| Summary: | 碩士 === 國立臺北大學 === 不動產與城鄉環境學系 === 97 === Taiwan has faced many threats from natural disasters, especially floods and debris flows. They cause more and more lives and properties suffered the harm and loss. Thus, it is an important issue for disaster management that how to decrease damage effectively. Vulnerability can be considered in specific conditions of environmental disasters, resulting in casualties and the possibility of damage to property. However, traditional researches neglected interactive between social characteristics and other factors which could influence the degree of losses. The purpose of this study is to framework the vulnerability model and assessment indices in Ta-Chia river basin, and the disasters focus on floods and debris flows. We apply Analytic Network Process (ANP) to deal with the interactive factors to evaluate weight of assessment indices. The results of this study depict the vulnerability map in Ta-Chia river basin to figure out where the potential loss will be serious.
Through the analysis, Heping (和平鄉), Dongshih (東勢鎮), Shinshe (新社鄉), Shrgang (石岡鄉) are high vulnerability villages where allocate on upper and middle of Ta-Chia river basin. In addition, Dajia (大甲鎮), Daan (大安鄉), Ching-Shui (清水鎮) and Waipu (外埔鄉) are low vulnerability villages where allocate on lower of river basin.
In this article, first, it is a dilemma issue to develop on high vulnerability areas. We must consider the implementation of prioritues carefully in related policies. Second, if low vulnerability towns keep current status stably that should be moderate develop. Third, although the vulnerability pattern of social-ecogical system is random distribution, we could give different strategies from different aspects. Finally, it is limited if we regulate part of urban development lands to reduce the degree of vulnerability, because the areas are much less than order form of lands.
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