Studi Populasi dan Distribusi Palahlar (Dipterocarpus hasseltii Blume) di Resort Gunung Salak I, Taman Nasional Gunung Halimun Salak

Abstract

Gunung Halimun Salak National Park (GHSNP) is a conservation area that a habitat for rare and protected flora and fauna. Palahlar (Dipterocarpus hasseltii Blume) is a rare plant species found in the GHSNP area with an endangered species and had declining population trend. This study aimed to analyze habitat conditions, population and distribution patterns of D. hasseltii at Gunung Salak I Resort of GHSNP. Data were collected by purposive sampling method based on the presence of D.  hasseltii. Vegetation analysis used the grid-lined method of 5 lanes measuring @ 100 m × 20 m, so that the total area of the observation plots was 1 ha. The observation plots were dominated by puspa (Schima wallichii), which had the highest Importance Value Index (IVI) at the seedlings (26,80%), saplings (24,04%), and trees (53,86%). The regeneration rate of D.  hasseltii, showed an abnormal condition, because the number of seedlings was less than the number of saplings. A total of 28 individuals of D. hasseltii were found at the observation plots consisted of 4 individual seedlings, 15 individual saplings, 3 individual poles, and 6 individual trees. The results showed that the distribution pattern of D. hasseltii was clustered.

Keywords: Dipterocarpus hasseltii, endangered species, Gunung Halimun Salak National Park, palahlar