POTENSI PERTUMBUHAN MERANTI DI AREAL BEKAS TEBANGAN DENGAN SISTEM SILVIKULTUR TEBANG PILIH TANAM JALUR (TPTJ) DI PT. SUKA JAYA MAKMUR KABUPATEN KETAPANG KALIMANTAN BARAT
Abstract: The purpose of this
study was to determine the increments of the diameter and height of the annual
average of Red Meranti trees at different age intervals through the use of
silvicultural Selective Cutting and Line Planting (TPTJ) carried out in the
logged area of PT . Suka Jaya Makmur in Ketapang Regency of West Kalimantan.
The research method applied was a single- plot method that is a method with a
sampling plot representing every logged age by measuring the plants diameters
and heights in the lane of the logged area of TPTJ line, and the sampling
applied was purporsive sampling. The increments of the average diameter growth
of Shorea johorensis species in planting forests were smaller than Shorea
leprosula and Shorea Shorea parvifolia. Whereas there was no decline or incline
in the diameter of that species in the natural forest that was staying in the
same value at 0.59 cm/year. The average increments of the diameters of Shorea
leprosula, Shorea johorensis, and Shorea parvifolia were 2.23 cm/year, 1.79 cm/year
and 1.81 m/year respectively. Moreover, the height average increments of Shorea
leprosula in the planting forest was 2,39 m/year and 0,53/year in the natural
forest. The average increase in height of Shorea johorensis in planting forest
was 1,93 m/year and 0,50 m/year in the natural forest, while for Shorea
parvifolia species, there was an average increment of height of 1,92 m/year in
planting forest and 0,58 m/year in the natural forest.
Penulis: Dewi Kartika Sari,
Iskandar AM, Gusti Hardiansyah
Kod Jurnal: jpkehutanandd130179
