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All Journal Journal of Degraded and Mining Lands Management Ilmu Manajemen Sosial Humaniora (JIMSH)
Santrio, Adam
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The impact of nickel mining on vegetation cover in a small island: a case study in Manuran Island, Raja Ampat, Indonesia Adidharma, Mohammad Afdhal; Mu’min Z, Nurul; Santrio, Adam; Idris, Andi Azwar Anas; Fatmi, Anggun Rahmi Diah; Awaluddin, Awaluddin; Pindasari, Nanang; Ermawati, Elly; Padyawan, Andhy Rahmat; Sirniawan, Sirniawan
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9211

Abstract

The exploitation of small islands (area less than 2000 km²) for mining activities can negatively impact vegetation conditions, as observed on Manuran Island in West Papua Province. This study aimed to assess the environmental impact of mining on Manuran Island by analyzing spatial and temporal changes in vegetation indices using the Normalized Difference Vegetation Index (NDVI) method to classify land cover using Landsat 7 ETM satellite imagery and Landsat 8 OLI imagery. The NDVI classification grouped four land cover types: non-vegetation, open soil, sparse vegetation, and moderate vegetation. The analysis revealed a significant increase in non-vegetation land cover from 2002 to 2015, indicating a direct impact from mining activities. However, between 2015 and 2025, the area classified as non-vegetation tended to decrease gradually. Conversely, open soil and sparse vegetation experienced a notable decline from 2002 to 2015, followed by a minor decrease in the subsequent period. In contrast, moderate vegetation steadily increased from 2002 to 2025, suggesting a recovery process in the vegetation. To accelerate the environmental and vegetation recovery process, several revegetation strategies, including reclamation, selection of native and pioneer species, and soil improvement techniques, are recommended. The findings of this study suggest that the reduction in mining activity intensity on Manuran Island has contributed positively to ecosystem recovery and that direct interventions are needed to accelerate environmental recovery.
Meningkatkan Keterlibatan Mahasiswa dan Kompetensi Bisnis Properti melalui Pembelajaran Berbasis Proyek di Perguruan Tinggi Awaluddin, Awaluddin; Azwar Anas Idris, Andi; Pindasari, Nanang; Ermawati, Elly; Kumalasari, Vita; Afdhal Adiharma, Mohammad; Santrio, Adam; Rahmi Diah Fatmi, Anggun; Mu’min Z., Nurul; Sirniawan, Sirniawan
Jurnal Ilmu Manajemen Sosial Humaniora (JIMSH) Vol. 8 No. 2 (2026): August, Jurnal Ilmu Manajemen Sosial Humaniora (JIMSH)
Publisher : LP3M, Universitas Muhammadiyah Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51454/jimsh.v8i2.1354

Abstract

This classroom action research examines the effectiveness of implementing Project-Based Learning (PjBL) to enhance student engagement and competencies in the Property Business course. The research subjects consisted of 28 sixth-semester students of the Entrepreneurship Study Program at ITBM Kolaka in the 2024/2025 academic year. The study was conducted in two cycles, each comprising planning, implementation, observation, and reflection stages. Research instruments included student engagement observation sheets, project report assessment rubrics, and learning process documentation. The results revealed a significant improvement in student engagement, with active participation increasing from 78% in the first cycle to 88% in the second cycle. Analysis of specific project components showed quality improvements in location analysis by 25.8%, cost estimation and Return on Investment (ROI) capabilities by 35.6%, and project report structure by 18.1%. These findings were reinforced by statistical analysis using paired sample t-test, indicating a significant increase in the average score from 3.22 to 4.03 (t(27) = 8.167, p < 0.001). The implementation of PjBL proved effective not only in enhancing conceptual understanding but also in developing analytical, financial, and professional communication skills essential in the property business world.
Co-Authors Adidharma, Mohammad Afdhal Afdhal Adiharma, Mohammad Azwar Anas Idris, Andi Ermawati, Elly Fatmi, Anggun Rahmi Diah Idris, Andi Azwar Anas Mu’min Z, Nurul Mu’min Z., Nurul Pindasari, Nanang Rahmat Padyawan, Andhy Rahmi Diah Fatmi, Anggun Sirniawan, Sirniawan Vita Kumalasari, Vita