An Evaluation of the Forest Service Hazardous Fuels Treatment Program—Are We Treating Enough to Promote Resiliency or Reduce Hazard?
An Evaluation of the Forest Service Hazardous Fuels Treatment Program—Are We Treating Enough to Promote Resiliency or Reduce Hazard?
复制标题
对林务局危险燃料处理计划的评估——我们的处理是否足以促进恢复能力或减少危险？
DOI：
10.5849/jof.16-067
复制
发表时间：
2017
影响因子：
2.3
通讯作者：
E. Reinhardt
中科院分区：
文献类型：
--
作者：
N. Vaillant;E. Reinhardt
国家凝聚力野火管理战略认识到野火是许多生态系统中必要的自然过程，并努力减少易发生火灾的景观与人之间的冲突。为了主动减轻潜在的负面野火影响，林务局燃料计划减少了荒地燃料。作为内部项目评估的一部分，我们评估了2008年至2012年国家森林系统（NFS）管理的土地上燃料处理和野火发生的程度。我们将燃料处理与历史干扰率相结合，以评估该项目对灭火造成的干扰损失的补偿程度，并与当前的野火危害相结合，以评估燃料处理是否战略性地针对高危险地区。每年，有45%的NFS土地被燃料处理和野火干扰，这表明NFS土地仍然处于“干扰赤字”状态。最高的野火危害等级的处理面积百分比最低，任何严重程度的野火和非典型的高严重程度野火的比例都最高，这表明燃料处理地点的替代分布可能会提高计划的有效性。
The National Cohesive Wildland Fire Management Strategy recognizes that wildfire is a necessary natural process in many ecosystems and strives to reduce conflicts between fire-prone landscapes and people. In an effort to mitigate potential negative wildfire impacts proactively, the Forest Service fuels program reduces wildland fuels. As part of an internal program assessment, we evaluated the extent of fuel treatments and wildfire occurrence within lands managed by the National Forest System (NFS) between 2008 and 2012. We intersected fuel treatments with historic disturbance rates to assess the extent to which the program compensates for the disturbance deficit caused by fire suppression and with current wildfire hazard to evaluate whether fuel treatments strategically target high hazard locations. Annually, 45% of NFS lands that would have historically burned were disturbed by fuel treatments and characteristic wildfire, indicating that NFS lands remain in a “disturbance deficit.” The highest wildfire hazard class had the lowest percentage of area treated and the highest proportion of both wildfire of any severity and uncharacteristically high-severity wildfire, suggesting that an alternative distribution of fuel treatment locations will probably improve program effectiveness.