Determining factors of the hazard and vulnerability by coastal erosion in Colombia
DOI:
https://doi.org/10.23854/07199562.2021571esp.Ricaurte-Villota129Keywords:
Geohazards, risk management, resilience, traditional knowledgeAbstract
The coastline throughout the world and Colombia shows a retreat trend, with significant impacts on local communities and ecosystems. To address this problem, it was proposed to include it in Disaster Risk Management, a process-based approach that starts from knowledge to take corrective and prospective measures, being the hazard and vulnerability analysis the main input, and the evaluation of its components relevant for the proposal of alternatives. For this study, the dominance of each of the components of the hazard assessment (occurrence, magnitude and susceptibility) and vulnerability (exposed elements, fragility and lack of resilience) proposed by Coca-Domínguez and Ricaurte-Villota (2019) was analyzed using principal component analysis. The results show that the determining factor of the erosion hazard in the Pacific and the Insular zone is occurrence, while in the Caribbean it is susceptibility, which may be conditioned by the generalized trend of retreat of the Colombian coastline, while in the Caribbean it is explained by the characteristics of the coast. Vulnerability in the Caribbean and the Insular zone is determined by the lack of resilience, and in the Pacific by fragility, explained by the loss of traditional knowledge and ecosystems, moreover of differences in development and occupation between the Caribbean and the Colombian Pacific.
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