PERUBAHAN TUTUPAN LAHAN MANGROVE DAN GARIS PANTAI MENGGUNAKAN CITRA MULTI SPEKTRAL DI TALIBURA, KABUPATEN SIKKA

Abstract

Mangrove land degradation causes changes in the coastline. The coastal area of ​​Talibura District (Sikka Regency) is one of the areas that has a mangrove ecosystem. The existence of residents in this area causes interaction with the mangrove ecosystem resulting in degradation of the mangrove ecosystem. In the coastal area of ​​Talibura District there was no research had been done regarding changes in the mangrove land cover and coastlines for 30 years. This study aims to determine changes in mangrove land cover and coastlines from 1990-2019 in Talibura District. Mangrove land cover was obtained using the Supervised Classification method and change in the coastline was determined using the DSAS method by calculating the statistic rate of change in coastlines from Landsat image data recorded in 1990, 2004, and 2019. The results showed that there was mangrove degradation of 60.84 ha during the 1990-2004 period and mangrove expansion of 2.43 ha; it implied coastline abrasions in the degradation area with the highest value of -487.54 m and accretions with the highest value of 307.45 m in areas where the mangrove ecosystem has been maintained.