Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Planning and Evaluation of Synthetic Forest Road Network using GIS

GIS를 이용한 복합임도망의 계획 및 평가

  • Kweon, Hyeongkeun (Department of Environment and Forest Resources, Chungnam National University) ;
  • Seo, Jung Il (Department of Forest Resource, Kongju National University) ;
  • Lee, Joon-Woo (Department of Environment and Forest Resources, Chungnam National University)
  • 권형근 (충남대학교 산림환경자원학과) ;
  • 서정일 (공주대학교 산림자원학과) ;
  • 이준우 (충남대학교 산림환경자원학과)
  • Received : 2018.12.12
  • Accepted : 2019.01.31
  • Published : 2019.03.31
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Abstract

This study was conducted to evaluate the effect of the synthetic forest road network by calculating the optimal road density and layout of the forest road network in order to construct the systematic road network in the forested area. For this, five comparative routes were additionally planed and compared through evaluation indicators. As a result, the optimum road density of the study site was estimated to be 18.4 m/ha, and the synthetic forest road network was the best in the four indicators such as average skidding distance, standard deviation of skidding distance, development index, and circuity factor. In addition, the synthetic forest road network was comparable to the main road network by about 4 %p in the timber volume available and potential area size for logging, but the construction cost of the road was about 20 %p lower. It showed a synthetic forest road network was better in terms of economy.

이 연구는 체계적인 임내도로망의 구축을 위해 고규격 및 저규격의 임도를 포함하는 적정임도밀도를 산정한 후, 이를 토대로 구축한 복합임도망의 배치 효과를 5개의 비교임도망과 비교 평가하였다. 그 결과, 연구대상지의 적정임도밀도는 약 18.4 m/ha로 산정되었으며, 평균집재거리, 집재거리표준편차, 개발지수, 임도 우회계수 등의 지표에서 복합임도망이 가장 양호한 것으로 나타났다. 또한, 집재가능재적량과 집재가능면적에서 복합임도망은 간선임도망에 비해 약 4 %p 수준으로 비슷하게 나타났지만, 임도개설비용은 약 20 %p가 낮게 나타나 경제적 측면에서도 양호한 것으로 나타났다.

Keywords

HOMHBJ_2019_v108n1_59_f0001.png 이미지

Figure 1. Location of the study area.

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Figure 2. Layout of synthetic forest road network (A) for the field site.

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Figure 3. The results of buffering analysis for area and timber volume available for logging, with respect to logging distance from the planning forest road network (A) to (F) within the field site.

Table 1. Coefficient values used for calculating density of synthetic forest road network.

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Table 2. Types of forest road network postulated in this study.

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Table 3. The results of synthetic forest road density.

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Table 4. The results of evaluate factors according to the layout of forest road network (A)~(F).

HOMHBJ_2019_v108n1_59_t0004.png 이미지

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