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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

Arjuna Subject : -

Articles 1,559 Documents

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PENGARUH CARA PENGERINGAN TERHADAP AKTIVITAS MAKANDAN DAYA DAYA HIDUP RAYAP KAYU KERING CRYPTOTERMES CYNOCEPHALUS LIGHT Agus Ismanto; Ginuk Sumarni
Jurnal Penelitian Hasil Hutan Vol 10, No 2 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

This paper is dealing with the influence of drying methods to feeding activity and survival of Cryptotermes cynoce- phalus drywood termite. The result shows that drying methods have an effect on feeding activity and survival of C. cynocephalus. Besides the drying methods, wood species has also an effect on such both factor. The oven method is more advantageorus than desicator method which is more selective and more practice.

PEMBUATAN MINYAK KEMIRI DAN PEMURNIANNYA DENGAN ARANG AKTIF DAN BENTONIT Saptadi Darmawan
Jurnal Penelitian Hasil Hutan Vol 24, No 5 (2006): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Pembuatan minyak kemiri dapat dilakukan dengan cara sederhana dan mudah dilakukan oleh masyarakat. Perlakuan pemanasan pada biji kemiri dan daging kemiri sebelum proses pemecahan dan pengepresan serta penggunaan arang aktif dan bentonit pada tahap pemurnian minyak akan mempengaruhi kualitas minyak kemiri. Penelitian ini bertujuan untuk 1). mengetahui pengaruh pemanasan daging kemiri terhadap rendemen dan warna minyak yang dihasilkannya dan 2). mengetahui pengaruh jenis dan konsentrasi bahan pemucat (arang aktif dan bentonit) terhadap sifat fisiko-kimia minyak kemiri. Pemanasan pada biji kemiri berupa penjemuran (3, 4 dan 5 jam), penyangraian (7,5; 12,5 dan 17,5 menit) dan pengovenan pada suhu 60oC (1; 1,5 dan 2 jam) dimaksudkan untuk mendapatkan kondisi terbaik dalam pembuatan minyak kemiri dilihat dari rendemen dan warna minyaknya. Pembuatan minyak dilakukan dengan cara kempa hidraulik pada suhu 60oC. Minyak kemiri yang dihasilkan dari kondisi terbaik (penyangraian selama 1,5 jam) kemudian dimurnikan menggunakan arang aktif dan bentonit pada konsentrasi 2%, 3% dan 4% serta diuji sifat fisiko-kimianya. Penggunaan arang aktif sebesar 2% menghasilkan sifat fisiko-kimia minyak kemiri yang optimum dan telah memenuhi Standar Nasional Indonesia untuk indeks bias, berat jenis, bilangan iod dan bilangan asam.

