Studi Pembuatan Kelas Bonita pada Tegakan Acacia mangium Willd. di PT. Musi Hutan Persada, Sumatera Selatan
Abstract: Site index is
required to estimate forest productivity. This study was conducted to generate
a diameter-height model and use it to construct a direct site quality index for
Acacia mangium Willd. stands without thinning by dominant height approach in
PT. Musi Hutan Persada,South Sumatra. It comprises two phases, namely dominant
height curve development and site index construction based on semi-permanent
and permanent plots data. The regression analysis of maximum diameter was
employed to estimate the dominant height. The accepted diameter-height model
was used for modeling an anomorphic site index using Schumacher’s formula.
Dominant height could be estimated using the equation:
Ln h = 3.588 - (6.955/d) , (R2 =
0.91, sum of square error = 0.24), where h : dominant tree height and d: stem
diameter.
The equation was then used to modeling site index of A. mangium stands
with age index of 6-years.
Keywords: Acacia mangium,
forest productivity, site quality, site index, age index
Penulis: Heru Budi Santoso,
Ronggo Sadono, Ari Susanti
Kode Jurnal: jpkehutanandd080007
