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PENELAAHAN SIFAT PRIORITAS PEMANFAATAN JENIS TANAMAN UNTUK KAYU BAKAR Rachman Effendi; Suwidji Basuki; Han Roliadi
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

There is a need to classify fire wood for flue/ based on energy content. This research is conducted to categorized fire wood species using discriminant analysis.Data of which collected from each of research areas are plant varieties for fire wood, age classification, annual volume increase, specific gravity, calor value and volume of extractive elements.Variety of woods used for fire wood are Akasia (Acacia auriculiformis), Akasia (Acacia decurrens), Kaliandra (Calliandra callothyrsus), Gamal (Gliricidia maculata), Kemlandingan (Leucaena glauca), Turi (Sesbania grandiflora) and Jati (Tectona grandis). For the purpose of analysis of the type of relationship between annual volume increase (X1), specific gravity (X2), calor value (X3), volume of extractive elements (X4) and the adaptation order of plant varieties for fire wood is clasified by the discriminant function.The function is also used for determining adaptation order of utilization of plant varieties for fire wood.Based on the discriminant analysis it can be expressed as:Yj = 0.2148X1j + 9.7184X2j + 0.7231 X3j - 6.7121 X4j..................................................................(1). The result of average substitutions of annual volume increase, as specific gravity, ca/or value increase and volume of extractive elements decreased as described by the equation (I). It can be said that (the adaptation order of plant varieties for fire wood) produced from the most to the least based on its number of heat of combustion at the plantation age 2, 3 and 4 years are Akasia (Acacia decurrens), Akasia (Acacia auriculiformis), Kaliandra (Calliandra callethyrsus), Gamal (Gliricidia maculata), Kemlandingan (Leucaena glauca), Turi (Sesbania grandiflora) and Jati (Tectona grandis).

HASIL TUMPANG SARI HUTAN TERHADAP PENDAPATAN PESANGGEM DAN BIDANG DASAR TANAMAN POKOK DI CEPU, BLORA Akub J Abdurachman; Suwidji Basuki
Jurnal Penelitian Hasil Hutan Vol 5, No 7 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The scarcity of agriculture land and the increasing population around the forest have aucsed pressure on the forest resource. Taungya system approach is aimed at improving the prosperity of the people surrounding the forest through tree planting coupled with crops in two years period.The result of observation on Taungya system in Pasar Sore Forest District Administrations, Cepu, Central Java, revealed that the present income from taungya system contributed about 22 % of total income. Other interesting result showed that soil fertilization by peasant, beside gives positive effect on peasant income, it also causes positive impact on the growth of trees basal areas. Some variables analyzed in this study are taungya income (Y1), the cost of production facility such as fertilizer and insectiside cost (X1) man power (X2), non-taungya income (X3), and basal growth (Y2). The relationship resulted in regression models as follows : Y1 = -32,23 + 14,04X1 + 0,23X2 - 0,04X3 (R2 = 0,83) Y2 = 2.009,45 + 326,09 X1 + 2,98 X2 - 1,29 X3 (R2 = 0,78)

MODEL PENDUGAAN LIMBAH DALAM PENGUPASAN VENIR KAYU MERANTI DAN RAMIN Suwidji Basuki; Rachman Effendi
Jurnal Penelitian Hasil Hutan Vol 5, No 2 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The wood waste in plywood manufacturing can be used as fuel in the boiler so it is worth while to know how much waste is produced. The data obtained can be used as input to determine the amount of fuel to be purchased from outside source.In plywood making most waste is produced at peeling process, i.e. at rotary cutter, it could make up to 80 % of the total waste produced.This study showed that the waste of individual log is significantly affected by log diameter and log quality, the relationship is given by regression model.

NILAI TAMBAH PRODUKSI KAYU LAPIS, INDAH DARI BEBERAPA PERUSAHAAN DI SUMATRA UTARA Rachman Effendi; Suwidji Basuki
Jurnal Penelitian Hasil Hutan Vol 5, No 6 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

One of the products that can be produced from secondary process of plywood is fancy plywood. The product is usually constructed by overlaying plywood with fancy veneer or other material with nice decorative appearance. This process will add extra value to the final product intern of selling price as compared with ordinary plywood. In this study fancy. plywood is constructed by overlaying plywood with fancy veneer of jati, mahoni and rengas.Added value of fancy plywood (from plywood)in three ply mills in North Sumatra amounted to Rp.1,032,749,600 in one year resulted from 5141 cu.m of plywood. The value is accounted for production factors with the following proportion: 17.73 % from depreciation factor, 21.94 % from labour cost, and 60.33 % from profit, taxes, and others. The employment created by each factory is 48 workers which are equal to 13,920 man days per year.