ANALISIS SOSIAL EKONOMI PENGOLAHAN GONDORUKEM DAN TERPENTIN Setiasih Irawanti; Hendro Prahasto; Dwi Astuti
Jurnal Penelitian Hasil Hutan Vol 15, No 1 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Kegiatan pengolahan gondorukem dan terpentin dapat menciptakau nilai tambah, membuka kesempatan kerja dan mengembaugkan kegiatan ekonomi lain yang terkait. Hal ini mendoroug dilakukanuya analisis sosial ekonomi pekerja produksi, kemitraan antara Perhutani dengan Pabrik Gondorukem dan Terpentiu (PGT) Swasta dan nilai tambah yang dihasilkan oleh PGT Perhutani dan PGT Swasta.Hasil analisis menunjukkan bahwa dalam Kerjasama Peugolahan (KSP) antara Perhutani dau PGT Swasta, pemilik getah pinus, gondorukem dan terpentin adalah Perhutani dan kemitraan ini membatasi PGT Swasta untuk menghasilkan kelas kualita gondorukem setinggi- tingginya. Sebagai akibatuya, kesinambungan usaha PGT Swasta tergantung pada kemampuannya untuk melakukan proses produksi yang efisien dan PGT Swasta cenderuug menekan biaya produksi dengan cara menekan upah pekerja. Pekerja produksi PGT Swasta memiliki beberapa peudapatan dalam bentuk tunai yaitu uang pengikat, upah borongan memasak getah, premi, uang makan dan THR serta pendapatan dalam bentuk natura berupa pakaian. Fungsi uang pengikat seperti upah pokok pekerja, namun dasar penentuannya tidak mengacu pada ketentuan Upah Minimum Regional (UMR), di mana uang pengikat sekitar Rp 22.500 - 35.000 per bulan lebih kecil dari upah pokok menurut ketentuan UMR yaitu Rp 50.625 per bulan. PGT Swasta rata- rata hanya bekerja 18 hari per bulan, sehingga meskipun upah pekerja produksi relatif tinggi yaitu sekitar Rp 5.300 - 7.000 per hari namun jumlah upah per bulan relatif rendah yaitu sekitar Rp 53.000 - 120.000 per bulan. Jumlah seluruh pendapatan keluarga juga relatif rendah yaitu sekitar Rp 92.700 - 210.000 per bulan atau lebih kecil dari KFM sehingga kehidupan keluarga pekerja produksi PGT Swasta belum layak.Proses pengolahan gondorukem dan terpentin dapat meningkatkan nilainya sekitar 23,9 -34,1% per ton getah pinus yang diolah, di mana PGT Perhutani Jawa Tengah menciptakan rata-raia nilai tambali tertinggi.

PERANAN ENERGI KAYU BAKAR DAN MASALAH PERENCANAANNYA (The role of fuelwood energy and its planning problems) Hatiyatno Dwiprabowo
Jurnal Penelitian Hasil Hutan Vol 11, No 5 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The role of fuelwood energy in filling energy demand in Indonesia has bean substantial and it still will be important in the future. For instance, in 1989 it is estimated that the contribution of furlwood energy to total energy consumption in the country was around 45%. The general policy an national energy encourages development of renewable resources and new sources of energy to fill energy needs. Fuelwood as one of renewable resources will play important role as the development costs for other renewable resources remain high.The efforts to fill the fuelwood demand need careful planning and strategy formulation. However, presently data produced from previous surveys and studies are iadequate to support a database for planning purposes.This paper is almed to review the role of fuelwood energy and its planning challenges with respect to data availability, methodology, and institution.

APLIKASI ARANG KOMPOS PADA ANAKAN TUSAM Sri Komarayati; Gusmailina Gusmailina; G Pari
Jurnal Penelitian Hasil Hutan Vol 21, No 1 (2003): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Compost charcoal is a compounded stuff of charcoal and compost, which is produced by composting process. The compost charcoal compound products is a new break through in the composting techniques as an attempt to improve the qualitiy of compost.This experiment dealt with the application of compost and compost charcoal to the Pinus merkusii seedling, in the greenhouse for 3 months period.The results revealed that the use of compost alone 30 % of total media weight could stimulate the growth of Pinus merkusii seedlings to the level of 1 time higher in height ; 7 times greater in diameter ; 1,5 times longer in roots length, and 1,5 times heavier biomass in the dry weight than those of control (i.e. seedlings without compost treatment). Comparatively, the corresponding figures in the use of compost charcoal compound also at 30 % were consecutively 1 time higher in height ; 2 times greater in diameter; 1,5 2,6 times longer in root length and 4,6 6,0 times heavier biomass than the control.The use of compost and charcoal compost both at 30 % of total media weight showed the best effects on the growth of Pinus merkusii seedlings.

