Browsing by Author "Bahruddin, Bahruddin"

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    Kayu Kelapa Sawit Peremajaan Kebun Sebagai Core Plywood Dan Penyimpan Karbon Di Provinsi Riau
    (2018-04-03) Siswoko, Endro; Mulyadi, Aras; Thamrin, Thamrin; Bahruddin, Bahruddin
    In 2016, the total area of oil palm plantation in Riau Province was 2,430,508 hectares. The treatment of oil palm waste from replanting activities via burning and decomposing may increases the amount carbon emission in the atmosphere which would cause global warming. This research aims to determine environment-friendly oil palm plantation management strategies, in particular oil palm trunks waste utilization as alternative staple source of making plywood core and carbon sequestration. This research took place at PT. Asia Forestama Raya’s (PT. AFR) factory in Pekanbaru, Riau Province. The data of this research was taken from 25 years-old replanted Tandum plantation owned by PT. Perkebunan Nusantara V Ltd. (state-owned) in Riau Province. Ninety one oil palm trunks were used for plywood core making test material. Based on technical aspect assessment (mechanical/physics), only 4 mm (three ply) plywood that passed all of the tests: adhesion shear strength, bonding strength, delamination, and moisture content. Oil palm tree has 223.68 kg C/trunk carbon biomass on average, or 28.63 ton C/ha. Carbon sink on core plywood was 53.68 kgC/trunk or 6.87 tonC/ha. Carbon dioxide stock -196.82 kgCO2/trunk, or -25.19 tonCO2/ha. The result of this research shows that oil palm trunks waste which was the biggest waste of replanting activities, could be used as an alternative timber/base source for plywood core that fulfills technical and also environmental aspects as carbon sequestration.
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    Prosiding Seminar Nasional Pengelolaan Daerah Aliran Sungai Secara Terpadu
    (wahyu sari yeni, 2018-09-19) Syahza, Almasdi; Suwondo, Suwondo; Bahruddin, Bahruddin; Darmadi, Darmadi
    Penelitian ini dilakukan untuk mengetahui kualitas perairan Sungai Subayang yang dilakukan pada bulan Januari 2016. Penelitian ini dilakukan dengan menggunakan metode survei, dimana pengambilan data menggunakan teknik purposive rondom sampling pada 6 stasiun dengan mempertimbangkan kondisi lingkungan. Parameter biologi yang diukur meliputi Keanekaragaman, Kepadatan, Dominasi. Parameter fisika dan kimia meliputi suhu, kecerahan, kecepatan arus, DO dan substrat dasar. Hasil penelitian ini menemukan 24 spesies yang terbagi menjadi 2 kelas yaitu kelas Insecta (23spesies) dan kelas gastropoda (1 spesies). Keanekaragaman makrozoobentos di Sungai Subayang berkisar antara 0,69 sampai 3,78, indeks tertinggi berada di stasiun I dan terendah terletak di stasiun VI. Indeks dominasi makrozoobentos di Sungai Subayang berkisar antara 0,16 sampai 0,53, indeks tertinggi berada di stasiun II dan terendah berada di stasiun IV. Sedangkan dominansi makrozoobentos di Sungai Subayang berkisar antara 0,16 - 0,53. Indeks dominansi menggambarkan ada atau tidaknya spesies makrozoobentos yang mendominasi perairaran tersebut. Berdasarkan indeks keanekaragaman kualitas perairan sungai subayang tergolong buruk hingga baik