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All Journal Jurnal Fisika FLUX
Widya Edma Putri
Department of Physics, Universitas Lambung Mangkurat
Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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Spatial Dynamics of Mangrove Forests in Kuala Lupak Nature Reserve: A Google Earth Engine-Based Analysis using NDVI and MVI Widya Edma Putri; Nurlina Nurlina; Sri Cahyo Wahyono; ichsan Ridwan
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 23, No 1 (2026): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v23i1.24770

Abstract

This study aims to analyze the dynamics of mangrove cover in the Kuala Lupak Nature Reserve, South Kalimantan, using multitemporal Landsat imagery and Random Forest classification on Google Earth Engine. Two vegetation indices, Normalized Difference Vegetation Index (NDVI) and Mangrove Vegetation Index (MVI), were applied to improve mangrove discrimination across observation years (1990, 2000, 2010, and 2020). The results indicate that MVI tends to provide more stable classification performance compared to NDVI, with overall accuracy values generally exceeding 0,90. The analysis of mangrove change shows a decreasing trend over the 30-year period, with a total loss of 1,857.15 ha and a gain of 318.15 ha, resulting in a net loss of approximately 1,539 ha. However, these results are derived from classified satellite data and may be influenced by classification uncertainty, sensor differences, and environmental variability. Therefore, the findings should be interpreted as indicative trends rather than exact measurements. This study highlights the potential of integrating remote sensing and machine learning approaches for long-term monitoring of mangrove ecosystems and provides useful information to support mangrove conservation and management strategies.
Co-Authors ichsan Ridwan Nurlina Nurlina Sri Cahyo Wahyono