Sulthan Thaha Saifuddin Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30631/sdgs.v4i1.2616

Abstract

The coastal environment is a dynamic area constantly undergoing changes due to various natural and anthropogenic factors. These changes can occur slowly or rapidly, influenced by elements such as wave action, tides, human activities, and climatic events. Monitoring these changes is essential for effective coastal management. This study aims to: (1) Analyze changes in coastlines in Soropia Sub-district between 2013 and 2022; and (2) Identify the factors influencing these changes. Landsat 8 imagery was used for this research, analyzed using the Overlay method to detect and quantify coastal changes over the nine-year period. The results indicate that four areas in Soropia Sub-district experienced significant coastline changes. The most substantial accretion occurred in Bajo Indah Village with a change of 130 meters, while the smallest accretion was observed in Toronipa Village with a change of 26 meters. Toronipa Village also experienced minor abrasion with a change of 0.3 meters. The factors influencing these changes include sediment accumulation, currents, wave height, and reclamation activities. This study provides valuable insights into coastal dynamics in Soropia Sub-district and highlights the importance of continuous monitoring and comprehensive analysis to inform future coastal management strategies.