PERKEMBANGAN KEADAAN JALAN HUTAN MENURUT WAKTU DAN HUBUNGANNYA DENGAN POTENSI EROSI TANAH Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 7, No 3 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

An investigation of the development of forest road condition in relation to soil erosion potential was carried out at four logging companies in South Kalimantan in 1989 to find the potential of forest roads in erosion processes after constructed and continually used, or abandoned for various years. The condition of road elements especially those related to factors stated in the Universal Soil Loss Equation were recorded and, based on this information, the category of specific roads in erosion potentials was decided subjectively to either one of very small, small, medium, rather large, and large. From the results, the following conclusions may be withdrawn:In general, erosion potentials of forest roads is decreased with time due to the growth of various vegetation and the process of natural soil stabilization.For continually used main roads, erosion potentials after about 2 years are still rather large to large; after 3-6 years are medium; and beyond 6 yers are very small to small. If main roads are totally abandoned, erosion potentials after left around one year are rather large; after 2-3 years are small to medium; and beyond 3 years are very small.For branch roads, erosion potentials for those abandoned up to one year are rather large to large; abandoned 2 - 3 years are medium to rather large; beyond 3 years are very small to small. For skidding roads that constructed by clearing vegetation only or vegetation, litter and top soils all together, when abandoned one year or more, they were densely couered by vegetation and for litter and, therefore, their erosion potentials are very small to small. Erosion potential tendency for skidding roads constructed by soil cutting and filling is almost the same as that in branch roads.Logging company practices outside Java showed that they are lacking in the knowledge of soil erosion, soil stability, drainage structures, and using vegetation for covering soil surfaces, all of which are important in minimizing environmental disturbances due to road construction activities.

ANALISIS PENGEMBANGAN MODEL HUTAN TANAMAN INDUSTRI POLA MOSAIK DENGAN PENDEKATAN PROGRAM LINIER : Suatu Gagasan Pendekatan untuk Daerah Padang Lawas, Sumatera Utara B D Nasendi; Hasanudin Hasanudin; lwan Nugroho; Mulyaningrum Mulyaningrum; O K Karyono; Tryono Tryono; Abdul Murod; Walpen Sipayung
Jurnal Penelitian Hasil Hutan Vol 14, No 8 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

A Study of Industrial Plantation Forest model in Padang Lawas, North Sumatera using new concept of HTI (HTI - Mozaic) as HTI - Mix cropping or HTI - agroforestry, as it is not only for wood production but also for agriculture (Horticulture Crop) and grass for cattle was conducted.Optimal solution using Linear Programming approach shows that plant composition ofIndustrial Plantation Forest-Mozaic development in Padang Lawas area are; shorea (10000 ha ), albizia (6914 ha), akasia (9375 ha), palm oil (4757 ha), king grass and brachiaria (2499 ha ). Shorea has a highest shadow price and critical constraint, so the increase in land allocation for shorea will be profitable. Furthermore, post-optimal analysis indicates that land area for shorea is increased double, profit will also increase about Rp 49,361 billions. While for other commodities solutions are relatively stable.

PENGARUH SENYAWA BORON TERHADAP BEBERAPA SIFAT PAPAN PARTIKEL KARET (Hevea brasiliensis) Rodjak Memed; I M Sulastiningsih; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 10, No 5 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The objective of the study was to determine the effect of boron concentration and resin proportion on some properties of rubberwood (Hevea brasiliensis) particleboard. Boron concentrations used were 0, 0.25, 0.50, 0. 75 and 1.0%, and resin proportions in urea formaldehyde were 10, 12 and 14% dry weight basis.The results indicated that the addition of boron compound to porticleboard reduced the values of bending strength, internal bond strength and shear strength but increased the thickness swelling and water absorption of particleboard. Mechanical properties of particleboard increased with the increase of resin proportion. Thickness swelling and water absorption decreased as the resin proportion increases. Physical and mechanical properties of particleboard treated with boron compound up to 1% cocentration level and bonded with urea formaldehyde at 12% or 14% resin propotions were all met the SII standard requirements, except for internal bond strength. Compared with FAO standard, particleboards that met all the standard requirements were those with 14% resin proportion.

