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Soenarno
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UJI COBA PENEBANGAN KAYU BERBASIS ZERO WASTE DAN RAMAH LINGKUNGAN PADA HUTAN ALAM DI PROVINSI KALIMANTAN TENGAH Soenarno; Dulsalam; Yuniawati
Jurnal Penelitian Hasil Hutan Vol. 38 No. 2 (2020): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2020.38.2.105-118

Abstract

Over the last five years (2013−2017) there has been a deficit of ± 23.2 million m3year of wood raw materials,while the facts in the field of timber harvesting are still wasteful with leaving logging waste reaching an average of 17%of the annual production quota target of 9.1 million m3/year. The trial of zero waste-based and environmentallytimber harvesting method (ZWL) is important to strengthen the tree length logging methods. This research aimed toobtain data and technical information related to the efficiency of wood utilization and the potential of timber loggingwaste. The trial results showed that zero waste and environmentally timber harvesting methods could improve woodutilization efficiency by 9%, from an average of 82.9% to an average of 91.9%, and reduce the potential for clearbole (BBC) logging waste from an average of 12% (0.863 m3/ tree) to only 8.1% (0.418 m3/tree). In addition, itwas able to save the potential of logging waste from stems above the branch (BAC) ranging from 2.8−11.2% with anaverage of 6.4% (0.418 m3/tree). However, ecologically it could not reduce damage to residual stands which reached37.7% while conventional methods amounted to 38.8%. Potential logging waste both BBC and BAC were mostlydefective (50.5−58.3%), and some were still good (14.4−26.3%) while those with broken conditions were still quitehigh (22.6-27.3% ). Until now, the potency of timber harvesting waste has not been utilized due to the considerationof the high cost of Non-Tax Government Income (PNBP) levies, uncertainty in the application of the Minister ofEnvironment and Forestry Regulation Number: P.1/Menlhk/Setjen/Kum.1/1/2019, and the ZWL method hasnot been informed yet to minimize the cost of logging waste extraction. In order to reduce timber harvesting waste andresidual stand damage, the forest management refresh logging and skidding techniques to improve the skills of thechainsaw and the tractor operators.
KERUSAKAN TEGAKAN TINGGAL AKIBAT PEMANENAN KAYU PADA HUTAN TROPIS BERBUKIT DI KALIMANTAN TENGAH Soenarno; Wesman Endom; Sofwan Bustomi
Jurnal Penelitian Hasil Hutan Vol. 35 No. 4 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.4.273-288

Abstract

One indicator of sustainable forest management is the minimum impact of residual stand damage caused by timber harvesting activities. This paper examines stand damage due to timber harvesting on hilly tropical forest, Central Kalimantan. The study was carried out using samples plot of 200 m x 100 m that was systematically placed on three selected cutting plots with different chainsaw operators working experience. Results showed that the degree of residual stands damage due to timber harvesting ranged between 19.37 – 34.9% with an average of 24.37% categorized as light stand damage. The average stands damage due to felling was 16.27% and skidding was 8.1%. Unexperienced chainsaw operators tend to cause greater damage than well trained chainsaw. Type of residual damage due to the felling on either sloping, rather steep or steep terrain was dominated by broken tree trunks. The most common type of residual stand damage due to skidding was the collapsed or tilted trees. The residual stand damage due to timber harvesting could be reduced by imposing intensive supervision in the felling sites and provide training and/or refresher to chainsaw and skidding tractor operators especially on cutting technique and environmentally friendly skidding.
UNJUK KERJA TEKNIK PENYARADAN KAYU DENGAN METODE TREE LENGTH LOGGING PADA HUTAN ALAM LAHAN KERING Maman Mansyur Idris; Soenarno
Jurnal Penelitian Hasil Hutan Vol. 33 No. 2 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.2.153-166

Abstract

In Indonesia, logging in natural forests is generally undertaken by cutting the main trunk along the clear boles and skidding the trunk to the landing point. This paper examines skidding performance of an alternative method, i.e. tree length logging which conducted by cutting off the stem above the first branch up to minimum diameter of 20 cm, which is manifested by the productivity and skidding cost. The method was practiced in four areas of Licency Natural Forest Concessionary managed by intensive sylvicultural system. Results show that the log skidding productivity ranged from 21.127 – 23.893 m³/hour with average of 22.217m³/hour depending on skidding distance. Meanwhile, skidding cost of tree length method ranged from Rp 24,852.36 - Rp 29,318.49/m³ with average of Rp 28,628.10/m³ with skidding distance ranged from 100 m to 225 m.
PENERAPAN METODE TREE LENGTH LOGGING SKALA OPERASIONAL DI AREAL TEKNIK SILVIKULTUR INTENSIF (STUDI KASUS DI PT SARMIENTO PARAKANCA TIMBER PROVINSI KALIMANTAN TIMUR) Maman Mansyur Idris; Soenarno
Jurnal Penelitian Hasil Hutan Vol. 33 No. 1 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.1.19-34

