Potensi Kayu Perkakas dan Kayu Bakar Jenis Jati (Tectona grandis) di Hutan Rakyat Desa Natah, Gunung Kidul
Abstract: The potential of
merchantable timber and firewod of teak (Tectona grandis) in Desa Natah
community forest was estimated by developing allometric equations method. To
establish the allometric equation 350 sample trees were measured to determine
the relationships between tree height (H) and diameter breast height (D).
Thirty trees of various sizes were cut to measure the merchantable timber and
firewood volume. The raw merchantable timber volume of teak in the community
forest was defined as the ligneous material contained in the bole and branches
which both with a diameter of at least 10cm. The result showed that D (taken at
about 1.3m above the ground) was a good predictor of H with r2 over 0.9672.
When D was combined with H, r2 was improved somewhat for the merchantable
timber volume, suggesting the growth patterns of tree dimensions were colesy
interdependent. A standing stock of the merchantable timber and firewood volume
of teak in the community forest was then estimated based on the allometric
relations. Proportions of the merchantable timber and firewood volume were
66.91% and 33.09% of total wood volume per tree, respectively. The potential of
merchantable timber and firewood volume in these community forest were 13.501
m3/ha and 8.686 m3/ha, respectively, with a basal area of 1.887 m2/ha. Based on
the basal area, Desa Natah community forests of teak could be classified into
extremely sparse of stands category.
Keywords: merchantable timber,
firewood, teak (Tectona grandis), community forest - allometric method
Penulis: Ris Hadi Purwanto,
Dian Asih Kurniasari
Kode Jurnal: jpkehutanandd090009
