of: trees with 20x20m compartment, for pole level with 10x10m, sapling, with 5x5 m
compartment measurement and seedling with 2x2 m compartment. Then there was identification in sort, amount, height, and diameter in each compartment.
Data found would be analyzed in systematic according to work procedure of plant observation in preserve area, calculated: frequency, relative frequency, rapidity, relative rapidity, domination, relative domination, and important value index.