Operationalising homeowner wildfire risk mitigation in fire-prone areas
Operationalising homeowner wildfire risk mitigation in fire-prone areas
复制标题
在火灾多发地区实施房主野火风险缓解
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
R. Wilson
中科院分区：
文献类型：
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作者：
H. Walpole;Sarah McCaffrey;Claire Rapp;R. Wilson
大量研究探讨了生活在火灾多发地区的人们降低野火风险的动机（即从事减少脆弱性和野火对个人财产影响的活动）。然而，由于研究人员衡量和分析野火风险缓解的方法多种多样，因此从这项研究中得出总体结论很困难。尽管存在衡量风险缓解活动的建议，但迄今为止还没有研究将这些建议建立在对不同操作如何影响房主准备情况的后续解释的检查之上。我们通过研究人口统计和背景因素对准备工作的影响在不同的计算已完成植被管理量的方法中有何不同来解决这一差距。我们还研究了不同的统计方法如何影响结果。我们发现，将植被管理衡量为已完成活动的总和是有问题的，并且可能会混淆重要的关系。例如，年龄与完成的适用活动的比例呈正相关，但与总数无关。我们建议评估哪些项目适用于受访者并构建比例衡量标准而不是总和。我们还建议，考虑到维护植被的需要，研究人员使用非二元衡量标准，让受访者表明他们为每项活动承担了多少工作。
A significant amount of research has examined what motivates people living in fire-prone areas to mitigate their wildfire risk (i.e. engage in activities that reduce vulnerability and the effects of a wildfire on an individual’s property). However, drawing overarching conclusions from this research is difficult because of the myriad of ways researchers have measured and analysed wildfire risk mitigation. Although recommendations exist for measuring risk-mitigation activities, no research to date has based these recommendations on an examination of how different operationalisations influence subsequent interpretations of homeowner preparedness. We addressed this gap by examining how the effects of demographics and contextual factors on preparedness differ across different ways of counting the amount of vegetation management completed. We also examined how different statistical approaches influence the results. We found that measuring vegetation management as the sum of activities completed is problematic and can obfuscate important relationships. For example, age is positively related to the proportion of applicable activities completed, but not the total number. We recommend assessing which items are applicable to respondents and constructing proportional measures rather than sums. We also recommend that, given the need for maintenance of vegetation, researchers use non-binary measures that allow respondents to indicate how much work they have undertaken towards each activity.