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Jurnal Penelitian Hasil Hutan

JPHH
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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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ESTIMATING THE DETBBIORATION OF RAMIN LOGS GAUSED BY THE AMEROSIA BEEILE PLATYPUS TREPANATUB CHAP. (COLEOPTERA: PLATYPODIDAR)ⁱ Paimin sukartana
Jurnal Penelitian Hasil Hutan Vol 9, No 2 (1991): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Kerusakan dolok karena serangan kumbang ambrosia Platypus trepanatus Chap. (Coleoptera:’Platy pedidas) termasuk masalah terpenting dalam usaha penebangan pohon ramin (Gonystylus baneanus kurs.) selama ini penentuan derajatkerusakan karena serangan kumbang penggerek tersebut hanya dihitung berdasarkan jumlah lubang gerak yang terdapat pada permukaan dolok. Tampa memperhatikan perkembangan serangan di dalamny.Suatu metode penelitian dihembangkan perkembangan untuk menentukan tingkat kerusakan kayu berdasarkan pols penembusan lubang gerek serangan kumbang di dalam dolok. Dalam penelitian ini dilalukan penghitungan jumlah lubang gerak yang menembus dolok pada berbagai tingkat kedalaman.hasil analisis menunjukkan bahwa persamaan regrasi Y = 97,91+ 26,53X 10,51X2+0, 71X3dimana: Y =nisbah jumlah lubang gerek pada tiap tingkat kedalaman terhadap jumlah lubang pada permukaandolok (%) X= kedalaman bagian kayu dari permukaan dolok (cm)dapat digunakan sebagai dasar perhitungan tingkat kerusakan atau renderaen dolok ramin yang diserang oleh kumbang penggerek tersebut.

PENINGKATAN MUTU PADA GAHARU KUALITAS RENDAH Gusmailina Gusmailina
Jurnal Penelitian Hasil Hutan Vol 28, No 3 (2010): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Gaharu merupakan salah satu komoditi hasil hutan bukan kayu (HHBK) yang bernilai tinggi, terutama bila dilihat dari harga yang spesifik dibanding dengan komoditi lainnya. Gaharu mempunyai aroma yang wangi dan khas, sehingga gaharu telah lama diperdagangkan sebagai komoditi elit. Didalam perdagangan terdapat kelas gaharu yang mempunyai nilai ekonomis paling rendah yang tidak termasuk kelas manapun. Gaharu yang termasuk kelompok ini biasanya kurang mendapat perhatian dan cenderung tidak diminati oleh pasar. Adanya kelas kelompok gaharu tersebut umumnya disebabkan adanya penjualan batang gaharu padahal belum menghasilkan gaharu. Tulisan ini menyajikan hasil penelitian pendahuluan tentang upaya untuk meningkatkan kualitas gaharu kelas paling rendah dengan cara penetrasi larutan ekstrak gaharu dengan teknologi impregnasi. Hasil yang diperoleh menunjukkan bahwa gaharu kualitas rendah dapat ditingkatkan kualitasnya berdasarkan parameter warna, berat jenis, kadar resin serta volume larutan yang masuk kedalam gaharu. Rata-rata berat jenis gaharu meningkat antara 0,03 sampai 0,20. Kandungan resin gaharu setelah diproses meningkat 3 sampai 5 kali lipat dibanding blanko yaitu berkisar antara 29,5 sampai 52,0 %.

PRODUKTIVITAS DAN BIAYA PENYARADAN KAYU DI HUTAN TANAMAN RAWA GAMBUT: STUDI KASUS DI SALAH SATU PERUSAHAAN HUTAN DI RIAU Sona Suhartana; Sukanda Sukanda; Yuniawati Yuniawati
Jurnal Penelitian Hasil Hutan Vol 27, No 4 (2009): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2009.27.4.369-380

Penyaradan di hutan tanaman rawa gambut berbeda dengan penyaradan di lahan kering. Metode penyaradan yang digunakan adalah sistem manual dengan tenaga manusia, menggunakan sampan darat semi mekanis dan mekanis penuh yang ditarik ekskavator. Penelitian dilaksanakan pada bulan Mei 2008 di PT Arara Abadi, Riau. Tujuan penelitian adalah untuk mengetahui produktivitas dan biaya penyaradan di hutan tanaman rawa gambut. Data dianalisis dengan tabulasi dengan menghitung nilai rata-ratanya. Hasil penelitian menunjukkan bahwa : (1). Sistem penyaradan yang dipergunakan di rawa gambut kering dan rawa gambut basah di areal perusahaan ini adalah sistem manual (tenaga manusia), sistem sampan darat semi mekanis (semi mekanis) dan sampan darat mekanis (mekanis penuh); (2) Rata-rata produktivitas penyaradan mekanis penuh dan semi mekanis lebih tinggi daripada menggunakan sistem manual, yaitu masing-masing 27,79 m3.hm/jam dan 25,61 m3.hm/jam, dikarenakan volume kayu yang dapat disarad lebih besar; dan (3) Rata-rata biaya penyaradan sistem semi mekanis (Rp 18.190,5/m3.hm) dan mekanis penuh (Rp 15.926,5/m3.hm) lebih tinggi daripada dengan sistem manual (Rp 1.203,8/ m3.hm) karena pada kedua sistem terdahulu digunakan ekskavator yang biayanya tinggi.

