Risk Assessment of Meteorologic Disasters in Chishan basin

• Main Authors: Tai-li lee, 李太立
• Other Authors: Ray-Shyan Wu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/30677851340881125999

碩士 === 國立中央大學 === 土木工程學系 === 102 === 　　This research discusses meteorologic disasters in basin scale with system analysis approach. The proposed frame for basin risk assessment consists into three steps, namely disasters happened stage, disaster happening stage, and after disaster recover stage. Each stage has its own factors, and these factors can be utilized to indicate the relative status in the area of the risk assessment. 　　The relocation of Xiaolin village is chosen as a case study. The difference between the risk assessment value before village relocation and after village relocation is discussed. There are 630 people in the original Xiaolin village. Among them, about 90 families still stay in Xiaolin village, Jiaxian Dist., and 180 families relocated to either Shangping village or Yuemei village. In risk assessment of debris flow, the risk value of Shangping village and Yuemei village is 0.5598, i.e., moderate risk. However, in the case that the relocation people in Shangping village and Yuemei village come back to Xiaolin village, the risk value is 0.3981, i.e., moderate and low risk. 　　Incorporating resilience in the assessment shows the higher the exposure is, the higher the resilience gets. This is because the high population area always has enough resource encountering disaster. In the same time, the high population area has strong resilience ability.