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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Penelitian Hasil Hutan JIKO (Jurnal Ilmiah Keperawatan Orthopedi)
Yuniawati
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology Nursing Public Health Veterinary

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Journal : Jurnal Penelitian Hasil Hutan

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PENERAPAN RIL GUNA MENINGKATKAN PRODUKTIVITAS DAN MEMINIMALKAN BIAYA PENYARADAN DI HUTAN TANAMAN RAWA GAMBUT Sona Suhartana; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 33 No. 3 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.3.215-224

Abstract

Logskiddingtechnique in peatland is different with those practiced in dry land. A well planningisrequired especiallyin the useof the skiddingtool. Since skiddingtakes a large portion of production costs, it is nedeed tocompensate by increasing productivity through implemention of the proper harvestingtechniques. This paper studies the increaseof productivity and minimize production cost by implementing RIL technique at peat swamp plantation forest. The study was conducted on 2012 at the work area of PT Satria Perkasa Agung, in Simpang Kanan District, Pelalawan, Riau Province. Data of skidding cost and productivity were processesed by using tabulation to obtain the mean and then analized using t-test of SPSS 18 software. Results show that: 1. RILSkidding technique in peatland could increase the averageof productivity by 8.37% and decrease the average production cost of 3.93%; 2. The use of proper matting lines on skidding in peat swamp forest can reduce uneffective time about 8.3% equal to 3.66minutes/trip.
KAJIAN LUAS PETAK TEBANG OPTIMAL DI HUTAN TANAMAN RAWA GAMBUT: KASUS DI SATU PERUSAHAAN HUTAN DI RIAU Sona Suhartana; Sukanda; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 30 No. 2 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.2.124-134

Abstract

Productive and effective logging activities are usually contentrated at the felling site. These mean that an ideas, felling site development at peat swamp forest plantation in determined by an optimum area. There has been limited study on optimum felling site area at peat swamp forest plantation in Indonesia. This study was carried out in June 2011 at concession area of Arara Abadi Company, Riau. This study aimed of finding out optimum felling site area at peat swamp forest plantation. Field data from some alternatives felling site area i.e. productivity and cost of skidding and canal maintenance/development were collected and processed by tabulation. Study result revealed that based on technique and cost aspects felling site of 150 m x 350 m is an optimum size.
ANALISIS KEBUTUHAN PERALATAN PEMANENAN KAYU: STUDI KASUS DI PT. SURYA HUTANI JAYA, KALIMANTAN TIMUR Sona Suhartana; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 35 No. 2 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.2.145-153

Abstract

Proper quantity of equipments in timber harvesting should be well planned and managed to obtain efficient time and cost of production. This paper study the proper quantity of timber harvesting equipment in accord with production target. The study was conducted in 2010 at PT Surya Hutani Jaya, East Kalimantan. Data collected from the field consisted of equipment productivities, owners and operating costs, number of equipments, and production plan. The collected data were then averaged, and the effects of equipments on productivity and production cost were analyzed using multiple linear regression. Results reveal that there are excessive and shortage uses of equipments in felling to hauling activities, according to the production plan. The most efficient wood harvesting equipments composition for the correlated production consist of 21 units chainsaws for felling, 9 units excavators for skidding, 10 units loaders, 2 units excavator for unloading and 31 units trucks for hauling. The number of timber harvesting equipments has significant influences on harvesting productivity and production cost.
FAKTOR EKSPLOITASI HUTAN DI SUB REGION KALIMANTAN TIMUR Soenarno; Wesman Edom; Zakaria Basari; Dulsalam; Sona Suhartana; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 34 No. 4 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.4.335-348

Abstract

Forest harvest is the first activity to undertake in extracting logs from the forest site. The amount of wood wastes generated during logging operation can be used for measuring the value of exploitation factor (FE). The greater FE indicates more efficient of wood utilization. Indonesian government has so far decided the formal FE is 0.7. This value is no longer accurate for the current better forest management situation which adopting practices of reduced impact logging-RIL and or RIL-C. Considering from economic aspects, the FE value has a very important role, i.e. as multiplying factor in determining annual allocation of wood production (JPT) and as a basic parameter in predicting earn business provision of natural forest (PSDH). Ecological aspects may interprete that the bigger FE value will bring about reduction of forest damages. This paper examines the FE in Sub-Region of East Kalimantan. Results show that the proper FE value for the East Kalimantan Province is ranged between 0.77 – 0.89. The amount of FE value is more influenced by factor of feller skills than the management competence factor of IUPHHKHA.
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; Ahmad Budiaman; Elias
Jurnal Penelitian Hasil Hutan Vol. 29 No. 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2011.29.4.343-355

