Struktur dan Komposisi Pohon Serta Karbon Tersimpan Di Deleng Macik Kawasan TAHURA Bukit Barisan Kabupaten Karo Sumatera Utara

STRUKTUR DAN KOMPOSISI POHON SERTA KARBON TERSIMPAN
DI DELENG MACIK KAWASAN TAHURA BUKIT BARISAN
KABUPATEN KARO SUMATERA UTARA
ABSTRAK
Penelitian struktur dan komposisi pohon serta karbon tersimpan di Deleng Macik
Kawasan Tahura Bukit Barisan Sumatera Utara telah dilaksanakan pada bulan
Mei sampai Oktober 2016. Lokasi penelitian ditentukan menggunakan metode
purposive sampling dengan membentuk plot berukuran 10x10 m sebanyak 100
plot mengikuti garis transek sepanjang 1000 m secara zigzag. Komposisi pohon
terdiri dari 70 jenis pohon dari 23 famili. Luas Bidang Dasar tertinggi diperoleh
pada famili Lauraceae dengan nilai 7,54 m2. Stratifikasi pohon kelompok B dan C
ditemukan pada semua plot dan jumlah pohon terbanyak termasuk dalam stratum
C yaitu 417 individu. Nilai INP tertinggi didapatkan pada jenis Anthocephalus
cadamba sebesar 27,86% sedangkan yang terendah pada jenis Cyptocarya ferrea
sebesar 0,56%. Nilai indeks keaneakaragaman dan kemerataan sebesar 3,91 dan
0,92. Jumlah karbon tersimpan yang diperoleh pada lokasi penelitian sebesar
21,04 ton/1ha.
Kata Kunci: Hutan Deleng Macik, Karbon Tersimpan, Pohon, Struktur dan
Komposisi Pohon.

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Universitas Sumatera Utara

COMPOSITION AND STRUCTURE OF TREE AND CARBON STOCKS
IN DELENG MACIK BUKIT BARISAN GRAND FOREST PARK
ECOSYSTEM KARO DISTRICT NORTH SUMATERA
ABSTRACT
Research on the composition and structure of tree vegetation and carbon stored in
Deleng Macik Bukit Barisan Grand Forest Park areas Karo district of North
Sumatera Province had been done on May till October 2016. This research aims to
determine the composition and structure as well as the potential of carbon stored
in the forest of Deleng Macik. The research location is determined by purposive
sampling method based on 1 km transect line which contains 100 plots area, each
plot has a size about 10x10 m and were placed in zigzag pattern. Observations
were made using squares method. From the results were found that the tree
composition consists of 70 species from 23 families. The highest value on the
horizontal structure is from Lauraceae family with a value of 7,54m2, while the
most abundance vertical structure in startum C with 417 individuals. The highest
Importance Value Index found on Anthocephalus cadamba around 27,86% and
the lowest on the type of Cryptocarya ferrea around 0,56%. The diversity index
as well as uniformity index in the location around 3,91 and 0,92. The carbon

stored in the location is 21,04 tons C/ha.
Keywords: Composition and Structure of Tree, Bukit Barisan Grand Park Forest,
Carbon Stored.

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Universitas Sumatera Utara