KEANEKARAGAMAN JENIS POHON PENYUSUN VEGETASI HUTAN GUNUNG PERAMAS TAMAN NASIONAL GUNUNG PALUNG PROVINSI KALIMANTAN BARAT

. Suriyansyah, Gusti Hardiansyah, M Dirhamsyah

Abstract


Mount Peramas is part of the Gunung Palung National Park area located in Kayong Utara Regency. This area is included in a zone of utilization and a special zone. The research objective is to explore the diversity of tree species and forest vegetation in Mount Peramas. The benefits of this research is to provide data and information for the reference in the forest management area. Result showed that 120 species of trees found in Mount Peramas, which 117 tree species from 36 families are identified and 3 tree species still unidentified. The highest family of tree is Myrtaceae, Anacardiaceae, Myristicaceae, Dipterocarpaceae, Lauraceae, Meliaceae, Phyllanthaceae, Euphorbiaceae and Sapotaceae. There are 8 species of trees protected from IUCN, 2 species from CITES and 11 species from endemic Kalimantan. The largest important value index (INP) at the tree growth rate was found on Quercus argentata with value 15.974%. INP value at pole rate was found on Baccaurea tetrandra with value 20.477%. The dominance index (C) at the growth rate of trees and poles was 0.003 or C = 1, this indicates the concentration of species within a plant community is low. The species diversity index (H') at the growth rate of trees and poles was 1.5 - 1.8 or H' = 1 - 3, this indicates species diversity is moderate meanwhile. The species richness index (R) at the tree growth rate was R = 3.5 - 5.0 shows wealth of the species is moderate meanwhile. The pole growth rate was R = <3.5 which indicates the type of pole richness is low. The evenness index (E) of the tree growth rate is 0.9 or E = >0.6 and at the pole growth rate is 0.9 or E = >0.6, indicating the evenness of the type is high.

Keywords:  Dominance index (C), Gunung Palung National Park, Gunung Peramas, important value index (INP), trees diversity

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