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Vol.51, No.4, PP.127-172
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1
Deep Neural Networks for Object-Based Image Classification of Hyperspectral Images
51(4):127-139
Ming-Der Yang[1,2] Hsin-Hung Tseng[1,2]* Yi-Chin Hung[1] Yu-Chun Hsu[1,2]
* Corresponding Author. E-mail : d108062001@mail.nchu.edu.tw
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2
Applying Portable Magnetometers to Detect Buried Instruments After a Debris Flow Event
51(4):140-146
Hsien-Te Chou[1*] Chih-Hsuan Huang[1] Horng -Yuan Yen[2] Tao-Ssu Tsai[3]
* Corresponding Author. E-mail : htchou@cc.ncu.edu.tw
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3
Long-Term Geomorphologic and Landslide Evolution in the Heshe River Watershed After Frequent Sediment Disasters
51(4):147-158
Chun-Hung Wu Zhou-Ting Zhou* Cheng-Yi Lin
* Corresponding Author. E-mail : wdrg1122@gmail.com
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Long-Term Geomorphologic and Landslide Evolution in the Heshe River Watershed After Frequent Sediment Disasters
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Chun-Hung Wu Zhou-Ting Zhou* Cheng-Yi Lin

Abstract
This research focused on geomorphologic and landslide evolution in the Heshe River watershed over a period of more than 10 years. The annual landslide ratios from 2001 to 2015 were greater than 3.0%, and the ratio in
2009 reached 6.5 %. The large-scale landslide area from 2010 to 2015 gradually decreased in size, but the frequency
of non–large-scale landslides during the same period gradually increased, primarily because of bank erosion. Sediment deposition in the main reach of the watershed from 2004 to 2011 was concentrated in the intersection of Toukeng creek,No. 2 creek, and the Shenmu watershed; the average sediment deposition depth ranged from 9.2 m to 10.7 m. The areas of active and highly active landslides were 2.01 km2 and 1.32 km2, respectively, and were located upstream of the Shenmu watershed.
Key Words: landslide evolution, landslide recovery, sinuous river, Heshe river watershed
Department of Water Engineering and Resources Conservation, Feng Chia University, Taichung 410, Taiwan, R.O.C.
* Corresponding Author. E-mail : wdrg1122@gmail.com
Received: 2020/09/29
Revised: 2020/11/18
Accepted: 2020/12/04
4
Planning the Extent of Fluvial Corridors in Taiwan
51(4):159-168
Chia-Ning Yang Cheng-Wei Kuo*
* Corresponding Author. E-mail : cwkuo@mail.sinotech.com.tw
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