Abstract

Tree length logging method is an alternative way in timber harvesting to improve the efficiency of timber utilization and preservation of forests resources. This paper studies the performance of tree length logging application method in operational scale. Observation was conducted in the forest area of PT Sarimelati Parakanca Timber in East Kotawaringin Regency, Central Kalimantan Province, where Intensive Silvicultural Technique (SILIN) was applied. Data were collected through observation and direct measurements in the field including labor productivity and cost of felling and skidding, logging waste, exploitation factor (FE) and the damage of residual stand. Results show both felling productivities and skidding were improved. The felling capacity was improved into 60.535 m³/hour and skidding was improved into 31.931 m³/hour. The application of tree length logging can also reduce the felling cost into Rp 1,604.36/m³ and skidding cost into Rp 21,142.75/m³. The method also increase the exploitation factors (FE) into 0.93 and minimize the damage on residual stand by 20.70%.
REKAYASA DAN UJI COBA ALAT KABEL LAYANG Expo-2000 GENERASI-3 DALAM PENGELUARAN KAYU PADA LERENG CURAM Wesman Endom; Soenarno
Jurnal Penelitian Hasil Hutan Vol. 33 No. 1 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.1.47-60

Abstract

The engineering and trial testing on the skyline system tool of third Generation Expo-2000 powered by 13-HP engine was conducted to look into its performance for exstracting wood logs from the forest at steep terrain. This undertaking took place at Forestry District Resort of Tanggeung, Forestry District of Cianjur, the State-Owned Forest Enterprise Unit III, Cibatu Village, West Java. Results revealed that working productivity was 1.72 m³ of wood/hour, with the entire cost of tool ownership and wood extraction at Rp 138,587.39/hour or being equal to Rp 80,346.45/m³.
ANALISIS BIAYA PENEBANGAN SISTEM SWAKELOLA: STUDI KASUS DI DUA IUPHHK-HA KALIMANTAN TENGAH Soenarno
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.2017.35.2.101-114

Abstract

To improve the efficiency of timber harvesting process, forest industries have implemented tree length logging technique. Unfortunately, the effort in utilization as much as the tree parts has not been followed by minimizing the production cost, for example in the felling process. Industries apply a full contract felling system by involving third party even it is considered as an expensive cost. A solution of this problem is by implementing self-management felling system. This paper studies the felling cost conducted by third party and self-management. The study was carried out at two natural forest concessionaires (IUPHHK-HA) Central Kalimantan. Results reveal that self-managed felling system in both 3 3 IUPHHK-HA PT. A and PT. B costed about IDR 4,051.11/m and IDR 6,800.11/m , respectively. This cost is, 3 cheaper than the contract felling system which is ranged from IDR 6,000 to 7,000/m . Hence, for cost efficency, implementing self-management felling system is recommended.
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.
POTENSI DAN KARAKTERISTIK LIMBAH PEMBALAKAN PADA PT KEMAKMURAN BERKAH TIMBER PROVINSI KALIMANTAN TIMUR Soenarno
Jurnal Penelitian Hasil Hutan Vol. 32 No. 2 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.2.151-166

Abstract

Despite logging activity has been carried out carefully, the logging waste remains difficult to avoid. Occurrence of logging waste is caused by natural factors (hole, crooked, rotten pith, notch) and technical factors (splits and other felling faults). Individual logging waste at natural forest concession of PT Kemakmuran Berkah Timber ranged from 0.577 to 0.728 m³/tree with an average of 0.677 m³/tree. The waste of stump (0.006 m³/tree), 0.325 m³/tree), and in top (0.355 m³/tree). In regard with wood quality, 0.378 m³/tree (± 55.85%) of them can be categorized as “good”, and the remaining 0.299 m³/tree (± 44.15%) is classfied as “defect”, continuing notch, bent, broken or holes. Potency and charactertic of logging wastes differ among Red Meranti (Shorea spp.), Kapur (Dryobalanops spp.) and Majau (S. johorensis). For Red Meranti, the butt waste were greater (0.623 m³/tree or 64.94%) than the top waste (0.322 m³/tree or 34.17%) and the stump waste (0.009 m³/tree or 1.00%). Kapur (Dryobalanops spp.) and Majau (S. johorensis), top waste than the butt and stump wastes volume of Kapur have greater is 0.356 m³/tree (81.63%), with butt waste of 0.076 m³/tree (17.51%) and stump waste of 0.004 m³/tree (0.86%). The logging wastes of Majau were 0.385 m³/tree (59.42%); 0.257 m³/tree (39.72%), and 0.006 m³/tree (0.86%), for the top, butt and stump respectively.
Co-Authors Dulsalam Maman Mansyur Idris Mutia Herni Ningrum Sarah Andin Satria Astana Sofwan Bustomi Sona Suhartana Sukadaryati Wesman Edom Wesman Endom Yuniawati Zakaria Basari