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An Experimental Study on the Combustion Characteristics of Pinus densiflora Surface Layer by Slope Condition

  • Crisisonomy
  • Abbr : KRCEM
  • 2020, 16(6), pp.85-95
  • DOI : 10.14251/crisisonomy.2020.16.6.85
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general
  • Received : May 19, 2020
  • Accepted : June 22, 2020
  • Published : June 30, 2020

Lee Ye-eun 1 Jeong Ki Kim 1 Cheol An Bang 1 Song Hee Han 1 Chun Geun Kwon 1 Kim Sung Yong 1

1국립산림과학원

Accredited

ABSTRACT

In this study, a laboratory burning experiment was conducted to examine the combustion characteristics of Pinus densiflora surface fuel by different slope conditions such as 0°, 10°, 20°, 30° We observed the changes in forest fire behavior after fuel-bed ignition. According to the results of this study, the rate of fire spread increased as the slope angle increased; it was 14 times faster at slope angle of 30° than at 0° The fire intensity also increased as the slope angle increased, ranging from 246.73 kW/m to 2,602.96 kW/m. The flame height and tilt decreased but the length of flame increased, when the slope angle increased. The total combustion rate also decreased as the slope angle increased. Since the moisture content of canopy fuel was measured higher with the increase of the crown base height under the same slope conditions, the risk of forest fire ignition was found to be low. The findings can be used as a basic data for understanding of fire behavior by slope condition.

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