34 Soraya research station is one of the research stations in the area of Leuser
Ecosystem. It is located administratively 20 km from Subulussalam Regency, Aceh Province, Indonesia. The topography in this area ranged
from 75
– 350 m above sea level ASL. The research area is lowland forest [4].
Our aim in this research was to inventorying number of Dipterocarpaceae species as well as counting the number individual of each species which
found in Soraya research station, Leuser ecosystem area.
2. Materials and Methods
The method applied in this research is using belt transect, on the purposive area, about 2 ha 10 of about 20 ha. The observation plot was measured
5 m x 50 m along the transect line. The total numbers of observation plots are 80 plots. The data was collected by observing the availability of
Dipterocarpaceae species on the observation plot. The observation covered species and individual number of species. Each plant species found was put
into herbarium collection for the identification purposes and data collection. The number of species per plot was used to quantify the vegetation analysis.
3. Results and Discussion
3.1. The species of Dipterocarpaceae in the Soraya Research Station The total number of Dipterocarpaceae of the total 80 observation plots 2
ha was 145 individuals, 11 species and 4 genera Table 1.
Table 1. The Dipterocarpaceae species and its number of species in Soraya Research Station
No Species
Number of species 1
Dipterocarpus baudii Korth
5 2
Dipterocarpus cornutus Dyer
2 3
Dipterocarpus grandiflorus Blanco
19 4
Dipterocarpus humeratus v.Slooten
3 5
Dipterocarpus rigidus Ridl
2 6
Hopea dryobalanoides Miq.
73 7
Parashorea lucida Miq. Kurz.
9 8
Shorea dasyphylla Foxw.
14 9
Shorea johorensis Foxw
4 10
Shorealepidota Korth. Blume
6 11
Shoreapalembanica Miq.
8 Total
145
The Dipterocarpaceae member found in the research area belonged to Dipterocarpoideae sub family, both members of Dipterocarpeae tribe
35 Dipterocarpus genus or Shoreae tribe Shorea, Parashorea and Hopea
genera. The result showed that the dominance individual number of species found in Soraya research station was Hopea dryobalanoides Miq, about 73
individual or 50,3 of individual all species Picture 1.
a b
Picture 1. Hopea dryobalanoides Miq a seedling and b leaves The local name of Hopea dryobalanoides Miq is Damar Mata Kucing.
Beside the wood quality, this species is also well known for its good quality of resin [1]. Dammar has many commercial applications, though many of
these uses are less important nowadays due to the advent of synthetic materials. The abandon of this species in Soraya research station indicated
that this species probably did not interested compared to the other member of Dipterocarpaceae.
Another species which was dominated the research area was Dipterocarpus grandriflorus
Blanco 13.1 . This species is known with the local name Keruing Belimbing. This species is a common medium hardwood tree in
South-East Asia and India [1]. Based on the IUCN List, this species is critically endangered [5]. Not like Hopea genus which height is about 40
m emergent tree, the genus of Dipterocarpus is known as upper canopy tree 50 m.
