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All Journal Indonesian Journal of Geography Journal of Degraded and Mining Lands Management Jurnal Agroekoteknologi Journal of Regional and Rural Development Planning AGROLOGIA : Jurnal Ilmu Budidaya Tanaman JURNAL BUDIDAYA PERTANIAN Science Nature Jurnal Tunas Agraria International Journal of Multidisciplinary: Applied Business and Education Research MAKILA: Jurnal Penelitian Kehutanan GEOFORUM Jurnal Geografi dan Pendidikan Geografi Jurnal Pendidikan Geografi Unpatti JENDELA PENGETAHUAN Jurnal Pengabdian kepada Masyarakat Arumbai Jurnal Pengabdian kepada Masyarakat Arumbai AGROLOGIA: Jurnal Budidaya Tanaman
Osok, Rafael M
Fakultas Pertanian Universitas Pattimura Ambon
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Medicine & Pharmacology Physics Social Sciences Transportation Other

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Strategi Penataan Ruang Terbuka Hijau Daerah Rawan longsor Kelurahan Batu Gadjah Kota Ambon Ledy Resicha Parera; Ferad Puturuhu; Rafael Marthinus Osok
GEOFORUM 2026: Volume 5 Nomor 1
Publisher : Program Studi Pendidikan Geografi FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/geoforumvol5iss1pp1-10

Abstract

Kelurahan Batu Gadjah merupakan salah satu wilayah rawan tanah longsor di Kota Ambon. Meskipun RTRW Kota Ambon Tahun 2011–2031 telah mengatur pengembangan Ruang Terbuka Hijau (RTH), belum terdapat alokasi khusus RTH untuk kawasan rawan longsor. Penelitian ini bertujuan mengidentifikasi potensi RTH dan merumuskan strategi penataannya sebagai upaya mitigasi bencana longsor. Metode yang digunakan meliputi analisis spasial berbasis Sistem Informasi Geografis (SIG), analisis tutupan lahan, serta analisis TOWS yang didukung data sekunder dan wawancara. Hasil penelitian menunjukkan bahwa strategi utama meliputi penguatan vegetasi konservasi, pemberdayaan masyarakat, perlindungan kawasan konservasi, kolaborasi pemangku kepentingan, dan optimalisasi pendanaan untuk mendukung mitigasi longsor berbasis RTH
Pengaruh Keberadaan Perusahaan Kerang Mutiara CV. RDR Terhadap Sosial Ekonomi Masyarakat di Desa Sathean Kabupaten Maluku Tenggara Maria T P Melwair; Rafael Marthinus Osok; Mohammad Amin Lasaiba,
Jurnal Pendidikan Geografi Unpatti Vol 5 No 1 (2026)
Publisher : Program Studi Pendidikan Geografi FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jpguvol5iss1pp16–29

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh keberadaan perusahaan kerang mutiara CV. RDR terhadap kondisi sosial ekonomi masyarakat di Desa Sathean, Kabupaten Maluku Tenggara. Penelitian menggunakan metode deskriptif kuantitatif dengan pendekatan geografi sosial ekonomi. Data dikumpulkan melalui observasi, wawancara, dokumentasi, dan penyebaran kuesioner kepada 30 responden yang dipilih secara purposive sampling. Hasil penelitian menunjukkan bahwa keberadaan perusahaan memberikan dampak positif terhadap kehidupan masyarakat, terutama dalam peningkatan kesempatan kerja, pendapatan rumah tangga, keterampilan kerja, serta stabilitas ekonomi. Pada aspek sosial, perusahaan berkontribusi terhadap peningkatan interaksi sosial, kerja sama masyarakat, dan perubahan pola mata pencaharian dari sektor perikanan tradisional menuju sektor industri budidaya mutiara. Selain itu, keberadaan perusahaan turut mendukung peningkatan kesejahteraan masyarakat melalui pemenuhan kebutuhan hidup dan pendidikan keluarga. Meskipun demikian, masih terdapat kendala berupa keterbatasan kesempatan kerja dan belum meratanya manfaat ekonomi yang diterima seluruh masyarakat.
Study of Landslide Susceptibility on Geotechnic and Soil Hydrological Characteristics Marchel Maxy Rijoly; Pieter Jozef Kunu; Rafael Martinus Osok
Jurnal Agroekoteknologi Vol 18, No 1 (2026)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v18i1.41622

Abstract

This study aims to analyze the physical, geotechnical, hydrological, and mineralogical properties of soil, as well as the presence of slip surfaces and their influence on the landslide potential of "dusung" land resulting from rock mining activities on the slopes of hills within the Wai Sikula watershed, Ambon Island. The research was conducted at rock mining sites in the Wai Sikula watershed, Negeri Hatu, Leihitu Barat District, Central Maluku Regency, from February to April 2026. The methods employed in this study include field surveys and observations at landslide points, along with laboratory analysis of soil samples. The results indicate that the soil characteristics influencing "dusung" land landslides due to rock mining include high bulk density (1.73 g/cm³), high particle density (2.57 g/cm³), high soil porosity (63.62%), rapid infiltration rate, low plastic limit (37.98%), low internal friction angle (17°), low shear strength indicating high landslide vulnerability (0.018 kg/cm²), and low cohesion (-0.005 kg/cm²), all of which increase the risk of landslides. The study area is composed of volcanic breccia and tuffaceous sandstone with steep slope conditions. Weak geotechnical and hydrological soil characteristics contribute significantly to the occurrence of "dusung" land landslides in the rock mining areas of the Wai Sikula watershed, Ambon Island. Keywords: Agroforestry, geotechnical, hydrological, landslides, physical properties
Evaluasi Kinerja dan Strategi Pengelolaan Berkelanjutan DAS Wai Heru di Kota Ambon Asia A. Sahubawa; Ferad Puturuhu; Johan Riry; Rafael M. Osok; Silwanus Talakua
MAKILA Vol 20 No 2 (2026): Makila: Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v20i2.26711

