主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

Fire Science and Technology ›› 2022, Vol. 41 ›› Issue (11): 1563-1567.

Previous Articles     Next Articles

Study on effect of fuel clearing on risk of Xichang forest fire

Gao Yunji, Luo Yueyang, Yang Xiaolong, Zhang Yuchun   

  1. (Department of Fire Engineering, Southwest Jiaotong University, Sichuan Chengdu 611756 , China)
  • Online:2022-11-15 Published:2022-11-15

Abstract: To study the impact of two common kinds of forest fuel clearing (evergreen broad-leaved shrub and coniferous forest litter) on forest fire hazard of Xichang, Liangshan Prefecture, FlamMap was used to simulate four kinds of eliminating methods and untreated conditions. Meanwhile, the changes of burning probability (BP) and mean flame length (MFL) before and after cleaning were compared and analyzed. The simulation results indicated that the strategy of clearing litter under evergreen broad-leaved shrub and coniferous forest can effectively break the horizontal continuity of fuel, which can reduce the BP and MFL of forest fire. The higher the ambient wind speed, the more obvious the treatment effect is. Moreover, the effect of shrub clearing strategy is better than that of coniferous forest litter. In the area where the flammable combustibles cluster together with high spreading speed, BP is evidently larger than that in the surrounding environment, and the clearing effect is manifestly better. Therefore, when deploying a fuel clearing plan, attention should be paid to the reduction of weeds and shrubs, especially in areas where flammable fuel clusters, horizontal continuity is large, and some areas are prone to ignition.

Key words: forest fire, fuel clearing, fuel treatment