PENGARUH KONDISI PENGGORENGAN TERHADAP KUALITAS ROTAN MANAU (CALAMUS MANAN MIQ.) Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 1, No 4 (1984): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The effect of cooking condition on the quality of rattan is presented in this article. Round fresh manau rattan samples, each of 100 cm in length and 3 cm in diameter were 80 stems in all.The samples were devided into 4 groups before cooking. Each group was cooked with four different oil mixtures and four levels of cooking time.The results reveal that the composition of cooking oils has a significant effect on the cane color and compressive strength parallel to grain. but has no effect on shear strength of the rattan.The mixtures containing coconut oil tends to reduce the rate of rattan skin color change during cooking. Also, such composition produced better rattan skin color in comparison with those treated with others.

SIFAT PELENGKUNGAN KAYU TUSAM (Pinus Mekusii Jungh et de Vries) DENGAN DUA MACAM PERLAKUAN AWAL Achmad Supriadi; Osly Rachman
Jurnal Penelitian Hasil Hutan Vol 20, No 5 (2002): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The investigation on the bending characteristics of wood conducted in Indonesia was still very limited. In contrast, the use of bent wood in the country has intensively increase particularly in furniture industry. The preparation of such bent wood at present still dominated by sawing and planing, thereby resulting in enormous woody wastes. Besides, the strength of the corresponding wood and the beauty of its orienting fiber grains are decreasing sharply.The experiment on the bending of tusam wood taken from either its tapped or untapped portion of trees has been conducted. Tusam wood was bent with the following pretreatments : boiling the wood in the hot water al 100°C, and immersing it in urea solution. Wood bending was also prepared without such pretreatments (as control). The bending was performed at five various radiuses, i.e 80 cm; 56 cm; 45 cm; 25 cm and 15 cm. The evaluation of bending value used an ordinal scale beginning from 1 to 5 were respectively for the biggest to the smallest radius. The results of bending experiment turned out to be the best for the one with the boiling pretreatment prior to bending, and the values were consecutively 2,65; 2,28 and 1,58. The critical events occurred at 15 cm radius for the bent wood with the boiling treatment, and at 25 cm for the ones with urea immersion as well as control. The bending radius significantly effected the bending results, while the tapping and fiber grain orientation did not cause a pronounced effect.The deformation setting in the radius resulting from the bending ranged from 1,93 to 4, 13 percent. The was a trend that the longer the boiling duration, the lower the changes in the bending radius.

APLIKASI METODE BOUCHERI UNTUK MENGAWETKAN BAMBU SEGAR Pipin Permadi; Ginuk Sumarni
Jurnal Penelitian Hasil Hutan Vol 13, No 8 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

This paper deals with reseach results on bamboo preservation using boucherie method. Two bamboo species, namely andong (Gigantocloa verticillta Munro) and tali (Gigantochloa apus Kurtz) were treated freshly using Borax (Na2B4O7. IOH2O) solution with strenght solution of 5% as preservative. One of butt of the 8 length bamboo was immersed 10 cm in borax solution for 2. 4. 6, 8. and 10 days and the penetration of preservative were observed. The results showed that the penetration of preservative in andong bamboo for 2. 5, 6, 8, and 10 consecutively were 131,40 cm, 304,92 cm, 308.42 cm, 469,88 and 315,28 cm, while in tali, bamboo were 68,30 cm, 116.83 cm, 141,88 cm and 128,17 cm, respectively. Maximum pnetration of preservative was achived in 8 days immersion for andong and 6 days tali.

