Analisis Pengaruh Kerusakan Hutan Mangrove terhadap Perubahan Garis Pantai dan Upaya Pengendaliannya di Desa Pintu Air Kecamatan Pangkalan Susu

Abstract

Mangrove forests are tropical forests that grow along coastlines and river estuaries. One of the functions of mangroves is to bind sediment and prevent seawater intrusion. Shifting coastlines due to reduced mangrove density is one of the negative impacts that can harm environmental conditions. This research was conducted to determine whether or not there is an influence between mangrove forest damage and changes in the coastline in the coastal area of Pintu Air Village and to determine what efforts can be made to prevent this damage. Data was sourced from Citra Sentinel 2A and digitized using the Interactive Supervised Classification method in GIS to analyze the area of mangrove forest cover. Then the technique used to analyze coastline changes is NDWI (Normalized Detection Water Index). the shift will be analyzed using DSAS. The results of this research are a reduction in the area of mangrove forests in 2019-2023 by 5.25 ha or an average of 1.31 ha/year, and the coastline in 2019-2023 has experienced abrasion of 12.51 m with an average -an average of 3.13 m/year. The area of mangrove forest plantations and changes in coastlines that occurred in 2019-2023 have a directly proportional relationship, so it can be concluded that mangrove damage influences changes in coastlines that occur in Pintu Air Village, Pangkalan Susu District. Several recommended efforts to address and prevent this issue include implementing the regulations established by the government through the participation of all community elements, restoring or rehabilitating mangrove forests, and constructing hybrid engineering structures along coastal areas.