STRUKTUR DAN KOMPOSISI TEGAKAN SERTA MODEL PENDUGAAN POTENSI VOLUME TEGAKAN DI UNIT MANAJEMEN HUTAN RAKYAT LESTARI CITRAGALUH, KABUPATEN SUBANG, JAWA BARAT

• Main Author: Medhavi, Wilhelmus
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/61499
• Institution: Institut Teknologi Bandung

Community forests generally have individual scale management per family head, thus affecting the diversity of forest stands. This study aims to explore the structural characteristics of the stand composition on the land and to develop a model for estimating the potential stand volume on the Citragaluh Sustainable Community Forest Management Unit (UMHRL) land located in Subang Regency, West Java. Field data retrieval was carried out as many as 55 plots based on the combination class of land slope mapping with vegetation density from mapping NDVI values. The data taken includes the level of slope; type of plant; crop coordinates; planting pattern and spacing; tree diameter, tree height, and canopy density. The results of plot observations showed that the cropping pattern of UMHRL Citragaluh consisted of monoculture (10.9%), mixed stands (20%), agroforestry (29%), fields (27.27%), rice fields (9%), bamboo stands (1 .8%) and built-up area (1.8%). The spacing applied is quite tight with a size of 2x2 meters and 3x3 meters. The types of forest trees planted are Peacocksplume, Mahogany, Teak, Largeleaf Rosemallow, Umbrella Tree, Wattles, and Needlewood Tree. The size of the tree diameter ranges from 11-15 cm and an average height of 11 m. Stratum C was found in all types of cropping patterns, while stratum D and E were only found in agroforestry and field patterns. Based on the results of stratification, diameter distribution, and stand volume, mixed gardens were the best cropping pattern. This research also proves the role of community forest as a transition between plantation forest and natural forest based on the stand form and composition. The stand volume potential estimator model chosen was linear with the equation Y = 0.074X1 + 2.924 X2 - 1.679 with X1 = slope and X2 = NDVI. The values of R2, Adjusted R2, RMSE, models are 51.3%, 39.1%, and 0.644, respectively. The average potential for the Citragaluh UMHRL is 119,835 m3/ha, which tends to be higher than other community forest studies.