Análisis del riesgo por inundación en la localidad de Roblecito, cantón Urdaneta: propuesta de medidas de mitigación
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2018
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Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
El objetivo de este trabajo fue analizar el riesgo de inundación en la localidad de Roblecito y proponer medidas correctivas para disminuir los potenciales daños que se producirían, la primera etapa fue la determinación de la vulnerabilidad global para lo cual se estudiaron 7 tipos de vulnerabilidad: ambiental, física, económica, social, educativa, cultural y científica. En la segunda etapa se realizó un análisis a nivel de microcuenca mediante mapas de: elevación, pendiente, curvatura, TWI, SPI, número de curva y distancia al río, para determinar el grado de amenaza, posteriormente con el uso de sistemas de información geográfica se generaron los mapas de vulnerabilidad y amenaza para determinar el riesgo. Los resultados mostraron altos niveles de vulnerabilidad en gran parte del área de estudio mientras que la amenaza fue caracterizada como muy alta, en base a estos cálculos se determinó que la mayor parte del poblado se encuentra expuesto a un riesgo alto y muy alto por inundación por lo cual se proponen medidas de prevención, mitigación y respuesta.
The objective of this research was to analyze flood risk in the Roblecito Locality and propose to take action to reduce the potential damage that would occur. The first stage was to determinate Global Vulnerability, for which 7 types of vulnerability were studied: environmental, physical, economic, social, educational, cultural and scientific. In the second stage was carried out an analysis of the microwatershed using maps of: elevation, slope, curvature, TWI, SPI, curve number and distance to river to determine the hazard degree, subsequently with the use of geographic information systems vulnerability and hazard maps were generated to determine the risk. The results showed high levels of vulnerability largely of the study area while the hazard was characterized as very high, based on these calculations it showed that most the locality is exposed to a high and very high flood risk, due to these results, it has been taken action to prevent, mitigate and to respond.
The objective of this research was to analyze flood risk in the Roblecito Locality and propose to take action to reduce the potential damage that would occur. The first stage was to determinate Global Vulnerability, for which 7 types of vulnerability were studied: environmental, physical, economic, social, educational, cultural and scientific. In the second stage was carried out an analysis of the microwatershed using maps of: elevation, slope, curvature, TWI, SPI, curve number and distance to river to determine the hazard degree, subsequently with the use of geographic information systems vulnerability and hazard maps were generated to determine the risk. The results showed high levels of vulnerability largely of the study area while the hazard was characterized as very high, based on these calculations it showed that most the locality is exposed to a high and very high flood risk, due to these results, it has been taken action to prevent, mitigate and to respond.
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AMENAZA, VULNERABILIDAD, RIESGO, INUNDACIÓN