Examining alternative fuel management strategies and the relative contribution of National Forest System land to wildfire risk to adjacent homes – A pilot assessment on the Sierra National Forest, California, USA
Examining alternative fuel management strategies and the relative contribution of National Forest System land to wildfire risk to adjacent homes – A pilot assessment on the Sierra National Forest, California, USA
复制标题
检查替代燃料管理策略以及国家森林系统土地对邻近房屋野火风险的相对贡献——对美国加利福尼亚州塞拉国家森林的试点评估
DOI：
10.1016/j.foreco.2015.11.038
复制
发表时间：
2016
影响因子：
3.7
通讯作者：
Julie W. Gilbertson
中科院分区：
文献类型：
--
作者：
Joe H. Scott;Matthew P. Thompson;Julie W. Gilbertson
确定野火对家庭构成的风险程度，风险在整个景观中的起源，以及谁能最好地减轻风险是有效共同管理野火风险的组成部分。开发评估和工具以帮助提供这些信息是美国林业局等联邦土地管理机构的高度优先事项，这些机构在减少危险燃料和其他缓解活动方面的资源有限。在这篇手稿中，我们调查了在USFS土地上燃料管理实践可以减少野火暴露给人类社区的程度。我们利用野火模拟和空间风险分析技术，研究了一系列假设的燃料处理方案，包括美国加利福尼亚州塞拉国家森林的景观。结果表明，处理USFS土地对减少景观中整体荒地城市界面（WUI）的暴露作用很小。到目前为止，专注于处理住宅附近可防御空间的处理方案在减少WUI暴露方面最为有效，包括从USFS土地传播的暴露。研究结果强调了潜在的权衡，并提出了关于联邦土地上燃料处理的其他土地管理目标可能比WUI保护更经济有效地实现的问题。特定于站点的基于风险的分析可以帮助阐明这些权衡和机会。
Determining the degree of risk that wildfires pose to homes, where across the landscape the risk originates, and who can best mitigate risk are integral elements of effective co-management of wildfire risk. Developing assessments and tools to help provide this information is a high priority for federal land management agencies such as the US Forest Service (USFS) that have limited resources to invest in hazardous fuel reduction and other mitigation activities. In this manuscript we investigate the degree to which fuel management practices on USFS land can reduce wildfire exposure to human communities. We leverage wildfire simulation with spatial risk analysis techniques and examine a range of hypothetical fuel treatment scenarios on a landscape encompassing the Sierra National Forest in California, USA. Results suggest that treating USFS land does little to reduce overall wildland urban interface (WUI) exposure across the landscape. A treatment scenario that focused on treating defensible space near homes was by far the most efficient at reducing WUI exposure, including exposure transmitted from USFS lands. Findings highlight potential tradeoffs and raise questions as to what other land management objectives fuel treatments on federal lands might be able to more cost-effectively achieve relative to WUI protection. Site-specific risk-based analyses can help elucidate these tradeoffs and opportunities.