Analysis of Density and Changes in Mangrove Vegetation on Cup Island, Tangerang Regency, Banten Province, Based on GIS

Abstract

This research is based on the role of multifunctional mangrove ecosystems. Mangrove ecosystems play an important role for the sustainability of marine and terrestrial life and also for human socio-economic needs. This research was also conducted due to the lack of analysis and information related to the density of mangrove ecosystems on Cup Island. The analysis in this study utilizes Geographic Information System (GIS) technology with NDVI (Normalized Difference Vegetation Indexi) vegetation index. The result of the analysis carried out is that there was a decrease in mangrove area on Cup Island from 2018-2021 by 14.94 ha and increased again in 2022 covering an area of 1.35 ha with a sparse density of 2.52 ha, a medium density of 2.7 ha and a dense area of 5.4 ha. This change occurs due to abrasion factors that occur continuously, fires to deforestation activities that cause reduction and damage to the distribution and density of mangroves on Cangkir Island, Kronjo District, Tangerang Regency, Banten.