Análisis de susceptibilidad y peligrosidad por deslizamientos de tierra, en las Microcuencas Yantzaza y Pitá, utilizando sistemas de información geográfica (sig)

This document presents the research developed in the western part of the city of Yantzaza, comprising two watersheds (Yantzaza and Pitá), same that supply water to the city of Yantzaza, where the level of susceptibility that exists for landslides is analyzed. For the analysis, four variables were held: slope, geology, precipitation and vegetation cover, which through a weighted overlay (Weighted Overlay, tool GIS), generated a map of provisional susceptibility, to which is overlay a corrector map (density of landslides), generated from a landslide inventory conducted in the area. Overlaying these two maps shows that 60.07% of the area under study presents conditions for landslides susceptibility, being medium to high levels. The crossing of these two maps gave a final susceptibility map, where we find areas that are threatened by such eventualities finding roads, water catchments, treatment plants and urban infrastructure. The most influential variable for the map of susceptibility of factors is vegetation cover with 44% of attribution; this is because grasslands covering 43.76% do not offer a deep rooted to the ground, being located here 67.88% of all inventoried landslides. And finally through inquest to the habitants of the area, these are not prepared to face such events in case of succession.

• Автор: Becerra Merino, Ariel Fernando (author)
• Формат: bachelorThesis
• Мова: spa
• Опубліковано: 2016
• Предмети: INGENIERIA en MANEJO Y CONSERVACION DEL MEDIO AMBIENTE; ANALISIS DE SUSCEPTIBILIDAD; PELIGROSIDAD POR DESLIZAMIENTOS
• Онлайн доступ: http://dspace.unl.edu.ec/jspui/handle/123456789/14016