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An Experimental Study on the Fire Behavior Characteristics of Pinus koraiensis Litter by Slope Conditions

  • Crisisonomy
  • Abbr : KRCEM
  • 2019, 15(6), pp.79-88
  • DOI : 10.14251/crisisonomy.2019.15.6.79
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general
  • Received : May 23, 2019
  • Accepted : June 25, 2019
  • Published : June 30, 2019

Lee Ye-eun 1 LI QIWEN 2 Kim Sung Yong 1 Song Eu 2 Im, SangJun ORD ID 2

1국립산림과학원
2서울대학교

Accredited

ABSTRACT

In this study, a laboratory burning experiment was conducted to experimentally examine the combustion characteristics of Pinus koraiensis litter with different slopes. Using several slope conditions, we observed how forest fire behavior changed after igniting the upper and lower sections of fuel bed. The results showed that the rate of fire spread on uphill slopes increased with slope gradient, but that on downhill decreased. The measures of fire intensities on uphill ranged from 21 to 37kW and those on downhill are 21 to 29kW, indicating that fire intensities on uphill slopes were larger than on downhill. As the slope increased, the flame length increased but the flame tilt angle decreased. This meant that the flame can accelerate heat transfer to unburned fuels and increase fire spread rate. The results of this study can be used as basic data to accurately predict fire behavior under different slope conditions.

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