Abstract

The Wai Heru Watershed in Ambon City is experiencing increasing environmental pressures that require an integrated assessment of watershed performance and management priorities. This study assessed the performance and carrying capacity of the Wai Heru Watershed and formulated sustainable management strategies to support evidence-based watershed management. The study was conducted in Waiheru Village, Ambon City, Indonesia, covering approximately 764.68 ha. Watershed performance was evaluated using the monitoring and evaluation indicators prescribed in Regulation of the Minister of Forestry of the Republic of Indonesia No. P.61/Menhut-II/2014, encompassing land condition, hydrological condition, socioeconomic aspects, water infrastructure investment, and spatial utilization. The resulting performance score was subsequently integrated with a SWOT analysis to identify internal strengths and weaknesses and external opportunities and threats and to determine strategic management priorities. The results showed that the Wai Heru Watershed obtained an overall performance score of 113.25, classifying its watershed carrying-capacity performance as poor and indicating the need for prioritized management intervention. The SWOT analysis positioned watershed management in Quadrant III, corresponding to a WO or turn-around strategy in which external opportunities are mobilized to address dominant internal weaknesses. Priority interventions include rehabilitation of degraded and critical land, enhancement of permanent vegetation cover, strengthening of soil and water conservation measures, improved land-use control and institutional coordination, and increased participation of farmer groups and local communities. These findings provide an integrated scientific and policy-relevant basis for improving watershed resilience and advancing sustainable management of urban watersheds in small-island environments.
Sebaran Hujan Ekstrem dan Penerapan Prediksi IBFWS dalam Menilai Risiko Longsor di Kawasan Jazirah Leihitu Pulau Ambon Gina P. Batubara; Rafael M. Osok; Maimuna La Habi; Talakua, S.M
GEOFORUM 2026: Volume 5 Nomor 1
Publisher : Program Studi Pendidikan Geografi FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/geoforumvol5iss1pp26-39

Abstract

Landslides are a common hydrometeorological disaster in the Jazirah Leihitu region of Ambon Island, influenced by topographical conditions, rainfall intensity, and the area's vulnerability level. This study aims to analyze landslide risk levels, assess rainfall distribution patterns during landslide events, and evaluate the accuracy of the Impact-Based Forecast and Warning Services (IBFWS) system in predicting potential landslide impacts. The research methodology involves spatial mapping of hazard, vulnerability, and capacity, followed by spatial overlay with 24-hour rainfall data to produce IBFWS maps. Validation was conducted using a contingency table method. Results indicate that the majority of the area falls into the medium-risk category, while high-risk zones are scattered across western and central Leihitu Barat and the coastal region of Salahutu. IBFWS validation showed moderate accuracy for the July 8, 2022 event, with 66.67% accuracy and a skill score of 0.6667, but lower performance on August 24, 2022, with 33.33% accuracy and a skill score of 0.333. This study highlights the importance of strengthening impact-based early warning systems to enhance disaster mitigation and preparedness efforts in vulnerable areas.
Co-Authors A. Marthin Kalay A.M. Kalay Abraham Talahaturuson, Abraham Alfredo Manusama Asia A. Sahubawa Calvin T Tutuarima Daniel Hutajulu Daniel Torimtubun Dhanang Supriadi Dhanang Supriadi Elizabeth Kaya Ellisa J Gaspersz Ellisa J Gaspersz Ferad Puturuhu Ferad Puturuhu Ferdinand Salomo Leuwol Gina P. Batubara Hatulely, Gresi Haumahu, J P Hendrico F Hehakaya Hetti May Rini Pintu Batu Ivan Frits Johan Riry Labery, Cornelia M LaUo, Novanti Ledy Resicha Parera Luhukay , Marcus Mahulette, Angriany Maimuna La Habi Marasabessy, Syamsudin Marchel Maxy Rijoly Maria T P Melwair Mohammad Amin Lasaiba Niko Kareth Pieter J Kunu Pieter Jozef Kunu Reginawanti Hindersah Riry, Robert Berthy Risamasu, Robby G Roberth Berthy Riry Sandhy H Luhulima Sangadji , Abdul R Siahaya, Willem A. Siahaya, Willem Anthony Sihasale, Daniel Anthoni Silwanus M Talakua Silwanus M Talakua Silwanus M Talakua Silwanus M Talakua Silwanus M Talakua Silwanus M. Talakua Silwanus M. Talakua Silwanus Talakua Silwanus Talakua Siregar, Adelina Sisilia Wariunsora Slamet, Sonya Soplanit, Rudy Souhuwat, Jelika Olivia Talakua , Silwanus M Talakua, Cristina M Talakua, S.M Talakua, Silwanus Talakua, Silwanus Matheus Tehupeiory, Sjane Florence Tupanno, Carla E Willem A Siahaya Willem A Siahaya Willem Anthon Siahaya