Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Computation of Optimum Synthetic Road Density for Main and Spur Forest Roads

간선임도와 작업임도를 고려한 복합임도망의 적정밀도 산정

  • Kweon, Hyeong-keun (Forest Practice Research Center, National Institute of Forest Science) ;
  • Lee, Joon-woo (Department of Forest Environment & Resources, Chungnam National University) ;
  • Rhee, Hakjun (Department of Forest Environment & Resources, Chungnam National University) ;
  • Ji, Byeng-yun (Forest Practice Research Center, National Institute of Forest Science) ;
  • Jung, Do-hyun (Forest Practice Research Center, National Institute of Forest Science)
  • 권형근 (국립산림과학원 산림생산기술연구소) ;
  • 이준우 (충남대학교 산림환경자원학과) ;
  • 이학준 (충남대학교 산림환경자원학과) ;
  • 지병윤 (국립산림과학원 산림생산기술연구소) ;
  • 정도현 (국립산림과학원 산림생산기술연구소)
  • Received : 2015.10.05
  • Accepted : 2015.11.07
  • Published : 2016.03.31
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Abstract

This study was conducted to provide the basic policy information for establishing efficient forest-road networks. Synthetic forest-road networks that consist of main and spur roads and forest-road networks with only main road (hereafter called "main-road network") were planned for the five forest-road experimental districts of Korea Forest Service in this study. Road density of the synthetic forest-road networks was calculated and compared with the road density of the main-road networks. The results showed that the optimum road density of the synthetic forest-road networks was 10.1~15.9 m/ha, and the road density of the main-road networks was 8.4~12.4 m/ha. The construction cost of the synthetic forest-road networks was estimated about 1~8% lower than the main-road networks, while the road density was 20~30% greater than the main-road networks. As timber volume and hauling cost increased, the optimum road density of the synthetic forest-road networks increased, within which the road density of highstandard main road rapidly increased. On the other hand, the spur road density increased with slope gradient.

본 연구는 효율적인 임내도로망 구축을 위한 정책적 기초자료를 제공하고자 산림청 산하 5개소의 임도시설시범단지를 대상으로 복합임도망의 적정밀도를 산정하였다. 그 결과, 복합임도망의 적정밀도는 10.1~15.9 m/ha이었으며, 단일 규격의 간선임도망은 8.4~12.4 m/ha로 나타났다. 이를 기준으로 임도개설비용을 추정해보면, 단일규격의 간선임도망에 비해 약 1~8% 낮게 측정된 반면, 임도밀도는 20~30%가량 증가하였다. 또한, 대상지의 생산예정재적과 집재비용이 증가함에 따라 복합임도망의 적정밀도도 증가하였으며, 특히 고규격의 간선임도 밀도가 급격히 증가하였다. 한편, 경사가 급한 지역일수록 저규격의 작업임도 밀도가 상대적으로 증가하는 경향을 보였다.

Keywords

References

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