Pemantauan Perubahan Hutan Mangrove Menggunakan Data Satelit Multi Temporal di Pantai Sejarah Kabupaten Batubara Sumatera Utara

Abstract

Pantai Sejarah is a failed fishpond and former quartz sand mine, but through the hard work of the local community, this area has been rehabilitated into a popular educational tourist spot. This study was conducted with the aim of detecting changes in the area of mangrove forests in History Beach, Batubara that occurred in the period 2000 - 2024 using remote sensing technology. This study uses Landsat satellite imagery analysis with a classification technique based on the Random Forest algorithm on the Google Earth Engine platform. The results of this study show that the area of mangroves has decreased and increased from year to year. The area of mangrove land in 2000 was 798.66 hectares, and decreased in 2010, namely the area of mangroves was 362.23 hectares, most of which was converted to oil palm land. However, at the same time, there were reforestation efforts by local residents at the research location. In the following year, namely 2020, there was an increase in the area of mangroves to 483.87 hectares, most of which was the conversion of land from rice fields to mangroves. In the following year, namely 2024, there was also an increase in the area of mangroves by 514.75 hectares, most of which was the conversion of land from oil palm to mangroves.This reflects awareness and efforts in maintaining coastal ecosystems that are important for the environment and biodiversity. This study is expected so that the mangrove rehabilitation program will continue and be expanded to other potential areas. Protection of existing mangrove areas also needs to be strengthened so that they are not damaged due to land conversion or human activities.