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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Kehutanan Papuasia (Journal of Papuasia Forestry)
Yohanes Y. Rahawarin
Fakultas Kehutanan, Universitas Negeri Papua, Manokwari
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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PERSENTASE LIMBAH PADA INDUSTRI SAWMILL PT. BERAU KARYA INDAH DI KABUPATEN TELUK BINTUNI YAYA; RUSDI ANGRIANTO; YOHANES Y. RAHAWARIN
JURNAL KEHUTANAN PAPUASIA Vol 6 No 1 (2020): Jurnal Kehutanan Papuasia
Publisher : Fakultas Kehutanan UNIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46703/jurnalpapuasia.Vol6.Iss1.196

Abstract

The goal of this study was to understand the types of wood waste and its percentage emanating from sawmill industry. The study situated in sawmill industry of PT. Berau Karya Indah, district of Teluk Bintuni. Data were performed in tabulation and exhibited in tables and images. The results indicated that wood waste obtained from wood processing was about 49.73% that consisted of wood sawdust around 20.69%, slash waste was about 29.03%. In detail, presentation of each detailed unit machine was elaborated such as breakdown saw produced about 4.20 %, ponny produced wood sawdust approximately 11.50 %, resaw indicated sawdust roughly 27 %, while from crosscut, the process produced sawdust approximately 7.02%. Another reuse wood waste was noticed for packing from the slash waste, but the overall wood waste has not been used proportionally due to lack of community engagement.
Komposisi Vegetasi Mangrove di Muara Sungai Siganoi Sorong Selatan - Papua Yohanes Y. Rahawarin
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 3 (2005): October 2005
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i3.2872

Abstract

The research was aimed to figure out the structure and composition of mangrove species in the delta of Siganoi River, Inanwatan District, South Sorong Regency, Papua. Belt transect was used and the data was analyzed using formula according to Clintron and Novelly. Research showed that ten species (seven genus) from five families were found in this area. At tree and sapling stages, Sonneratia alba performed the highest density with 324,1 trees/ha and 765,5 sapling/ha respectively, while at seedling stage Aegiceras corniculatumc with 69 seedling/ha. The highest frequency was found on trees and sapling of Sonneratia alba 0,966 and 0,431 respectevely. At the seedling stage, the highest frequency was found on species Aegiceras corniculatum (3970).
Co-Authors Rusdi Angrianto, Rusdi YAYA