UTILIZATION OF MODIFIED NDVIRED AND RED EDGE ALGORITHM FOR ANALYSIS OF MANGROVE ECOSYSTEM CONDITIONS IN LEMBAR BAY AREA OF WEST LOMBOK INDONESIASukuryadi, Nuddin Harahab, Mimit Primyastanto and Harry Irawan Johari
Efforts to collect data and information about the profile of coastal resources, especially mangrove ecosystems are very necessary. This can be done through inventory activities that aim to obtain a clear and real picture of the condition and potential of mangrove vegetation on an ongoing basis. Therefore, the purpose of this study is to utilize the modified NDVIred and red edgealgorithm to determine the condition of the mangrove ecosystem in the mangrove ecosystem area of Lembar Bay, West Lombok Regency. The research method used is a survey method approach with either direct or indirect surveys. The algorithm analysis of the vegetation index used in this study is NDVIred and red edge. The results showed that the mangrove ecosystem area in the Lembar bay area, West Lombok, was mostly categorized in good condition, which was about 45.27% of the total area of the mangrove ecosystem. Most of the mangrove ecosystem areas with dense conditions are areas that are far from settlements and fishponds, dominated by natural mangroves which are very rarely visited by both local communities and outside communities so that the utilization rate is relatively low.