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Vol.54,
No.1,
PP.1-88
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| 1 |  | Spatiotemporal Characteristics of Landslide Evolution in the Tsengwen Reservoir Watershed from the Assessment of Landslide Activity Through Spatiotemporal Hotspot Analysis 54(1):38-47Yu-Ci Chen Chun-Hung Wu** Corresponding Author. E-mail :  chhuwu@fcu.edu.tw Show preview |  PDF( 30.68MB ) | | Spatiotemporal Characteristics of Landslide Evolution in the Tsengwen Reservoir Watershed from the Assessment of Landslide Activity Through Spatiotemporal Hotspot Analysis | 
Close | | Yu-Ci Chen Chun-Hung Wu* |
AbstractThe study explores the recovery from landslides induced by Typhoon Morakot in 2009 in the Tsengwen reservoir watershed. The landslide recovery ratios in the following 2, 5, and 8 years after 2009 reached 80%,83%, and 87%, respectively. The active landslide was concentrated in the area with an elevation of 1750-2000 m, a slope of 35°-55°, and located within 500 m of the rivers. The landslide spatiotemporal hotspots were distributed upstream of the Tsengwen reservoir watershed, particularly in the Chankuchuan, Daban, Daderan, Siding, and Shanmei subwatersheds. The large landslide cases and the involved gullies and rivers occurred over the cluster area of landslide spatiotemporal hotspots and the distributed area of nonrecovered or new landslides.
Key Words: landslide evolution, landslide recovery, landslide spatiotemporal hotspot | Department of Water Engineering and Resources Conservation, Feng Chia University, Taichung 410, Taiwan, R.O.C. * Corresponding Author. E-mail : chhuwu@fcu.edu.tw | Received: 2022/04/13
Revised: 2022/07/26
Accepted: 2022/08/02
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| | | 2 | | A Preliminary Study on Rainfall Infiltration Leading to Rock Slope Failure and Pore Pressure Variation through Physical Models Simulated using 3DEC | | | 3 | | Rainfall Threshold and Signal Interpretation for Gravelly Debris Flows | | | 4 | | Theoretical and Experimental Analyses of Flow Instability in High Gradient Channels | | | 5 | | Spatiotemporal Characteristics of Landslide Evolution in the Tsengwen Reservoir Watershed from the Assessment of Landslide Activity Through Spatiotemporal Hotspot Analysis 54(1):38-47Yu-Ci Chen Chun-Hung Wu** Corresponding Author. E-mail : chhuwu@fcu.edu.tw Show preview | PDF( 30.68MB ) | | Spatiotemporal Characteristics of Landslide Evolution in the Tsengwen Reservoir Watershed from the Assessment of Landslide Activity Through Spatiotemporal Hotspot Analysis |
Close | | Yu-Ci Chen Chun-Hung Wu* |
AbstractThe study explores the recovery from landslides induced by Typhoon Morakot in 2009 in the Tsengwen reservoir watershed. The landslide recovery ratios in the following 2, 5, and 8 years after 2009 reached 80%,83%, and 87%, respectively. The active landslide was concentrated in the area with an elevation of 1750-2000 m, a slope of 35°-55°, and located within 500 m of the rivers. The landslide spatiotemporal hotspots were distributed upstream of the Tsengwen reservoir watershed, particularly in the Chankuchuan, Daban, Daderan, Siding, and Shanmei subwatersheds. The large landslide cases and the involved gullies and rivers occurred over the cluster area of landslide spatiotemporal hotspots and the distributed area of nonrecovered or new landslides.
Key Words: landslide evolution, landslide recovery, landslide spatiotemporal hotspotThe study explores the recovery from landslides induced by Typhoon Morakot in 2009 in the Tsengwen reservoir watershed. The landslide recovery ratios in the following 2, 5, and 8 years after 2009 reached 80%,83%, and 87%, respectively. The active landslide was concentrated in the area with an elevation of 1750-2000 m, a slope of 35°-55°, and located within 500 m of the rivers. The landslide spatiotemporal hotspots were distributed upstream of the Tsengwen reservoir watershed, particularly in the Chankuchuan, Daban, Daderan, Siding, and Shanmei subwatersheds. The large landslide cases and the involved gullies and rivers occurred over the cluster area of landslide spatiotemporal hotspots and the distributed area of nonrecovered or new landslides.
Key Words: landslide evolution, landslide recovery, landslide spatiotemporal hotspot | Department of Water Engineering and Resources Conservation, Feng Chia University, Taichung 410, Taiwan, R.O.C. * Corresponding Author. E-mail : chhuwu@fcu.edu.tw | Received: 2022/04/13
Revised: 2022/07/26
Accepted: 2022/08/02
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| | | 6 | | Morphological Evolution Mechanism of Gravel-bed Braided River through Numerical Simulation of Da-jia River | | | 7 | | Soil Depth Estimation and the Influence of Soil Depth and Vegetation Cover on Slope Stability in the Liukuei Experimental Forest | | | 8 | | Vulnerability Assessment of Buildings and Residents for the Catastrophic Debris Flow in Nansalu Village during Typhoon Morakot | |
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