The mangrove forest in the Teluk Kupang Marine Nature Tourism Park (TWAL), West Oesapa Village, is a coastal ecosystem exposed to considerable pressure from surrounding community activities, making a health status assessment essential for sustainable management. This study aims to assess the health status of the mangrove forest using the Forest Health Monitoring (FHM) method, covering three indicators: vitality (tree damage), productivity (basal area/LBDS), and biodiversity (species richness, diversity, and evenness). Observations were conducted across 17 cluster plots representing 17.58 ha of mangrove area. The results show that the vitality indicator for all clusters falls into the healthy category, with an average damage index of 0.0859. The productivity indicator shows varying basal area values among clusters, tending to increase with stand age. The biodiversity indicator shows that the Margalef richness index and Shannon-Wiener diversity index are low across all growth strata, while the Pielou evenness index is moderate. Overall, the health status of the TWAL Teluk Kupang mangrove forest is categorized as healthy in terms of vitality, although greater attention to species diversity is required to sustain its ecological function.
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