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Vol.46, No.3, PP.133-196
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1
Geomorphological Nature and Identification of Hillslope Debris Flow
46(3):133-141
Tien-Chien Chen* Zhen-Yu Wang Bo-Long Chen
* Corresponding Author. E-mail : tcchen@mail.npust.edu.tw
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2
Analysis of Accuracy for UAV-derived Topography from a GoPro Camera
46(3):142-149
Chieh-Cheng Pai [1] Yi-Cheng Liu[2]* Yu-Shen Hsiao[1] Hui-Pang Lien[3] Ping-Hsien Lin[3]*
* Corresponding Author. E-mail : kenji700808@gmail.com
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3
Application of Terrestrial LiDAR on Mudstone Regolith Erosion
46(3):150-157
Ci-Jian Yang* Jiun-Chuan Lin Yuan-Chang Cheng
* Corresponding Author. E-mail : d03228001@ntu.edu.tw
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Application of Terrestrial LiDAR on Mudstone Regolith Erosion
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Ci-Jian Yang* Jiun-Chuan Lin Yuan-Chang Cheng

Abstract
This study aims to record the process of mudstone slope erosion during high intensity rainfall events using an artificial rain simulator and Terrestrial LiDAR. Further, we connect the erosion pattern and accumulated rainfall. Field Experiments are carried out in Longqi, Tainan.
The results show the water erosion process of mudstone regolith can be divided into four stages. (1): The main
erosion pattern is recognized as sheet erosion, because it has a large erosion range but low erosion volume; (2): When the erosion volume and rate increase rapidly, the erosion process enters the rill erosion stage; (3): As rill develops, the surface flow merges into a single water flow path, and the effect of the inter-rill erosion decreases. At the same time, the number and scale of the collapse also decline; (4): While the mud-cracks almost disappear, the erosion pattern enters the stable stage. At that time, the single rill becomes wider and deeper. In this stage, the main erosion process can be thought of rill erosion and collapse which occur occasionally.
Key Words : Mudstone regolith, water erosion, artificial rain simulator, terrestrial LiDAR, rill.
Department of Geography, National Taiwan University, Taipei, Taiwan.
* Corresponding Author. E-mail : d03228001@ntu.edu.tw
Received: 2015/02/01
Revised: 2015/05/20
Accepted: 2015/06/15
4
GIS-based Rapid Assessment for Classification of Utilizable Slopeland Limitation following a Disaster Event in the Chen-You-Lan Watershed
46(3):158-170
Ting-Yu Chang Siang-Min Wang Chao-Yuan Lin*
* Corresponding Author. E-mail : cylin@water.nchu.edu.tw
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5
Sediment Environment Assessment System for the Tseng-Wen and Baihe Reservoir Watersheds in Taiwan
46(3):171-180
Hsing-Chuan Ho[1] Bor-Shiun Lin[1] Chun-Yi Wu[2]* Su-Chin Chen[3] Yi-Da Chien[4] Ming-Fa Tsai [4]
* Corresponding Author. E-mail : cywu@alumni.nchu.edu.tw
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6
Experimental Analysis of the Flow Field Influenced by Plant Distribution on the Floodplain
46(3):181-188
Jin-Fu Li Shun-Chang Wang Su-Chin Chen*
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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7
The Practical Application of the Steel Pipe-Wall Method to Control Debris Flow and Landslides - A Case Study of Houyenshan Landslides
46(3):189-196
Sheng-Fu Sheu[1][3]* Chih-Hung Shih[2]
* Corresponding Author. E-mail : sanford877@yahoo.com.tw
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