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Jurnal Penelitian Hasil Hutan

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Published by Badan Penelitian dan Penegembangan Kehutanan

ISSN : 02164329 EISSN : 24428957 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management

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Articles 1,559 Documents

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EVEKTIVITAS PENGGUNAAN TIRFOR DAN KATROL TUAS PADA PENEBANGAN JATI DI JAWA TENGAH Maman Mansyur Idris; Zakaria Basari; Soenarno Soenarno
Jurnal Penelitian Hasil Hutan Vol 2, No 4 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The study of tirfor and lever block effectiveness in teak felling was conducted at the Perum Perhutani (The Forest State Corporation) Unit I Central Java on June 1982 and July 1983. Both felling equipments were used cut the press down to the desired directions.The purpose of the study is to find out the effects of tirfor and lever block on log damager in felling actives. The study was carried out in a three locations with different slopes i.e. 0 -10% and 11 – 30%.The result indicates that on the 11 - 30% slope, the tirfor reduces 5.25% log damages compared with that of the lever block. It is concluded that in sloped areas tirfor is more efective then lever block.

PEMBUATAN ARANG AKTIF DARI TEMPURUNG KELAPA, SERBUK KAYU, TEMPURUNG DAN TANDAN KELAPA SAWIT Gustan Pari; Sasa Abdurrohim
Jurnal Penelitian Hasil Hutan Vol 21, No 1 (2003): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The aim of this experiment was to learn the properties/characteristics of activated charcoal manufacturedfrom various lignocellulosic materials, i.e. coconut shell, oilpalm bunches, wood sawdust (sawn from mixed forest wood species), and empty oilpalm bunches.At first, each of the four lignocellulosic materials was carbonized into charcoal under the particular conditions, as follows : the materials converted to small particles with 0.3 0.5 cm size, an implementing carbonization temperature at 500oC. The charcoal was activated using the condition: activating temperature at 900oC for 30 minutes, and exercising air flow rate at 800 I,100oC. The variables implemented in this experiment were kinds of raw materials (i.e. 4 kinds as previously mentioned), and soaking in 1 percent NaOH (alkali) for 24 hours which was further compared with the one without soaking.Charcoal properties showed that coconut shell obtained the highest in fixed carbon content, the lowest in volatile matter and ash. Results in activated charcoal analyses showed that coconut shell obtained the highest in yield (50.5%) while the empty fruit bunch was the lowest (29.3%). The coconut shell also obtained the highest in fixed carbon (85.9%) while the lowest was saw dust (69.1%).Soaking treatment showed better quality on most of activated charcoal properties. Coconut shell gave the highest in benzene adsorption (20.17%) and iod adsorption (881.8 mg/g). In general, other raw materials showed low adsorption to benzene, while most of them has been met the AWWA B.600 78 standard or iod adsorption. The CPO refining showed that saw dust activated charcoal gave the best in refining (54.8% transmission) followed by empty fruit bunch, coconut shell and oil palm shell.

CARA SEDERHANA PENGAWETAN BAMBU SEGAR Barly Barly; Ginuk Sumarni
Jurnal Penelitian Hasil Hutan Vol 15, No 2 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Tujuan penelitian ini adalah penerapan pengawetan bambu baru ditebang dengan bahan pengawet senyawa boron. Delapan belas batang bambu dengan panjang dan diameter yang bervariasi dipungut dari Ciapus di Bogor. Batang bambu yang baru ditebang dimasukkan ke dalam larutun bahan pengawet senyawa boron secara terpisah masing-masing selama satu, tiga dan lima hari.Hasil penelitian menunjukkan bahwa retensi bahan pengawet dapat ditingkatkan dengan cara meningkatkan waktu pengawetan dan konsentrasi larutan yang digunakan. Hubungan antara waktu pengawetan dan konsentrasi yang digunakan menunjukkan perbedaan yang nyata. Retensi maksimum sebesar 7,64 kg/m3 dicapai dalam waktu lima hari dengan konsentrasi larutan 10%.

