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Sensitivity Analysis for Railway Development Areas Using Land Cover Map

토지피복지도를 활용한 철도개발지의 민감도 분석

  • Kim, Min-Kyeong (Department of Landscape Architecture, Graduate School, Sungkyunkwan University) ;
  • Kim, Dong-Yoeb (School of Civil, Architectural Engineering and Landscape Architecture, Sungkyunkwan University)
  • Received : 2016.10.05
  • Accepted : 2017.01.26
  • Published : 2017.02.28

Abstract

Recently, the 'Ecological Network Restoration Project at Chupungnyeong' has been placed; this project is located at the center of the Baekdu mountain spine, the core of the ecological network of the Korean Peninsula. In the process of industrialization since the early 1900s, this area has been under railroad and road construction; as such, wildlife movements have been interrupted and many cases of road-kill have been found. The investment in railroads has increased because railroads are an environmentally sound means of transportation. Single track railways have been converted to double track electric railways and track reforming projects are underway in order to speed up the current railway system. This study suggests to take land use as a standard for assessing the ecological weaknesses of the domestic geo-spaces that are to be affected by rapid extension of railway lines. The land cover map issued by the Ministry of Environment was overlapped with the Korean Railway Line Map for analysis. The results showed that five items were high in sensitivity: paddy fields, fields, deciduous forests, bare land, and inland waters. It seems to be necessary to set weights for highly sensitive land use types; also, specific evaluation criteria need to be reestablished.

최근 한반도 생태축의 근간을 이루는 백두대간의 중심에 위치한 추풍령 생태축 연결 복원사업이 추진되고 있으며, 이 지역은 일제 강점기에 경부선 철도건설과 함께 산업화 과정에서 도로와 철도 건설 등에 의해 야생동물의 이동이 단절되어 로드킬의 주요 원인이 되어 온 것으로 지적되었다. 그러나 친환경적 교통수단인 철도에 대한 투자 비중이 증가하는 추세를 보이고 있으며, 현재 기존 선로의 고속화를 위한 단선철도의 복선전철화 및 선형개량 사업 등 전국 철도망이 지속적으로 확대되고 있다. 이에 따라 본 연구는 급증하는 철도노선 연장에 따른 국토공간의 생태적 취약성을 평가하는 주요 평가기준으로 토지이용을 검토할 것을 제안하였고, 환경부에서 제공하는 토지피복지도를 활용하여 철도노선과 중첩분석을 수행하였다. 그 결과 논, 밭, 활엽수림, 나지, 내륙수 등 5개 항목에 민감도가 높은 것으로 나타났다. 이러한 항목들에는 민감도에 따른 가중치 설정이 필요한 것으로 생각되며 이를 바탕으로 구체적인 평가 기준을 마련할 필요가 있다.

Keywords

References

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