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The Effects of Thinning Slash on Wildfire Fuel Type

  • Crisisonomy
  • Abbr : KRCEM
  • 2020, 16(10), pp.61-69
  • DOI : 10.14251/crisisonomy.2020.16.10.61
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general
  • Received : October 5, 2020
  • Accepted : October 21, 2020
  • Published : October 31, 2020

Lee Ye-eun 1 Sun Joo Lee 1 Chun Geun Kwon 1 Kyung Won Seo 1 Cheol An Bang 1 Kim Sung Yong 1

1국립산림과학원

Accredited

ABSTRACT

Thinning is known as an important method not only for promoting healthy forest but for preventing crown fire transition and spread. However, if you do not collect thinning slash, it may serve as a factor in the spread of forest fires. In this study, we attempted to observe the effects of thinning slash on fire behavior. The results of this study showed that total surface-fuel loads including thinning slash were estimated approximately 38.92 ton/ha in the study area, which was about 2.7 times more than that of Ⅳ Pinus densiflora stand in South Korea. Surface fire intensity (SFI) was measured at 8,956.33 kW/m with thinning slash, but 4,454.95 kW/m without thinning slash, which indicates a significant effect of thinning slash on SFI. The estimation of passive crown fire intensity showed that the fire spread rate was calculated as 0.4 km/h in Gunwi but calculated as 0.06 km/h in the study area. The results from this study could serve as a good example to explain the effects of thinning slash on wildfire fuel type.

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