PENINGKATAN RENDEMEN DAN DAYA SERAP ARANG AKTIF DENGAN CARA KIMIA DOSIS RENDAH DAN GASIFIKASI (Improvement on recovery and quality of activated charcoal through low dossage chemical and gasification treatment) Hartoyo Hartoyo; Gustan Pari
Jurnal Penelitian Hasil Hutan Vol 11, No 5 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Study for improving the recovery and quality of activated charcoal through the combination of chemical and gasification treatments is presented in this paper. The material used in this experiments was charcoal derived from coconut shell. The material was immersed respectively in NaOH, Na2CO3, H3PO4 and ZnCl2 for 24 hours. Charcoal activation was conduted by using steam or combination of steam and mixed C02 and N2. The activated charcoal was produced in a stainless steel retort with electric heater at temperature of 900 - 1000°C.The result shows that the low dossage chemical treatment using NaOH at a concentration of 0,75%, or Na2C03 at a concentration of 0,75%, or ZnCl2 at a concentration of 5%, followed by activation by steam or the combination of steam and mixed C02 and N2.could produce good.quality activated charcoal which fullfils the commercial standard according to JIS. The produced charcoal attained the iodine adsorptive capacity of more than 1050 mg/g. By increasing the concentration of ZnCI2 to 10% or H3P04 to 20 %. followed by steam activation at 900°C - 1000°C, the iodine adsorptive capacity increased to more than 1200 mg/g.

POTENSI JALAN HUTAN DALAM AKSELERASI EROSI TANAH DI KALIMANTAN BARAT Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

A study on the potential of forest roads for accelerating soil erosion on was carried out at four logging companies in West Kalimantan in 1987. Road elements measured in the field are those related to the Universal Soil Loss Equation factors such as road openings, surfaces, slopes, and ditches, culverts, cuts, fills, diversion ditches, and the incidence of vegetation. The results showed that forest soil disturbances caused by road construction create ground condition which has high potentials for accelerating erosion. Factors that caused this problem, as identified in the field, are: log and steep slopes, wide ground openings, and bare soil surfaces, in addition to the originally sensitive to erosion soil type, and hot and wet weather.Further study is necessary in order to find the real amount of soil erosion occured in forest roads in West Kalimantan. Qualitatively it is known to be high but quantitatively it needs to be found

ANATOMI DAN IDENTIFIKASI 17 JENIS KAYU KURANG DI KENAL Anatomy and identification of 17 lesser known wood species Y I Mandang
Jurnal Penelitian Hasil Hutan Vol 8, No 2 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

~ .. anil anotOmical• ffOtura of 17 luaer #mown wood apeciea (1 ta•ilaa) ,,,.,..dwldikd and compared. There•arec :fhrff' of tlaem uilaich haw deebrative appearance. Le. Wrip~ia• tomentoa. fenumdoa.• ~eloba and-"1tophtorum~,.,_.:, •,'•.• ., .. ,_ .. •.For identificatio11 p~.; ...veral important features were noted. Tlaei_o~cur at leGlt •;n {!ne _member of the folow inl .tazo_n _; lJ. ~,,.;- rfnl {K>reo..f!.#1 W,Ood in Bipao~ae; 2J scalilrlform perfo1'ltion plate in Ala111iaceae; 8) veatured pit in CaualpiniDc~e; 4}. luJmoceilular ray. in Aceraceae, Bignoniaceae and Cae10ltJjnl4e«le;. SJ ray atoned in Cae1alpiniaceae;6) iilica• badlei;1n''Dlalium arid SWbltonia; 7) vertical chains of cry1tals in•Ca.,,inloaeO'e;,8) :ae.ptote fibe,., in•AnacardiaMi~' B~ arid Caesalplnlaceae; 9) radial mtercellular canal in Anacardiaceae and Buneraceae.

