Abstract
Vitality indicators are characterized by tree damage and canopy condition. This condition has an impact on the health of mangrove forests, including the Purworejo mangrove forest. The aim of this research is to obtain the value and health status of the Purworejo mangrove forest in Pasir Sakti District, East Lampung Regency, based on vitality indicators. In terms of collecting and analyzing vitality indicator data, the Forest Health Monitoring (FHM) method is used based on tree damage parameters and canopy cover conditions. Sample plot clusters were made into four clusters, or 16 plots, at four points with an area of 0.4 ha per cluster. The research results showed that the tree damage value at the cluster plot level (CLI) was 1.08–1.23. The cluster plot level canopy condition value (VCR) was 2.82–3.32. Thus, the average health value of the Purworejo mangrove forest is 1.88, with a medium status category (1.63-2.31). Mangrove forest management must be improved, especially in maintenance activities, to overcome pest problems that cause damage to mangrove trees.
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