PRODUKTIVITAS DAN BIAYA PENYARADAN KAYU DENGAN GAJAH DI SUATU PERUSAHAAN HUTAN DI RIAU Dulsalam Dulsalam; Maman M Idris; Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 16, No 5 (1999): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Penelitian produktivitas penyaradan kayu dengan gajah ini dlakukan di suatu perusahaan hutan di Riau pada tahun I997. Tujuan dari penelitian ini adalah untuk mengetahui produktivitas dan biaya penyaradan kayu dengan gajah. Sasaran penelitian ini adalah memperoleh informasi teknis dan ekonomis mengenai penyaradan kayu dengan gajah. Informasi ini dapat dijadikan sebagai bahan acuan bagi para pengelola hutan dalam merencanakan penyaradan kayu dengan gajah. Data waktu kerja penyaradan, jarak sarad dan volume kayu yang disarad, harga gajah, biaya perawatan gajah dikumpulkan.Gajah liar yang telah dijinakkan dapat digunakan untuk kepentingan pengelolaan hutan misalnya untuk melakukan kegiatan penyaradan kayu. Volume kayu yang disarad pada penyaradan kayu dengan gajah tanpa alat bantu berkisar antara 0,163 - 0,563 m3/rit dengan rata-rata 0,322 m3/rit sedangkan volume kayu yang disarad dengan alat bantu berkisar antara 0,154- 0,519 m3/rit dengan rata-rata 0.320 m3/rit. Jarak sarad pada penyaradan kayu dengan gajah tanpa alat bantu berkisar antara 80-235 m dengan rata-rata 161 m, sedangkan jarak tersebut dengan alat bantu berkisar antara 70-235 m dengan rata·rata 160 m. Waktu kerja keseluruhan dalam penyaradan kayu dengan gajah tanpa alat bantu berkisar antara 6-29 menit (0,10 - 0,48 jam)per rit dengan rata-rata 16 menit (0,27 jam) per rit sedangkan waktu kerja tersebut dengan alat bantu berkisar antara 3,10-14,08 menit ( 0,05-0,40 jam) per rit dengan rata-rata 10,28 menit (0,17 jam) per rit. Produktivitas penyaradan kayu dengan gajah tanpa alat bantu berkisar antara 0,969-4,132 m3-hm/jam dengan rata-rata 1,972 m3-hm/jam ,sedangkan produktivitas penyaradan tersebut dengan alat bantu berkisar antara 1,260 - 5.112 m3hm/jam dengan rata 3,099 m3-hm/jam. Biaya penyaradan kayu dengan gajah tanpa alat bantu berkisar antara Rp 1.334- Rp 5.732 /m3-hm dengan rata-rata Rp 3.232/m3-hm sedangkan biaya penyaradan tersebut dengan alat bantu berkisar antara Rp 1.159-Rp 4.702/m3-hm dengan rata-rata Rp 2.201 /m3-hm. Disarankan volume kayu yang disarad tidak lebih dari 0,5 m3 per rit dan jarak sarad tidak lebih dari 300 m.

PENGARUH PENYARADAN KAYU DENGAN TRAKTOR RANTAI KELABANG TERHADAP KERUSAKAN TEGAKAN TINGGAL Maman Mansyur Idris; Yahya Fakuara; Gunarwan Suratmo; Rahardjo S Suparto
Jurnal Penelitian Hasil Hutan Vol 5, No 7 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The study of the effect of log skidding on the damage of residual stand was carried out in one logging company in West Kalimantan in 1986. The meaning of residual stand in the study are trees with diameter 20 cm and up. The result of the study shows that the average damage of residual stand is 18% per hectare, not included the damage caused by felling i.e. 15% per hectare. According lo Indonesian Selective Cutting System, the residual stand is good enough to fulfill the sustained yield condition, that is keep at least 25 core trees to be left per hectare. The role of skidded trees number and stand density was significant effect on the residual stand damage.

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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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