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从1991年到2020年在加利福尼亚州逃脱的规定的火灾的时间和空间模式分析
Shu Li1, Janine A Baijnath-Rodino1, Robert A York2
1Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA USA.
概括
规定的火灾降低了野火风险,但可以逃脱. 在加利福尼亚州,规定的大火最常见于5月,6月,9月和11月,特别是在树木覆盖率为20-60%的地区,风速是关键因素.
科学领域:
- 林业和野地火灾管理 森林和野地火灾管理
- 环境科学 环境科学
- 风险分析 风险分析
背景情况:
- 规定的火灾对于通过消耗燃料来减少野火风险至关重要.
- 虽然很少见,但规定的火灾存在重大风险,需要对历史数据进行分析.
- 了解燃料减少的好处和逃逸风险之间的平衡对于土地管理至关重要.
研究的目的:
- 为了调查在加利福尼亚州逃离规定的火灾的时空模式.
- 为资源管理者提供有关制定有效森林和燃料处理战略的见解.
- 为了确定高风险区域和规定的消防口的高风险时期.
主要方法:
- 从1991年到2020年,分析了加利福尼亚州的历史规定的火灾记录.
- 检查时空模式,包括季节性和环境因素.
- 识别与消防口径相关的植被类型和环境条件.
主要成果:
- 规范火灾最常发生在五月,六月,九月和十一月.
- 与灌木和草原相比,树木覆盖率在20-60%的地区显示出更高的逃生率.
- 风速被确定为影响规定的消防口径的主要环境因素.
结论:
- 这项研究提供了初步见解,用于识别高风险时期和预定的消防口径的区域.
- 了解逃跑模式和量化逃跑率对于有效的景观管理至关重要.
- 调查结果可以为策略提供信息,以减轻与规定的消防实施相关的风险.
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