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Yahya Fakuara
Pusat Penelitian dan Pengembangan Hasil Hutan
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Journal : Jurnal Penelitian Hasil Hutan

 1 
PENGARUH PENYARADAN KAYU DENGAN TRAKTOR RANTAI KELABANG TERHADAP KERUSAKAN TEGAKAN TINGGAL Maman Mansyur Idris; Yahya Fakuara; Gunarwan Suratmo; Rahardjo S Suparto
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 | Full PDF (2934.038 KB) | DOI: 10.20886/jphh.1988.5.7.404-409

Abstract

The  study   of  the  effect  of  log skidding  on  the  damage  of  residual stand  was carried out in one  logging company in West Kalimantan   in  1986.   The  meaning  of  residual stand  in the  study  are trees with diameter  20 cm and up.  The result of the study   shows  that  the  average damage  of  residual stand  is 18% per  hectare,  not  included  the damage  caused  by felling i.e.  15%  per  hectare.  According   lo  Indonesian   Selective  Cutting  System,  the  residual stand  is good  enough  to  fulfill  the sustained  yield  condition, that  is keep  at  least 25  core  trees  to  be left  per hectare. The role of skidded   trees number and stand  density  was significant  effect   on  the  residual stand  damage.
PENGARUH PENYARADAN KAYU DENGAN TRAKTOR RANTAI KELABANG TERHADAP PENGGESERAN DAN PEMADATAN TANAH HUTAN Maman Mansyur Idris; Yahya Fakuara; Gunarwan Suratmo; Rahardjo S Suparto
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 | Full PDF (3287.14 KB) | DOI: 10.20886/jphh.1988.5.7.394-399

Abstract

The study  of  the  effect of  log skidding  by crawler   tractors  on  forest soil displacement  and compaction wall carried out in one logging company in West Kalimantan in 1986.                                                                                                    The  results  of  the study  are as the following  :The  average  volume   of  soil  displacement was 0.06   cu.m/m  of  skid  road,  it  i6 equal  to  0.061 ton/sq.m. This level of soil displacement iis higher  than  the  soil loss tolerance of  0.0002   ton/sq.m.Soil  compaction as indicated  by the average soil bulk  density is  0.16 g/cu.cm.  At this level of compaction, the porosity is 56%  (far  higher  than  10%  minimum   porosity), which  means  that  the growth  of  vegetation   will be still  favourable.The role of  soil  water  content and  slope on forest soil displacement was positively   significant. The  role of skidding intensity on forest  soil  compaction   was positively   significant   and  the  role  of soil  water  content   and slope  on forest soil  compaction was negatively  significant.
Co-Authors Gunarwan Suratmo Maman Mansyur Idris Rahardjo S Suparto