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Modeling wildfire mitigation and ecological restoration in the wildland-urban interface: A study of the montane zone of the Colorado Front Range.

机译:在野外与城市之间的界面中模拟野火缓解和生态恢复:对科罗拉多前山脉山地带的研究。

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In response to catastrophic wildfires, several wide-reaching forest management policies have been enacted in recent years, including the National Fire Plan and the Healthy Forest Restoration Act of 2003. Such policies aim both to reduce the threat of wildfire (here called wildfire mitigation) and to restore historic forest structure (here called ecological restoration). A key premise underlying these policies is that fire suppression in the 20th century has made forests denser than they were historically. Thus, forest thinning is viewed as simultaneously achieving the goals of wildfire mitigation and ecological restoration.; For the montane zone of Boulder County, Colorado, this study presents several new GIS-based models that help assess where and under what circumstances mechanical thinning could achieve both goals and where these goals are contradictory. These models are particularly useful for assessing the feasibility of management goals in landscapes that are spatially heterogeneous in terms of both natural factors (e.g. fire hazard, forest conditions) and social factors (e.g. exurban development, land ownership). It is found that, contrary to current assumptions, the goals of wildfire mitigation and ecological restoration converge in only a small part of the landscape. Furthermore, current forest management practices---such as thinning dense stands on Federal Lands near exurban development---may be contrary to achieving both wildfire mitigation and ecological restoration in the study area. Spatial models of human-environment relationships such as the ones developed in this study help explore the variability within complex systems, which is essential for informed policymaking.
机译:为了应对灾难性的野火,近年来制定了几项影响深远的森林管理政策,包括《国家火灾计划》和​​2003年的《健康森林恢复法案》。此类政策旨在减少野火的威胁(此处称为缓解野火)并恢复历史悠久的森林结构(此处称为生态恢复)。这些政策的主要前提是,20世纪的灭火使森林比历史上更茂密。因此,森林砍伐被认为是同时实现了减轻野火和恢复生态的目标。对于科罗拉多州博尔德县的山地带,本研究提出了几种基于GIS的新模型,这些模型有助于评估机械薄化可以在什么地方,什么情况下实现两个目标以及这些目标相互矛盾的地方。这些模型对于评估在自然因素(例如火灾隐患,森林状况)和社会因素(例如郊区开发,土地所有权)方面在空间上异质的景观中管理目标的可行性特别有用。结果发现,与当前的假设相反,减轻野火和恢复生态的目标仅集中在景观的一小部分。此外,当前的森林管理实践-例如在郊区开发附近的联邦土地上疏密茂密的林分-可能与在研究区域实现野火缓解和生态恢复既背道而驰。人与环境关系的空间模型(如本研究开发的模型)有助于探索复杂系统中的可变性,这对于明智的决策至关重要。

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