STUDY OF COASTLINE CHANGE FOR RECOMMENDATIONS MANGROVE CONSERVATION AREAS ON THE COAST OF PANGANDARAN REGENCY

• Main Author: Tia Mulyati, Neng
• Format: Final Project
• Language: Indonesia
• Subjects: Geologi, hidrologi & meteorologi
• Online Access: https://digilib.itb.ac.id/gdl/view/74801
• Institution: Institut Teknologi Bandung

The coastal area of Pangandaran Regency facing the Indian Ocean is the coastal area with the greatest threat of abrasion and accretion. Environmental degradation of coastal ecosystems needs to be minimized with a coastal management system that has the basic concept of environmentally sustainable development. This study examines shoreline changes for recommendations for mangrove conservation areas on the coast of Pangandaran Regency. In this study Landsat 7 satellite imagery was used to identify the coastline and Sentinel-2 satellite imagery for coastal vegetation using the Normalized Difference Vegetation Index (NDVI) method. Shoreline changes were analyzed using the Digital Shoreline Analysis System (DSAS) which used the Net Shoreline Movement (NSM) statistical method, while the End Point Rate (EPR) was used to identify abrasion and accretion. The results show that the rate of change of coastline on the coast of Pangandaran Regency has an average accretion with a value of +2.43 m/year and abrasion with a value of -3.03 m/year, a positive value indicates an increase in area towards the sea and a negative value indicates a reduction landward area. In 2011-2021, the highest abrasion occurred in the villages of Sukaresik, Batukaras and Babakan, with maximum coastal erosion rates of -40.51 m/year, -37.83 m/year and -34.11 m/year respectively year. The recommendation zone for mangrove conservation areas is centered on Batukaras Village and Sukaresik Village, the core zone is 77.64 hectares, the utilization zone is 63.86 hectares, and the rehabilitation zone is 40.17 hectares.