碩士 / 國立屏東科技大學 / 森林系 / 90 / The aim of the study is to estimate the risk distribution of landslide for the reservoir effectively and to provide the references to the supervisor of the reservoir watershed. The method of this study is using photogrammetric and GIS technique to build the geological database of potential instability factors for landslide. We adopt the dangerous value method to calculate the weight for each factor that affects the landslide. Alongside using the techniques provided by GIS on the spatial overlapping method is to make and estimate the landslide susceptibility maps. First of all, we analyze the risk distribution of landslide of the four terms which is the year of 1977, 1985,1993 and 2000 by using the geology and terrain factors. The landslide susceptibility map in 2000 appears the best sensitive among 4 terms. Second, we estimate the risk distribution of landslide by joining the factors of landuse and the distance to roads. We found that it is helpful to increase the sensitivity of risk distribution of landslide. Furthermore, we put the landslide data of the four terms together to estimate the risk distribution of landslide, it shows that the performance of sensitivity is more elaborate. It approves that the landslide is continues, repeatedly or periodical.
| Identifer | oai:union.ndltd.org:TW/090NPUST360008 |
| Date | January 2002 |
| Creators | 許輔仁 |
| Contributors | , 陳朝圳, 鍾玉龍 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 105 |
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