A verification study of a spur road improvement project on harvesting operational efficiency and total cost reduction.

DOI JASI Web Site Open Access

Bibliographic Information

Other Title
  • 作業道の改良による伐出作業システムの生産性の向上と経費削減効果の検証
  • サギョウドウ ノ カイリョウ ニ ヨル バツシュツサギョウ システム ノ セイサンセイ ノ コウジョウ ト ケイヒ サクゲン コウカ ノ ケンショウ

Search this article

Abstract

<p>In Kurotaki area, Nankoku city, Kochi Prefecture, a forest owners’ association of the area consolidated the fragmented individually managed stands, improved existing narrow spur roads and made them wide enough for 10 t trucks, and introduced more efficient harvesting systems such as swing yarders and European tower yarder. Cost for the improvement and construction of narrow spur roads was lower compared to that for construction of new wide spur roads. The operational efficiency before the improvement of roads was 0.45 m3 per person-hour for the harvesting method of winching and short transportation, whereas that after the improvement was 0.98 m3 per person-hour for the harvesting method of the tower yarder. The total cost involved in the harvesting operation and the spur road improvement was reduced from 13,817 yen per m3 to 8,895 yen per m3 after the improvement, based on the application of the result of operational efficiency obtained from the field study. However, the tower yarder system would require larger tree volume for its full performance and low logging cost because smaller tree volume does not result in lower cost.</p>

Journal

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top