PENGARUH PERLAKUAN PENDAHULUAN BIJI KEMIRI TERHADAP RENDEMEN DAN SIFAT MINYAKNYA (Pretreatment effects of candle nut seedoil on oil yiled and its properties) Bambang Wiyono; Poedji Hastoeti
Jurnal Penelitian Hasil Hutan Vol 11, No 5 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The purpose of this research is to study the pretreatment effects of candle nut seed oil on oil yield and its properties. Pretreatments consisted of dry-frying steaming and unpretreatment. The dry-frying was carried out at 100°C for 15 minutes, and steaming was carried out for 30 minutes at the same temperature. Each pretreatment was pressed at 110 kg/cm2 and the difference between means were tested with the LSD procedure.The results showed that pretreatment gave a highly significant effect on oil yield, specific gravity, saponification number and unsaponifiable matter. It also provided a significant effect on acid number and acid content caloulated as oleic acid. The dry-frying produced the highest of oil yield, a higher specific gravity, and a lower acid number, acid content and unsaponifiable matter based on the oil yield, specific gravity and acid number, the dry-frying method is the best pretreatment compared to the others.

PEMBUDIDAYAAN JAMUR KUPING PADA SEBELAS JENIS KAYU Sihati Suprapti
Jurnal Penelitian Hasil Hutan Vol 5, No 3 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

he ear mushroom, Auricularia polytrica (Basidiomycetes: Auriculariaceae) was cultivated on logs of eleven wood species, i.e. hamerang (Ficus grossularoides Burn, f.), jeungjing (Albizia falcataria (L.) Fosb.), kaliandra (Calliandra calothyrsus Meissn.), kihuut (Vernonia arborea Ham.), kipiit (Maesa ramentacea Wall.), kiwates (Eurya acuminata AP. DC.), manii (Maesopsis eminii Engl.), sehang (Ficus padana Burn. f.), seuseureuhan (Piper aduncum L.), teureup (Artocarpus elastica Reinw.) dan tusam (Pinus merkusii Jung et de Vr.). The logs were kept slanted on an angle of ± 60° with bamboo supports in a mushroom house, at Gunung Bunder forest complex, Bogor. The mature mushroom were harvested daily after the growth of the fruiting body.The logs start producing fungus two months after inoculation. The average yield per log during the seven month observation was 412.15 g (sehang), 302.43 g (manii), 251.6 g (seuseureuhan), 243.6 g (kihuut). The lower yield was 28.85 g (kiwates), 12 g (jeungjing) and 8.85 (tusam).After seven month observation, the higher total yield was obtained from manii (83.18 kg), seuseureuhan (79.97 kg), sehang (76.91 kg), kihuut (69.09 kg) perm3 of log. The lower total yield per m3 of log was obtained from kaliandra (29.35 kg), teureup (22.75 kg), kiwates (11.98 kg), Jeungjing (4.45kg) and the lowest total yield was on tusam (1.87 kg).

EFEKTIVITAS JALAN HUTAN DI SUATU PERUSAHAAN HUTAN DI RIAU Dulsalam Dulsalam; Jurnalis Thaib
Jurnal Penelitian Hasil Hutan Vol 7, No 2 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

An investigation on the effectiveness of forest roads was conducted at PT Siak Raya Timber in Riau in 1989. The objective is to find out the information on construction and uses of forest roads. The length of main and branch roads and target and actual productions during the latest six years (from1983/1984 to 198811989) were collected. The investigation results reveal that: 1.The length of forest roads built annually by PT Siak Raya Timber ranged from 16 km (consisting of 10 km main and 6 km branch roads) to 85 km (consisting of 65 km main and 20 km branch roads), with an average of 21.66 km (consisting of 11.68 km main and 20 km branch roads). 2.The annual felling area of PT Siak Raya Timber was 2,600 ha. The road densities ranged from 6.16 m/ha to 32.69 m/ha with an average of 21.66 m/ha. The road density is some what high compared to that stated in the Forest Agreement. 3.The actual production of logs at PT Siak Raya Timber ranged from 21,225.65 m3/year to 47,199.04 m3/year with an average of 34,417.03 m3/year. 4.The differencf between target and actual production averages was relatively large i.e. 75,500 m3/year compared to 34,417.03 m3/year. The effectiveness of forest roads ranged from 268.67m3/km-year to 2,305.86 m3/km-year with an average of 1,010 m3/km-year.

