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PENGGUNAAN JUMLAH PERALATAN PEMANENAN KAYU YANG EFISIEN GUNA PENCAPAIAN RENCANA PRODUKSI KAYU DI SATU PERUSAHAAN HUTAN PRODUKSI ALAM, KALIMANTAN UTARA Sona Suhartana; Yuniawati Yuniawati
Jurnal Hutan Tropis Vol 5, No 1 (2017): Jurnal Hutan Tropis Volume 5 Nomer 1 Edisi Maret 2017
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v5i1.4060

Abstract

Timber harvesting activities cannot be separated from the use of the equipment either mechanical and semi-mechanical. As long, the use of timber harvesting equipment is still less efficient in terms of quantity. Too much equipment means dissipation, but less equipment may decrease the achievement of timber production target. This study aimed to determine the optimal number of harvesting equipment in a natural production forest in order to achieve timber production target. The research was conducted in November 2015 in PT INHUTANI II, North Borneo. Primary data including equipment productivity, ownership cost, operation cost, the number of tools, production duration, and production target were collected. The data were tabulated and averaged. The results showed that there was an excess in the equipment used in skidding and haulling  which facilitated a faster work duration that were 42 and 44 months, respectively, whereas in loading and unloading activities showed the lack of two units tools which caused 15 months slower work duration; 2). The production cost in the skidding and haulling activities showed a high difference that is IDR 391,067.6/m3 and 592,316.8/m3 each.Kegiatan pemanenan kayu tidak terlepas dari penggunaan peralatan baik semi mekanis maupun mekanis. Penggunaan alat pemanenan kayu selama ini masih kurang efisien dari segi kuantitas. Jumlah alat yang banyak merupakan pemborosan dan jumlah yang sedikit memperlambat pencapaian rencana produksi kayu. Tujuan tulisan ini adalah untuk mengetahui  jumlah alat pemanenan kayu yang tepat pada satu pengusahaan hutan produksi alam sehingga rencana produksi kayu dapat tercapai. Penelitian dilaksanakan pada bulan Nopember 2015 di PT Inhutani II, Kalimantan Utara. Metode penelitian adalah mengumpulkan data primer berupa produktivitas alat, biaya pemilikan dan operasi alat, jumlah alat dan lama waktu produksi, rencana produksi. Data ditabulasikan dan dihitung rata-ratanya. Hasil penelitian menunjukkan bahwa : 1). Jumlah penggunaan peralatan pemanenan kayu di perusahaan ini pada penyaradan dan pengangkutan kayu menghasilkan selisih kelebihan alat sebanyak 8 unit dan pada muat bongkar menghasilkan selisih kekurangan alat sebanyak 2 unit.; 2). Jumlah alat penyaradan dan pengangkutan yang menghasilkan selisih lebih 8 unit dapat menyelesaikan pekerjaan lebih cepat yaitu masing-masing 42 dan 44 bulan; 3). Pada kegiatan muat bongkar menghasilkan selisih kekurangan alat 2 unit dapat menyelesaikan pekerjaan menjadi lama yaitu 15 bulan; dan 4). Biaya produksi pada penyaradan dan pengangkutan menghasilkan selisih  tinggi masing-masing yaitu Rp 391.067,6/m3 dan 592.316,8/m3.
PENINGKATAN PRODUKTIVITAS PEMANENAN KAYU DI HUTAN ALAM MELALUI KESESUAIAN JUMLAH PEKERJA Sona Suhartana; Yuniawati Yuniawati
Jurnal Hutan Tropis Vol 8, No 2 (2020): Jurnal Hutan Tropis Vol 8 No 2 edisi Juli 2020
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v8i2.9051

Abstract

Timber harvesting has a significent role for timber production. In natural forest, the timber production may be increased in line with the efectiveness of forest harvesting. The number of worker in harvesting many contribute to improve natural forest harvesting. Research conducted on forest concession in north borneo the primary and secondary date the direct information based in measurement of log volume and the member of working hours in every activity step of harvesting. While the secondary information derived from the quisionare delivered to field manager apply multiple regressing is used to analysa the relation amongs member of worker used, produktivity in harvesting and production cost. the research finding showed that 1) the number of worker in following activities of cutting, skidding handling and log delivering are about 2, 9, 3 and 9 consecutively; 2) the average of productivity and harvesting cost for the activities of cutting, skidding handling and log delivery are about 38.308 m3/hour, 15.070 m/hour, 67.5 m3/hour, 8.33 m3/hour, while the cost arising for the activities are Rp13.897,44/m3, Rp.48.883,45/m3, Rp. 11.765,6/m3  and Rp. 74.039/m ; 3) the more harvesting workers are not directly increase the logging productivity. it many need some trainings to improved their capabilities; 4) the regression model among the member of worker and productivity of harvesting and production cost is Y=15,346 + 0,326 X1  +3,685X2
RIL Skidding Techniques to Improve Productivity and Minimize Production Cost and Environmental Damage (A Case Study at PT Inhutani II Malinau) Sona Suhartana; Yuniawati
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (898.749 KB) | DOI: 10.18330/jwallacea.2019.vol8iss2pp113-123

Abstract

Conventional skidding techniques applied in natural forests often bring low productivity, high skidding cost, residual stands damage, and soil damage. RIL’s (Reduced Impact Logging) skidding techniques with better performance and more environmentally friendly should be introduced. This study aims to determine the effect of RIL’s skidding techniques on skidding productivity, skidding production-cost, and environmental damages that comprised residual stands and soil inside natural forests. This research was conducted in November-December 2015 at the site of natural production forest administered by PT. Inhutani II (Indonesia’s State Forest Company), in North Kalimantan. The acquired field data, which consisted of productivity, skidding cost, and damages of residual stands and of soil, were each processed into tabulation forms and then calculated for their averages. The results showed that applying RIL techniques could obtain: 1) The average skidding productivity reached 15.070 m3/hour; 2) The average skidding-production cost was IDR 48,883.45/m3; 3) The skidded-timber volume and skidding duration correlated with the average of skidding productivity, with coefficient of determination of 96.4%; 4) The average damage on residual stand due to skidding was 17.10% including canopy damage (12.5%), broken stems (37.5%), stem injury (12.5%), and leaning trees (37.5%), 5). Average soil depth and soil volume due to the topsoil displacement were 0.047 m and 3.726 m3/m; and 6) the use of matting strips can reduce the occurrence of soil damage during skidding.