Villagra Paula, Quintana Carolina
Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 509000, Chile.
Laboratorio de Paisaje y Resiliencia Urbana, Universidad Austral de Chile, Valdivia 509000, Chile.
Int J Environ Res Public Health. 2017 Sep 14;14(9):1063. doi: 10.3390/ijerph14091063.
This study aimed to further our understanding of a characteristic of Community Resilience known as Disaster Governance. Three attributes of Disaster Governance-redundancy, diversity, and overlap-were studied in four coastal towns in southern Chile that are at risk of tsunamis. Overall, we explored how different spatial structures of human settlements influence Disaster Governance. Using the Projective Mapping Technique, the distribution of emergency institutions (N = 32) and uses given to specific sites (e.g., for refuge, sanitary purposes and medical attention) were mapped. Content and GIS analyses (Directional Distribution and Kernel Density Index) were used to explore the dispersion and concentration of institutions and uses in each town. Disaster Governance was found to be highly influenced by decisions taken during regional, urban, and emergency planning. Governance is better in towns of higher order in the communal hierarchical structure. Most of the emergency institutions were found to be located in central and urban areas, which, in turn, assures more redundancy, overlap, and diversity in governance in the event of a tsunami. Lack of flexibility of emergency plans also limits governance in rural and indigenous areas. While the spatial relationships found in this study indicate that urban sectors have better Disaster Governance than rural and indigenous sectors, the influence of resource availability after tsunamis, the role and responsibility of different levels of governments, and the politics of disaster also play an important role in Disaster Governance for determining Community Resilience. These findings shed light on emergency planning and aspects of the Disaster Management cycle.
本研究旨在进一步加深我们对社区恢复力的一个特征——灾害治理的理解。在智利南部四个面临海啸风险的沿海城镇,对灾害治理的三个属性——冗余性、多样性和重叠性——进行了研究。总体而言,我们探讨了人类住区的不同空间结构如何影响灾害治理。使用投影映射技术,绘制了应急机构(N = 32)的分布以及特定地点的用途(例如避难、卫生用途和医疗护理)。采用内容分析和地理信息系统分析(方向分布和核密度指数)来探究各城镇中机构和用途的分散与集中情况。研究发现,灾害治理受到区域、城市和应急规划过程中所做决策的高度影响。在社区等级结构中较高层级的城镇,治理情况更好。多数应急机构位于中心和城市地区,这反过来确保了在发生海啸时治理具有更多的冗余性、重叠性和多样性。应急计划缺乏灵活性也限制了农村和原住民地区的治理。虽然本研究发现的空间关系表明城市地区比农村和原住民地区具有更好的灾害治理,但海啸后资源可用性的影响、不同层级政府的角色和责任以及灾害政治在决定社区恢复力的灾害治理中也发挥着重要作用。这些发现为应急规划和灾害管理周期的各个方面提供了启示。