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遇到规定的火:在CONUS中描述规定的火和野火的交叉点
James L Beidler1, Kirk R Baker1, George Pouliot1
1Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27709, United States.
概括
规定的火灾有助于管理野火风险,但在美国,只有6.2%的受治疗地区在2003-2023年期间遇到了随后的野火. 西部森林的遭遇率高于东部森林.
科学领域:
- 生态生态学 生态生态学
- 林业林业 林业 林业 林业
- 环境管理环境管理
背景情况:
- 处方火是美国减少野火风险和恢复生态系统的关键燃料处理.
- 灾难性野火的增加正在推动更广泛地采用规定的消防做法.
- 有效地减少野火风险需要处理过的区域随后遇到野火.
研究的目的:
- 为了量化规定的火灾处理区和随后的美国各地野火之间的遭遇率.
- 分析遭遇率如何因地区,时间间隔,处理区域和先前的火灾历史而有所不同.
主要方法:
- 从2003年到2022年使用了规定的火灾和野火的地理空间解析数据集.
- 美国森林服务局在美国境内 (CONUS) 的土地上计算的遭遇率.
- 总结了各种时间和空间因素的遭遇率.
主要成果:
- 6.2%的规定的火灾处理面积 (2003-2022) 在CONUS森林管理局的土地上遭遇了随后的野火 (2004-2023).
- 与美国东部森林相比,美国西部森林的遭遇率更高.
- 遭遇率随着东南地区的治疗区域的增加,以及在CONUS中处方和后续野火之间的时间间隔较长而增加.
结论:
- 这些发现突出了规定的火灾与野火相互作用的区域差异.
- 结果可以为优化规定的火灾使用策略提供信息,以最大限度地减少野火风险.
- 了解遭遇率对于评估规定的火灾在减轻野火影响方面的有效性至关重要.
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