Evaluation of the physical vulnerability of the infrastructure using the concept of emergy.

The data of a methodology carried out for the Combeima river basin in Colombia (South America) is presented, in which the effect of the evolution of land use on the flood regime and physical vulnerability in the period 1976- 2017 through hydrological and hydraulic modeling and the implementation of a method for the evaluation of vulnerability to floods. This allowed confirming reports related to the statement that changes in land use produce effects on the behavior of direct runoff in watersheds and its relationship with the vulnerability of structures near surface watercourses. The research work focused on: i) evaluating the effect of changes in land use on physical vulnerability in the flood regime; ii) propose the evaluation of physical vulnerability based on the variation of soil properties through the concept of emergy. The results indicate that the incorporation of variables related to soil and the hydraulic properties of rivers improve the evaluation of vulnerability in land use change scenarios, so this approach could be useful for planners in decision-making processes.

本报告呈现了在南美洲哥伦比亚的Combeima河流域进行的一项方法论数据，该研究通过水文和水利模型，对1976年至2017年期间土地利用演变对洪水规律及物理脆弱性的影响进行了探讨，并实施了一种洪水脆弱性评估方法。研究证实了有关土地利用变化产生效应，影响流域直接径流行为及其与地表水道附近结构脆弱性关系的报告。研究工作主要聚焦于：i)评估土地利用变化对洪水规律中物理脆弱性的影响；ii)基于涌现能的概念，提出基于土壤性质变化的物理脆弱性评估方法。研究结果指出，将土壤及河流水力性质相关变量纳入评估，能够提升土地利用变化场景中脆弱性的评价，因此，此方法对于规划者在决策过程中具有实用价值。