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Analysis of the Relationship between Forest Fire Damage Intensity and Forest Types Using Satellite Imagery – Focusing on the Uiseong Wildfire –

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2025, 34(6), pp.609~623
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : December 3, 2025
  • Accepted : December 10, 2025
  • Published : December 30, 2025

Sungwoon Jung 1 Guen-Bae Kim 1 Ahn, Hyang Sig 1 이관준 2 Kim Sun Jib 2 이율경 3

1국립환경과학원
2한세대학교
3참생태연구소

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ABSTRACT

This study analyzed the relationship between wildfire burn severity and vegetation types,stand age, and tree species in the Uiseong wildfire area that occurred in March 2025, using Sentinel-2 satellite imagery. Sentinel-2A/B MSI Level-2A surface reflectance data were used to calculate theNormalized Burn Ratio (NBR) and burn severity (differenced Normalized Burn Ratio; dNBR) frompre- and post-fire images. Wildfire burn severity was classified into four categories based on dNBRthresholds: unburned (<0.10), low (0.10–0.27), moderate (0.27–0.44), and high (>0.44). The averageburn severity value by vegetation type was highest in coniferous forests (0.287), followed by mixedforests (0.197), and lowest in broad-leaved forests (0.134). Damage was greater in coniferous forests,while less in broad-leaved forests. By stand age class, the average burn severity was higherin 4th~6thage classes, with a decreasing trend thereafter. By tree species, coniferous species such as Pinusdensiflora, P. thunbergii, and P. koraiensis suffered the most damage, while broadleaf trees such asQuercus mongolica, Q. variabilis, and Q. acutissima suffered less. The results of these studies showedthat restoring Korea’s forests to broad-leaved trees with higher fire resistance and inducing theirsuccession is more appropriate for forest fire management than coniferous forests.

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