Mangrove cover change between 2003 and 2023 on the east coast of South Sumatera Province, Indonesia
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Abstract
Abstract. Koesdaryanto NS, Wijayanti M, Simanjuntak MPD, Fathoni MFM, Wiraatmaja MF, Setyawan AD. 2024. Mangrove cover change between 2003 and 2023 on the east coast of South Sumatera Province, Indonesia. Pros Sem Nas Masy Biodiv Indon 10: 54-60. Mangrove forests are one of the ecosystems that function to protect coastal areas from various disturbances. Mangroves also have social, economic, and cultural functions for coastal communities. Mangroves on South Sumatra, Indonesia's east coast, provide various environmental services for humans and animals. Therefore, efforts are needed to monitor the extent of mangroves to ensure their sustainability. Satellite imagery, such as Landsat, has been commonly used to monitor mangrove extent. This study aims to temporarily determine changes in mangrove land area between 2003 and 2023. Changes in mangrove land area were analyzed based on Landsat 7, 8, and 9 satellite image data. The satellite images were classified by supervised classification using the maximum likelihood method in three land classes mangroves, ponds, and water bodies. The results of mangrove cover analysis on the east coast of South Sumatra found that the area of mangroves in 2003, 2013, and 2023 reached 115,072, 118,674, and 97,332 ha. The mangrove area increased by 3,601.47 ha (+3.13%) in 2003-2013 and decreased by 21,342 ha (-17.98%) in 2013-2023. The community's economic needs cause a decrease in the mangrove areas, which are converted into ponds. Mangrove conservation and rehabilitation must continue to be carried out to maintain its environmental benefits.