KUALITAS PAPAN PARTIKEL KAYU KARET (Hevea brasiliensis Muell. Arg) DAN BAMBU TALI (Gigantochloa apus Kurz) DENGAN PEREKAT LIKUIDA KAYU Ary Widiyanto
Jurnal Penelitian Hasil Hutan Vol 29, No 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Pemakaian perekat alami likuida kayu (wood liquids adhesive) dengan campuran kayu karet dan bambu tali dimaksudkan sebagai upaya pemanfaatan limbah kayu karet dan bambu tali, di samping sebagai substitusi perekat sintetis. Dalam penelitian ini digunakan analisis faktorial 3 x 3 dalam rancangan acak lengkap dengan dua kali ulangan. Faktor-faktor yang diteliti adalah jenis partikel (karet, bambu tali dan campurannya dengan perbandingan 50 : 50 berdasarkan berat kering tanur) dan kadar perekat (10%, 15% dan 20%). Hasil penelitian menunjukan bahwa perekat likuida kayu memiliki ciri-ciri sebagai berikut: pH kurang dari 1, viskositas sebesar 2,03 poise, kadar padat perekat 91%, waktu gelatinasi (90) 9 menit 48 detik, berat jenis 1,153 dan warna perekat hitam. Berdasarkan ciri tersebut, perekat likuida kayu belum memenuhi syarat SNI 06-0121-1987 untuk perekat phenol formaldehida. Papan partikel campuran kayu karet dan bambu tali memiliki kerapatan 0,83 g/cm3, kadar air 6,9%, pengembangan tebal 19%, daya serap air 28%, MOE 10540 kgf/cm2, MOR 258 kgf/cm2, dan Internal Bond (IB) 2,2 kgf/cm2. Berdasarkan ciri tersebut, papan partikel tersebut belum memenuhi syarat SNI 03-2105-1996 untuk papan partikel berkerapatan sedang (medium density particle board).

PENGAWETAN EMPAT JENIS KAYU UNTUK TIANG LISTRIK DENGAN METODA SEL PENUH Emmy Yetty; Barly Barly
Jurnal Penelitian Hasil Hutan Vol 7, No 4 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

A full cell treatment of four wood species with 5 and 7 percent copper-chrome-arcenic solution was conducted using small samples of 18-25 cm in diametre and 30 cm long. The cross cut-ends of the samples were coated to prevent penetration of the preservative through these parts. The preservation process were held for 2 and 4 hours at a pressure of 8 and 10 atmosphere. The result of the test revealed that four wood species (keluntum, medang, manggung and puspa) are recommended for power poles servation. The treatment shchedule proposed for four wood species is presented in this paper.

ESTIMASI POTENSI BIOMASSA DAN MASSA KARBON HUTAN TANAMAN Acacia crassicarpa DI LAHAN GAMBUT (Studi Kasus di Areal HTI Kayu Serat di Pelalawan, Propinsi Riau) Yuniawati Yuniawati; Ahmad Budiaman; Elias Elias
Jurnal Penelitian Hasil Hutan Vol 29, No 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Peran hutan sebagai penyerap dan penyimpan karbon tidak diragukan lagi untuk mengurangi jumlah karbon di atmosfer bumi sehingga mencegah efek gas rumah kaca (GRK) yang dapat menyebabkan pemanasan global. Diantara berbagai jenis hutan, terdapat jenis hutan gambut yang berfungsi sebagai penyimpan karbon terbesar. Penelitian dilaksanakan di hutan tanaman kayu serat spesies Acacia crassicarpa yang tumbuh di lahan gambut, secara administratif di bawah perusahaan pulp dan kertas di Pelalawan, propinsi Riau. Penelitian ini bertujuan untuk memperoleh persamaan alomterik yang terkait parameter pertumbuhan pohon A. crassicarpa yaitu diameter pohon (D) dan tinggi baik sebagai total (Htot) atau cabang bebas (Hbc) untuk hasil pertumbuhan biomassa (W) dan massa karbon (C). Metode penelitian ini dilaksanakan dengan menggunakan contoh dari pohon A. crassicarpa dengan umur berturut-turut 2,3,4 dan 5 tahun (antara lain batang utama, cabang, ranting, daun dan akar). Contoh tersebut dilakukan pengujian di laboratorium, dengan menguji kadar air, berat jenis, kadar abu, kadar zat terbang dan kadar karbon. Hasil persamaan alometrik yang diperoleh digunakan untuk mengukur dan memperkirakan potensi biomassa dan massa karbon dari tegakan pohon A. crassicarpa pada kelompok umur, yaitu 2,3,4 dan 5 tahun. Persamaan alometrik yang tepat dan paling mewakili adalah W = 0.398918D2,041Hbc0.165(untuk menghitung potensi biomassa) dan C = 0.131D1.246 Htot1.175(untuk menghitung potensi karbon). Penggunaan persamaan alometrik tersebut, akan menghasilkan potensi biomassa (W) A. crassicarpa untuk kelompok umur 2,3,4 dan 5 tahun berturut-turut yaitu 44,98 tons/ha, 70,35 tons/ha, 134,05 tons/ha dan 234,78 tons/ha. Sedangkan untuk nilai potensi massa karbon (C) sebesar 12,09 tons/ha, 36,23 tons/ ha, 76,09 tons/ha dan 133,10 tons/ha, masing-masing untuk kelompok umur pohon (2,3,4,5 tahun). Untuk menarik kesimpulan hasil penelitian ini bahwa pada berbagai umur tegakan pohon A. crassicarpa dan berbagai bagian pohon memberikan perbedaan nyata didalam biomassa dan massa karbon. Informasi penting ini patut mendapat perhatian secara menyeluruh untuk memperkirakan potensi biomassa dan massa karbon di pohon tertentu dengan tepat dan handal.

