Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Comparison of vegetation recovery according to the forest restoration technique using the satellite imagery: focus on the Goseong (1996) and East Coast (2000) forest fire

  • Yeongin Hwang (Department of Forest Resources, Chungnam National University) ;
  • Hyeongkeun Kweon (Department of Forestry, Korea National University of Agriculture and Fisheries) ;
  • Wonseok Kang (Forest Fire Division, National Institute of Forest Science) ;
  • Joon-Woo Lee (Department of Environment and Forest Resources, Chungnam National University) ;
  • Semyung Kwon (Division of Administration, Forest Restoration Center, Korea Association of Forest Enviro-Conservation Technology) ;
  • Yugyeong Jung (Forest Fire Division, National Institute of Forest Science) ;
  • Jeonghyeon Bae (Forest Fire Division, National Institute of Forest Science) ;
  • Kyeongcheol Lee (Department of Forestry, Korea National University of Agriculture and Fisheries) ;
  • Yoonjin Sim (Department of Landscape Architecture, Korea National University of Agriculture and Fisheries)
  • Received : 2023.06.21
  • Accepted : 2023.08.30
  • Published : 2023.09.01
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Abstract

This study was conducted to compare the level of vegetation recovery based on the forest restoration techniques (natural restoration and artificial restoration) determined using the satellite imagery that targeted forest fire damaged areas in Goseong-gun, Gangwon-do. The study site included the area affected by the Goseong forest fire (1996) and the East Coast forest fire (2000). We conducted a time-series analysis of satellite imagery on the natural restoration sites (19 sites) and artificial restoration sites (12 sites) that were created after the forest fire in 1996. In the analysis of satellite imagery, the difference normalized burn ratio (dNBR) and normalized difference vegetation index (NDVI) were calculated to compare the level of vegetation recovery between the two groups. We discovered that vegetation was restored at all of the study sites (31 locations). The satellite image-based analysis showed that the artificial restoration sites were relatively better than the natural restoration sites, but there was no statistically significant difference between the two groups (p > 0.05). Therefore, it is necessary to select a restoration technique that can achieve the goal of forest restoration, taking the topography and environment of the target site into account. We also believe that in the future, accurate diagnosis and analysis of the vegetation will be necessary through a field survey of the forest fire-damaged sites.

Keywords

Acknowledgement

본 연구는 국립산림과학원의 '산불피해지 복원 프로세스 및 내화숲 기능증진 연구'(과제번호 FE0100-2022-02-2023)의 지원으로 수행되었습니다.

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