PENGAWETAN WARNA KAYU TUSAM (Pinus merkusii) DAN PULAI (Alstonia sp.) DENGAN MENGGUNAKAN BAHAN DASAR DISINFEKTAN Barly Barly; Dominicus Martono; Abdurachman Abdurachman
Jurnal Penelitian Hasil Hutan Vol 30, No 2 (2012): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Warna di antara berbagai jenis kayu sangat bervariasi, meskipun dalam jenis kayu yang samaperbedaan tersebut relatif kecil. Perbedaan warna kayu pada bagian permukaan atau inti dari suatupapan dapat menimbulkan masalah dalam perdagangan atau penampakan dari suatu produk akhir.Perubahanwarna yang tidak diharapkan sering terjadi selama proses pengeringan. Penelitian bertujuanuntuk mempelajari perubahan warna alami kayu pulai (Alstonia sp.)dan tusam (Pinus merkusii). Pencegahan perubahan warna dilakukan secara kimia dengan menggunakan bahan aktif benzilkonium klorida (A dan D), fenol (B dan C), asam kresilat (E), natrium hipoklorit (F) dan metilena-bisthiocyanate (G). Contoh uji kayu basah dilabur bahan di atas dan bersama kontrol disimpan dalam ruang AC pada RH 70 dan suhu 18 C, di ruang teras dan dalam oven pada suhu 60 dan 120 C. Hasil pengujian menunjukkan nilai kecerahan (L*) tertinggi diperoleh pada kayu pulai di bagian permukaan dan di bagian dalam balok menggunakan formulasi D, yaitu 87,3 dan 89,3 dengan nilai total variasi kecerahan ( L*) -6,7 dan -4,7. Sementara, pada kayu tusam di bagian permukaan dan di bagian dalam balok menggunakan formulasi F, yaitu 83,5 dan 80,0 dengan total variasi). Pencegahan perubahan warna dilakukan secara kimia dengan menggunakan bahan aktif benzilkonium klorida (A dan D), fenol (B dan C), asam kresilat (E), natrium hipoklorit (F) dan metilena-bisthiocyanate (G). Contoh uji kayu basah dilabur bahan di atas dan bersama kontrol disimpan dalam ruang AC pada RH 70 dan suhu 18 C, di ruang teras dan dalam oven pada suhu 60 dan 120 C. Hasil pengujian menunjukkan nilai kecerahan (L*) tertinggi diperoleh pada kayu pulai di bagian permukaan dan di bagian dalam balok menggunakan formulasi D, yaitu 87,3 dan 89,3 dengan nilai total variasi kecerahan ( L*) -6,7 dan -4,7. Sementara, pada kayu tusam di bagian permukaan dan di bagian dalam balok menggunakan formulasi F, yaitu 83,5 dan 80,0 dengan total variasi kecerahan -10,5 dan -14,0. Nilai tersebut dihasilkan pada kayu yang disimpan dalam suhu dan kelembaban rendah (AC).

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(1994): Jurnal Penelitian Hasil Hutan Vol 11, No 8 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 7 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 5 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 4 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 3 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 2 (1993): Jurnal Penelitian Hasil Hutan Vol 11, No 1 (1993): Jurnal Penelitian Hasil Hutan Vol 10, No 6 (1992): Jurnal Penelitian Hasil Hutan Vol 10, No 5 (1992): Jurnal Penelitian Hasil Hutan Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan Vol 10, No 3 (1992): Jurnal Penelitian Hasil Hutan Vol 10, No 2 (1992): Jurnal Penelitian Hasil Hutan Vol 10, No 1 (1992): Jurnal Penelitian Hasil Hutan Vol 9, No 7 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 6 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 5 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 4 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 3 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 2 (1991): Jurnal Penelitian Hasil Hutan Vol 9, No 1 (1991): Jurnal Penelitian Hasil Hutan Vol 8, No 6 (1991): Jurnal Penelitian Hasil Hutan Vol 8, No 5 (1991): Jurnal Penelitian Hasil Hutan Vol 8, No 4 (1990): Jurnal Penelitian Hasil Hutan Vol 8, No 3 (1990): Jurnal Penelitian Hasil Hutan Vol 8, No 2 (1990): Jurnal Penelitian Hasil Hutan Vol 8, No 1 (1990): Jurnal Penelitian Hasil Hutan Vol 7, No 4 (1990): Jurnal Penelitian Hasil Hutan Vol 7, No 3 (1990): Jurnal Penelitian Hasil Hutan Vol 7, No 2 (1990): Jurnal Penelitian Hasil Hutan Vol 7, No 1 (1990): Jurnal Penelitian Hasil Hutan Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan Vol 6, No 7 (1990): Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan Vol 6, No 5 (1989): Jurnal Penelitian Hasil Hutan Vol 6, No 4 (1989): Jurnal Penelitian Hasil Hutan Vol 6, No 3 (1989): Jurnal Penelitian Hasil Hutan Vol 6, No 2 (1989): Jurnal Penelitian Hasil Hutan Vol 6, No 1 (1989): Jurnal Penelitian Hasil 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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