Analysis of the impact of mangrove forest land use on coastline changes using Landsat 8 satellite imagery on the coast of Ogan Komering Ilir Regency, South Sumatra province
DOI:
https://doi.org/10.60923/issn.2281-4485/22124Keywords:
Mangrove, land use, shoreline change, NDVI, Landsat 8, Ogan Komering IlirAbstract
Ogan Komering Ilir Regency (OKIR) has extensive mangrove forests that play a vital role in protecting the coast from abrasion. However, over the past decade, this area has experienced degradation due to land conversion and climate change. This study aims to analyze the impact of changes in mangrove land use on shoreline changes in four key coastal sub-districts: Air Sugihan, Tulung Selapan, Cengal, and Sungai Menang, from 2014 to 2024. The method used is spatial analysis using Landsat 8 satellite imagery and the NDVI index. The results show a decrease in mangrove area from 76,409.64 ha to 66,968.75 ha, which has caused significant coastal abrasion, especially in Tulung Selapan and Air Sugihan. In contrast, Cengal has shown recovery due to rehabilitation programs. The combination of anthropogenic pressures and climate change is the main factor in the degradation. This study recommends conservation-based coastal management and the use of spatial data to support sustainable policies.
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