Abstract

The role of forests as carbon sink and carbon store is undoubtedly important to reduce the carbon amount in the earth atmosphere thereby preventing greenbouse (GHG) effect that can induer the global warming. Among the varisar types of forest, peat swamp forest serves as the largest carbon store. A research bas been carried out at the fiber wond plantation forest comprising mostly Acacia crassicarpa species that grew on a peat land, at the Pelalawan sector, Rian Province. The research was to obtain allometric equatios that related the growth parameters of A. crassicarpa trees (Le tree diameter (D) and height either a total (tot) or branch free (Hbc)) to their growth products Le.biomess (W) and carbon mass (C). It was found that the best fitted and must representative allometric equations were consecutively IF= 0.398918D Hix (for estimating biomass patency) and C = 0.131D Htol""" (for carbon mass potency) Fartbremore, samples A. Crassicarpa tree from different stand ages (2,3,4, and 5 years old) covering particular free portions (Le main stems, branches, twigs, leaves, and roots) were tested for moisture contents, specific growity/density, ash content, volatile matter and fisced carbon. The allometric equations obtained were used to measure and estimate the biomass and carbon mass potencies of A. crassicarpa tree stands at their age group, iz. 2,3,4 and 5 years old Using those allometric equations, the estimates of biomass (W) of A. Crassicarpa for age 2, 3, 4 and 5 years old are 44.98 tons/ha, 70.35 tons/ha, 134.05 tons/ba, and 234.78 tons/year. The potency of carbon mass are 12.09 tons/ha, 36.23 tons/ha, 76.09 tons/ha and 133.10 tons/ha, for stand age 2,3,4 and 5 respectively.
PENINGKATAN PRODUKTIVITAS PEΜΑΝΕΝΑΝ KAYU MELALUI TEKNIK PEΜΑΝΕΝΑΝ KAYU RAMAH LINGKUNGAN: KASUS DI SATU PERUSAHAAN HUTAN RAWA GAMBUT DI KALIMANTAN BARAT Sona Suhartana; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 29 No. 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2011.29.4.369-384

Abstract

Implementation reduced impact logging (RIL) technique in peatlands may contribute optimum and sustainable yield. A study was carried out at concession area of Kalimantan Subur Permai Company, West Kalimantan. The area war a natural peat swamp forest set aside for the land-clearing in preparation for the establishment of industrial plantation forest, in which consisted of miced barkwood trees. This study examined possibility of increasing productivy, decreasing logging cast, subsidence, and water fluctuation using RIL. technique. Results revealed that the use of RIL in felling, skidding, loading, un-loading, and banling at peat swamp forest could: 1. Increase productivity for each activity of consecutively 0,946 m²/hour, 2,449 m² / Бомт, 1,96 m²/bour, 1,871 m²/hour, and 2,158 ml/bour, 2. Decreased production cost of Rp 992,1/m², Rp 3.088,6/, Rp 127,9/m², Rp 99,7/m², and Rp 158,6/m² consecutively; 3. Inceased timber efficiency utilization (TUE) about 6% equal to Rp 74,400,000/year, 4. Subridence proceeded at 0.375 om/year rate, which corresponded to 1.875 cm in five years. This figure was still lower than that stipulated in the Indonesia's Government Decree (PP) Na. 150-2000. 4. The averages of water level at logging site and canal were 61.75 cm and 52.25 cm, respectively.
LUAS PETAK TEBANG OPTIMAL PEMANENAN KAYU DI AREAL HUTAN TANAMAN RAWA GAMBUT Sona Suhartana; Yuniawati; Dulsalam
Jurnal Penelitian Hasil Hutan Vol. 32 No. 3 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.3.175-188

Abstract

Skidding, maintenance and canal establisment activities in peat swamp forest require comprehensive planning actionssince the forest has a critical land and difficult to reclamate when it is damaged seriously. It is required to determine anoptimum felling area, considering technical, economical and ecological aspects. A study was carried out in June 2013 atconcession area of Bina Silva Nusa (PT BSN) Company. This study aimed to find out the optimum felling area and theskidding productivity, as well as canal maintenance and establishment. Data were taken descriptively and purposively,which comprised of felling-plot areas (Y) and the costs (X) for skidding, maintenance, and canal establishment. Further,the obtained X-Y data couples were analyzed for possible quadratic regression models. This study resulted model of theoptimum felling area : 1. Y = 55.7 - 6.8 X + 0.21 X ; or Ln Y = 55.7 - 6.8 Ln X + 0.21 Ln X , whichR = 0.1532** or R = 0.391 (R = 0.254), with the optimum felling area (Y ) of 22.21 ha and the minimumcost (X ) as much as Rp 612.644.033; 2. The average increase of skidding productivity andestablishment/maintenance of the secondary canal, collector canal and tertiery canal were 1.37 m /hour (9.5%), 1.298m/hour (5.3%), 1.706 m/hour (2.33%), and 1.4 m/hour (1.3%).
Co-Authors Ahmad Budiaman Alfian Andini, Sarah Dulsalam Elias Herni Ningrum, Mutia Maman Mansyur Idris Sarah Andini Soenarno Sona Suhartana Sukadaryati Sukanda Wesman Edom Zakaria Basari