KELAS AWET JATI CEPAT TUMBUH DAN JATI KONVENSIONAL PADA BERBAGAI UMUR POHON Ginuk Sumarni; Mohammad Muslich
Jurnal Penelitian Hasil Hutan Vol 26, No 4 (2008): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Jati (Teaona grandis L.f.) cepat tumbuh yang dikembangkan melalui kultur jaringan yang bertujuan untuk meningkatkan pasokan kayu dari hutan tanaman. Informasi mengenai kualitas kayu jati cepat tumbuh belum banyak diketahui. Salah satu parameter kualitas kayu jati dapat dilihat dari kelas awetnya. Penelitian ini bertujuan membandingkan kelas awet antara jati cepat tumbuh dengan jati konvensional pada berbagai umur pohon. Contoh uji ukuran 5,0 cm x 2,5 cm x 2.0 cm diuji terhadap rayap kayu kering (Cryptotermes cynocephalus Light.), contoh uji ukuran 2.0 cm x 0.5 cm x 0.5 cm diuji terhadap rayap tanah (Coptotermes curvignathus Holmgreen.) dan contoh uji 7,5 cm x 5 cm x 1,5 cm diuji terhadap bubuk kayu kering (Heterobostrychus aequalis Waterh.) Hasil penelitian menunjukkan bahwa jati cepat tumbuh umur 5 dan 7 tahun serta jati konvensional umur 5, 7 dan 15 tahun mempunyai kelas awet rendah (kelas V-III) terhadap rayap kayu kering dan rayap tanah dan mendapat serangan ringan terhadap bubuk kayu kering. Namun demikian jati konvensional umur 35 tahun memiliki kelas awet tinggi (kelas I) terhadap rayap kayu kering dan rayap tanah dan mempunyai ketahanan yang tinggi terhadap serangan bubuk kayu kering.

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Hutan Vol 5, No 7 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 6 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 5 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 4 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 2 (1988): Jurnal Penelitian Hasil Hutan Vol 5, No 1 (1988): Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): Jurnal Penelitian Hasil Hutan Vol 4, No 3 (1987): Jurnal Penelitian Hasil Hutan Vol 4, No 2 (1987): Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan Vol 3, No 4 (1986): Jurnal Penelitian Hasil Hutan Vol 3, No 3 (1986): Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): Jurnal Penelitian Hasil Hutan Vol 3, No 1 (1986): Jurnal Penelitian Hasil Hutan Vol 2, No 4 (1985): Jurnal Penelitian Hasil Hutan Vol 2, No 3 (1985): Jurnal Penelitian Hasil Hutan Vol 2, No 2 (1985): Jurnal Penelitian Hasil Hutan Vol 2, No 1 (1985): Jurnal Penelitian Hasil Hutan Vol 1, No 4 (1984): Jurnal Penelitian Hasil Hutan Vol 1, No 3 (1984): Jurnal Penelitian Hasil Hutan Vol 1, No 2 (1984): Jurnal Penelitian Hasil Hutan Vol 1, No 1 (1984): Jurnal Penelitian Hasil Hutan More Issue

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