ANALISIS PENGARUH KELEMBAGAAN TERHADAP KEBERHASILAN HTI-TRANSMIGRASI : Studi kasus di daerah Riau Setiasih Irawanti; B D Nasendi; Retno Maryani; Suwidji Basuki
Jurnal Penelitian Hasil Hutan Vol 14, No 6 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Transmigration-based Timber Estate (TTE) is an effort to combine transmigration programme and Timber Estate development, and it involves many institutions which sometimes have conflicting interests. The objective of this study is to identify existing institution, efficiency and effectiveness of TTE programme and to study the socio-economic condition of transmigrant.The result of analysis shows that community around forest adhered to traditional institution. And their understanding on the prevailing external institution of government and timber estate concession were relatively low. The aspiration of local community for having plantation usually ended up in chopping activity. Average chopped area was 13 Ha per household. This practice supported by village officials and made this institutional problem more complicated. Their claim of forest area as a customary right was triggered by their insecurity of a continous access to forest as a source of their livelihood.Only about 21,5% local community were willing to be relocated as a local transmigrant and only about 25-30% of those were worked effectively for timber estate, so TTE programme is yet considered effective in relocating, modifying way of life and improving participation of local community. The proprietary right on agricultural land in TTE programme was only 0,25Ha, so giving proprietary right on agricultural land in adequate extent is highly recommended.There were three kind of activities in timber estate development, namely land preparation,nursery, planting and weeding. Wage payment system on land preparation activity was contractual wages at about Rp 85.000-115.000 per Ha. The wage of nursery, planting and weeding activities were about Rp 4. 250- 4. 750 per day. Compared to the Regional Minimum Wages (UMR) for this region in 1993 which was Rp 4.150, labor wage of timber estate development met its social function. Average income labor family per month in land preparation was Rp 253. 600, whereas for planting and weeding was Rp 173. 100 and which nursery activity was Rp 163. 100. Compared to the Minimum Physical Needs (KFM) for this region which was Rp 266.197 in 1993, the earning of labor family from TTE was lower. It means their living condition had not improved yet.

MODEL PENDUGAAN PRODUKSI GONDORUKEM DI DAERAH JAWA TENGAH Suwidji Basuki; Akub J Abdurachman
Jurnal Penelitian Hasil Hutan Vol 7, No 3 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Total area of Pine forests at Perum Perhutani Unit I, Central Java, relatively enlarges each year, but its utilization for wood and resin tapping are only 60%. Pine resin processing of collophonium commodity has yielded 65% in volume. This study showed a predictive model of collophonium production at Central Java as Y = -11,32+0,65X1**-0,43X2 +0,14X3*The model above showed that Pine resin volume (X1) is highly significant and collophonium price (X3) is significant to collophoniutn production (Y), whereas labour variable (X2) is not significant because the ultilization of labour is not efficient yet. The simple regressions Y1 = 28,77 + 0,65 X1 and Y2 = 1075 + 9,35 X3 are used to explain the relation between Y and X1 or X2 individually.

APLIKASI STUDI DIAGNOSTIK BINA DESA HUTAN (BDH) Azis Khan; Beni D Nasendi; Suwidji Basuki; O K Karyono; Epi Syahadat; Suratman Suratman
Jurnal Penelitian Hasil Hutan Vol 15, No 4 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Pemerintah selalu menekankan pentingnya kelestarian hutan dengan segala fungsinya dan sekaligus bertekad untuk selalu memperhatikan peningkatan kesejahteraan masyarakat, khususnya yang hidup di dalam dan di sekitar hutan. Komitmen ini tercermin dari berbagai kebijaksanaan pemerintah yang antara lain mewajibkan para pengelola Hak Pengusahaan Hutan (HPH) dan Hak Pengusahaan Hutan Tanaman lndustri (HPHTI) untuk melaksanakan Bina Desa Hutan (BDH) secara lebih bertanggung jawab. Pelaksanaan BDH harus disusun berdasarkan hasil kajian Studi Diagnostik. Kedudukan Studi Diagnostik karenanya menjadi demikian strategis terutama bila dikaitkan dengan prospek keberhasilan pelaksanaan program BDH di lapangan. Antara lain dalam kerangka berfikir seperti inilah kegiatan Evaluasi Aplikasi Studi Diagnostik Sosial-Ekonomi BDH dilaksanakan. Evaluasi dilaksanakan dengan metoda survei dengan teknik kajian deskriftif-evaluatif sesuai kriteria dan indikator ekonomi, sosial budaya, lingkungan, kelembagaan, dan partisipasi masyarakat. Pelaksanaan evaluasi dilakukan di Wilayah Sumatera (Sumatera Barat, Riau, Sumatera Selatan), Kalimantan (Kalimantan Tengah, Kalimantan Timur dan Kalimantan Selatan), dan Indonesia Bagian Timur (lrian Jaya). Hasil evaluasi menunjukkan bahwa studi diagnostik umumnya kurang dapat mengantisipasi kondisi faktual desa binaan, sehingga hasilnya belum dapat dijadikan sebagai dasar perencanaan atau pelaksanaan program BDH.

