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坡面型與溪流型土石流量化區分準則及地形特性-以高屏溪為例

Distinguish Criterion and Geomorphology Characteristics Analysis on Channelized and Hillslope Debris Flow

摘要


臺灣位於歐亞板塊與菲律賓板塊交界,板塊運動造就發達的斷層及褶皺等地質構造,地質破碎加上劇烈天氣,土石流災害頻傳。土石流依其地形可分為坡面型與溪流型,近年來已有許多坡面型土石流之相關研究,但雖有地形及產狀特徵等描述,卻較少定量分析與區分土石流類型之準則,無法將其與溪流型土石流明確區分。本研究希冀能建立溪流型土石流與坡面型土石流之區分準則,並探討兩者地形特性之差異,作為爾後坡面型土石流之相關研究參考。

並列摘要


Taiwan is located at the boundary of Eurasian Plate and Philippine Sea Plate, fractured geological fragmentation caused by more geologic structures the frequent earthquakes induced many debris flow hazards. Debris flow torrent could be classified into two types, channelized and hillslope debris flow. Many studies have been focused on hillslope debris flows in recent years, many descriptions of the geomorphology characteristics were discussed, although the quantitative analysis and the distinguish criterion on two types of debris flow were lacked. This study attempts to establish the criteria for the interpretation of channelized and hillslope debris flows, and to explore the differences of the two in the topographic characteristics.

參考文獻


王振宇 (2012),「坡面型土石流判釋準則與地形演化作用」,國立屏東科技大學水土保持系碩士論文。
王隆昌 (2005),「溪頭地區坡地型土石流地形及發生特性研究」,國立成功大學地球科學研究所碩士論文。
中央地質調查所 (2009),「高屏溪流域地質圖」,1:50,000。
日本國土技術政策總和研究所 (2007),「砂防基本計画策定指針 ( 土石流·流木対策編 ) 解説」。
呂岡侃 (2002),「南投縣九九峰土石流發生區之地形特徵」,國立台灣大學地理環境資源所碩士論文。

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