Abstract
The research about trees vegetation diversity in PT Arun NGL area had been done in December 2012. The objective of the research was to calculate the trees vegetation diversity index. The data had been collected in nine belt transects by length 400 m and 400 m2 (10 m x 40 m) plots for each belt transect. The collecting data was including name of species, family, density, frequency and dominancy. The data was analyzed to get important value and diversity index. The result showed that there were 39 tree species belongs to 23 families found in the research area. There were three dominant species namely; Pterocarpus indicus, Pithecelobium dulce, dan Leucaena leucocephala which had higher important value than others species that lead influencing the ecosystem. The trees diversity index in this area was about 3,3 which interpreted this area has high diversity index. Moreover, the plants were planted in PT Arun NGL Housing Area have another function as reducing pollutant material in the air.
Highlights
The research about trees vegetation diversity in PT Arun NGL area had been done in December 2012
The data had been collected in nine belt transects by length 400 m
39 tree species belongs to 23 families found in the research area
Summary
Dalam kawasan kompleks perumahan PT Arun NGL yang luasnya 438 ha dapat ditemui berbagai macam jenis tumbuhan yang berperawakan (habitus) herba, tiang, pancang dan pohon. Penanaman pohon di lokasi ini sudah dilakukan sejak perumahan ini dihuni oleh karyawan yaitu sekitar tahun 1980. Tujuan penanaman pohon dilakukan tidak hanya untuk keteduhan dan kesejukan tetapi juga untuk menghadirkan tumbuhan khas masing-masing daerah sesuai dengan asal penghuni rumah tersebut. Selain itu penanaman ini dilakukan untuk menghadirkan suasana kampung halaman dari masing-masing penghuni rumah tersebut. Pihak manajemen perumahan meyakini tumbuhan ini selain dapat mendatangkan keteduhan juga dapat mengendalikan pencemaran yang berasan dari berbagai perusahan raksasa yang berada di kawasan industri di Lhohseumawe (Diskusi pribadi dengan Manajemen Perumahan PT Arun NGL). Pada kesempatan ini dilakukan penelitian untuk mengetahui Diversitas (keanakaragaman) jenis pepohonan di kompleks perumahan PT Arun NGL
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