Damage of Teak Trees (Tectona grandis Linnaeus filius) in the Production Forest Area of RPH Sukorame, KPH Mojokerto, East Java, Indonesia

Abstract

Kerusakan tegakan dapat mengakibatkan penurunan kualitas pada tegakan. Penelitian ini bertujuan untuk menganalisis tingkat kesehatan tegakan jati dan produktivitas serta kualitas tapak pada kawasan hutan produksi jati di RPH Sukorame BKPH Bluluk. Metode yang digunakan dalam penelitian adalah metode forest health monitoring (FHM) untuk memperoleh data tingkat kerusakan, produktivitas dan kualitas tapak pada kawasan tersebut. Berdasarkan hasil penelitian diketahui bahwa tegakan jati termasuk kategori sehat dengan nilai CLI 4,36 – 4,51. Produktivitas kawasan dengan tinggi bebas cabang 0-5 m dan diameter 16-20 cm dengan jenis tanah grumusol dan grumussol berpasir. pH tanah di sebagian wilayah netral dengan pH tanah 7 dan sebagian lagi sedikit masam dengan pH tanah 6,9 dan 5,8. Keywords: Jati. Kesehatan Tegakan, Produktivitas, Kualitas TapakThe health of the teak tree can be affected by damage caused by pests and environmental factors. This study aims to determine the health of the teak tree in teak production forest areas at RPH Sukorame KPH Mojokerto, East Java, Indonesia. The method used was the forest health monitoring (FHM) method. The sample was chosen by using a cluster plot system with a total sample of 216 teak trees. Parameters observed were symptoms of damage and its causes, type of damage and damaged parts of the teak tree, height and diameter, tread quality, and tree health analysis. The results showed that the health level of the teak tree in the teak production forest area of RPH Sukorame, KPH Mojokerto, East Java, was included in the health category with a Cluster plot level index (CLI) value of 4.36 - 4.51. The damage to the stand was caused by the attack of armyworm (Hyblaea puera), termites (Schedorhinotermes sp), and other factors. The productivity level of the area could have been more optimal, with a branch-free stand height of 0-5 m and a diameter of 16-20 cm: grumusol and grumusol sandy soil with a pH ranging from 5.8 to 7.0. Forest management is needed so that the teak tree can achieve optimum productivity.