PENELAAHAN SIFAT PRIORITAS PEMANFAATAN JENIS TANAMAN UNTUK KAYU BAKAR Rachman Effendi; Suwidji Basuki; Han Roliadi
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): 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.1987.4.4.35-40

There is a need to classify fire wood for flue/ based on energy content. This research is conducted to categorized fire wood species using discriminant analysis.Data of which collected from each of research areas are plant varieties for fire wood, age classification, annual volume increase, specific gravity, calor value and volume of extractive elements.Variety of woods used for fire wood are Akasia (Acacia auriculiformis), Akasia (Acacia decurrens), Kaliandra (Calliandra callothyrsus), Gamal (Gliricidia maculata), Kemlandingan (Leucaena glauca), Turi (Sesbania grandiflora) and Jati (Tectona grandis). For the purpose of analysis of the type of relationship between annual volume increase (X1), specific gravity (X2), calor value (X3), volume of extractive elements (X4) and the adaptation order of plant varieties for fire wood is clasified by the discriminant function.The function is also used for determining adaptation order of utilization of plant varieties for fire wood.Based on the discriminant analysis it can be expressed as:Yj = 0.2148X1j + 9.7184X2j + 0.7231 X3j - 6.7121 X4j..................................................................(1). The result of average substitutions of annual volume increase, as specific gravity, ca/or value increase and volume of extractive elements decreased as described by the equation (I). It can be said that (the adaptation order of plant varieties for fire wood) produced from the most to the least based on its number of heat of combustion at the plantation age 2, 3 and 4 years are Akasia (Acacia decurrens), Akasia (Acacia auriculiformis), Kaliandra (Calliandra callethyrsus), Gamal (Gliricidia maculata), Kemlandingan (Leucaena glauca), Turi (Sesbania grandiflora) and Jati (Tectona grandis).

HASIL TUMPANG SARI HUTAN TERHADAP PENDAPATAN PESANGGEM DAN BIDANG DASAR TANAMAN POKOK DI CEPU, BLORA Akub J Abdurachman; Suwidji Basuki
Jurnal Penelitian Hasil Hutan Vol 5, No 7 (1988): 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.1988.5.7.430-433

The scarcity of agriculture land and the increasing population around the forest have aucsed pressure on the forest resource. Taungya system approach is aimed at improving the prosperity of the people surrounding the forest through tree planting coupled with crops in two years period.The result of observation on Taungya system in Pasar Sore Forest District Administrations, Cepu, Central Java, revealed that the present income from taungya system contributed about 22 % of total income. Other interesting result showed that soil fertilization by peasant, beside gives positive effect on peasant income, it also causes positive impact on the growth of trees basal areas. Some variables analyzed in this study are taungya income (Y1), the cost of production facility such as fertilizer and insectiside cost (X1) man power (X2), non-taungya income (X3), and basal growth (Y2). The relationship resulted in regression models as follows : Y1 = -32,23 + 14,04X1 + 0,23X2 - 0,04X3 (R2 = 0,83) Y2 = 2.009,45 + 326,09 X1 + 2,98 X2 - 1,29 X3 (R2 = 0,78)

NILAI TAMBAH PRODUKSI KAYU LAPIS, INDAH DARI BEBERAPA PERUSAHAAN DI SUMATRA UTARA Rachman Effendi; Suwidji Basuki
Jurnal Penelitian Hasil Hutan Vol 5, No 6 (1988): 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.1988.5.6.378-381

One of the products that can be produced from secondary process of plywood is fancy plywood. The product is usually constructed by overlaying plywood with fancy veneer or other material with nice decorative appearance. This process will add extra value to the final product intern of selling price as compared with ordinary plywood. In this study fancy. plywood is constructed by overlaying plywood with fancy veneer of jati, mahoni and rengas.Added value of fancy plywood (from plywood)in three ply mills in North Sumatra amounted to Rp.1,032,749,600 in one year resulted from 5141 cu.m of plywood. The value is accounted for production factors with the following proportion: 17.73 % from depreciation factor, 21.94 % from labour cost, and 60.33 % from profit, taxes, and others. The employment created by each factory is 48 workers which are equal to 13,920 man days per year.

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