| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Large scale landslides continuously supply sediment after their initial failure. In this study, we investigated timing and volume of sediment supply by field surveys and GIS (Geographic Information System) analyses. Sediment supply from hillslopes were composed of multiple sediment supply processes, including chronic weathering of the bedrock and episodic slope failure expanding the landslide. Spatial activities of these processes were highly affected by the geological structure in the landslide. We successfully explained sediment supply processes by "parallel retreat model" and "slope stability model for the slopes with multi-layer geoligical structure."
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