FOREST HEALTH MONITORING (FHM) DI TAMAN HUTAN RAYA RADEN SOERJO MALANG

Raden Soerjo Grand Forest Park (TAHURA) is one of the conservation areas in East Java that faces pressure due to human activities and natural factors. This study aims to assess forest health in the Brakseng Block using the Forest Health Monitoring (FHM) method with a focus on tree vitality and site quality. Data collection was carried out through observations of tree damage (location, type, and severity), Visual Crown Ratio (VCR) measurements, and soil pH analysis. The results showed that forest health was generally good with an average low Cluster Level Index (CLI) value (0.8–2.3). Tree damage was mostly found on the crown trunk (code 6) caused by mistletoe (Liana) with a severity level of <50%. Soil conditions have a pH of 5.8–6.8 (acidic) and are dominated by fertile humus soil. The main threats to forest health come from mistletoe attacks and human activities around the area. Recommendations for sustainable management include routine monitoring, rehabilitation by increasing Pasang plants (Querchus sundaicus). Pasang plants have a conservation role, including their root system in preventing soil erosion, especially on mountain slopes or areas with high rain fall