Ir. Siman Suwadji, MP Primary Author Ir. Sushardi, S.Kh, MP (P) Primary Author Joap Parulian Marbun Primary Author mixed material bibliography yogyakarta INSTIPER 2021 monographic

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Extraction is the process of moving logs which have been felled to Tpn. One of the factors which affect the productivity of wood extraction using skidder is the distance and topography classification. There are four topography classification which are flat (0-8%), moderate (8-15%) and steep (15-25%). On the land of PT. Riau Andalan Pulp And Paper does not only have flat topographic classes, but there are also moderate and steep topographic classes. The purpose of this research is to know the effect of distance and land topography on the productivity and to know effectiveness of the best land topography. The analysis method which used in this research is randomized block design (RAK). According to the research results obtained data that interaction between distance and topography has a significant effect on extraction productivity. The most optimal interaction is at 0-50 m distance with flat topography with average productivity of 84,93 m3/hour. The highest productivity is at 0 – 50 m distance with average productivity of 67,45 m3/hour. The highest productivity is in flat topography with average productivity of 55,13 m3/hour. SKRIPSI KEHUTANAN 2021 KH-APRIL-2021 WANA TROPIKA SHTI 19038 Jarak Ekstraksi, Topografi Lahan, Produktivitas, S NONE Institutional Repository Institut Pertanian STIPER Yogyakarta APR.2021.UP.KH.036 My Library BAB I LEMBAR PENGESAHAN COVER s/d ABSTRAK BEBAS PUSTAKA BAB VI DAFTAR PUSTAKA s/d LAMPIRAN PUBLIKASI PUBLIKASI PUBLIKASI RINGKASAN 17013 2021-03-31 12:35:36 2021-08-05 08:58:17 machine generated