| Summary: | 碩士 === 國立高雄師範大學 === 地理學系 === 100 === In this study uses the Simprecise Method, for typhoon Morakot in 2009 hit the Chiahsien Namasia region in Nan-Tzy-hsian basin, the collapse potential assessment, through the draw of the land unit map, the study area was cut into the slope of the small size and homogeneousunit, and the geological map of the survey with the Chinese Petroleum Corporation, 1982 first edition photo base map overlay, classified according to their geological and topographical differences in the nature of the slope unit geological, topographical ordinal, in order to infer the various slope units may be potentialcollapse hazard.
Second, ortho aerial photography taken within six months after the 2009 Typhoon Morakot, and geological maps overlay, manual interpretation of landslides, drawing Morakot disaster Nan-Tzy-hsian basin to the actual occurrence of landslides range, landslidespecies, the collapse area, in order to infer the location prone to landslides; prone to landslides, geological zones and geological inference prone to collapse, the terrain features. Finally, the interpretation of the results of artificial sentenced Jane is indeed method to predict the potential collapse of the overlay to check for potential collapse predict.
Through the above process, the following results: first, the Nan-Tzy-hsian basin of Chiahsien and Namasia District basin the formation of collapsed hot zone a total of 498 slope units, plus valley type most prone to collapse type is very steep. Second, artificial interpretation Nan-Tzy-hsian basin in the occurrence of collapse hazard sentenced to release a total of 2,075 landslides （landslides 1,834, translational Slide115, debris flow 117）total area of about 3,338.4 hectares. Third, the most vulnerable to the occurrence of landslides location of the tributary side, for a total of 851. Fourth, Jane indeed method in the study area to predict potential landslide, predict the probability of success of 88.5%.
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