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Vol.48, No.4, PP.153-205
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1
The Use of a Hydrological Catchment Model to Determine the Occurrence of Temporal Creeping in Deep-seated Landslides
48(4):153-162
Sheng-En Lin [1] Ya-Hsin Chan [1] Chih-Yu Kuo [1]* Rou-Fei Chen [2] Ya-Ju Hsu [3] Kuo-Jen Chang [4] Shin-Ping Lee [5] Ruo-Ying Wu [2] Ching-Weei Lin [6]
* Corresponding Author. E-mail : cykuo06@gate.sinica.edu.tw
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2
Application of Climate Change Scenario Data to Assess Debris Flow Impact and Volume
48(4):163-174
Tingyeh Wu* Hsin-Chi Li Yong-Ming Chen
* Corresponding Author. E-mail : tingyehwu1060@ncdr.nat.gov.tw
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3
Application of a High-Resolution Digital Surface Model Produced by an Unmanned Aerial Vehicle in Canopy Gap Interpretation and Slope Stability Assessment
48(4):175-187
Wei-Kai Huang[1]* I Ting[2] Ching-Fang Lee[1]
* Corresponding Author. E-mail : wuangwk@sinotech.org.tw
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4
Scour from Vertical Drop through Flume Experiment and FLOW-3D
48(4):188-196
Hao-Kai Ho * Po-Yen Liu Hung-Pin Huang
* Corresponding Author. E-mail : R04622020@ntu.edu.tw
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5
Elevation Variation Study in a Watershed Using Historical Topographic Maps
48(4):197-205
Ming-Te Sun[1] Kuei-Lin Fu[1] Kun-Che Chan[1] Yu-Wen Su[2]*
* Corresponding Author. E-mail : sywen2013@gmail.com
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Elevation Variation Study in a Watershed Using Historical Topographic Maps
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Ming-Te Sun[1] Kuei-Lin Fu[1] Kun-Che Chan[1] Yu-Wen Su[2]*

Abstract
In this study, we used historical topographic maps,
satellite images, and original aerial photographs,
which were taken using aerial stereo photography technology, to make digital elevation models that mimicked the recovery process of topographic evolution. After reviewing the three types of maps and images, we chose the Putanpunas stream watershed to mimic the recovery process of topographic evolution. Aerial photos were used to construct a digital elevation model for analyzing the topographic evolution. We found the largest change in elevation to be 45 m at an upstream location. Midstream and downstream changes in elevation were less than 8 m. A hydrological analysis provided solid evidence confirming the accuracy of the mimicked topographic evolution of a landslide site. Utilizing these maps and images in combination will serve as a powerful tool for regional planning, hazard assessment, sediment transport management, and environmental protection.
Key Words: Slope variation, topographic map, digital elevation model.
〔1〕Soil and Water Conservation Bureau, Council of Agriculture, Executive Yuan, Nantou 540, Taiwan, R.O.C.
〔2〕Ecological Soil and Water Conservation Research Center, National Cheng Kung University, Tainan 701, Taiwan, R.O.C.
* Corresponding Author. E-mail : sywen2013@gmail.com
Received: 2017/06/13
Revised: 2017/06/30
Accepted: 2017/10/17
6
Participation Motivation, Organizational Commitment, and Job Satisfaction for Soil and Water Conservation Volunteers
48(4):206-217
Ya-Ling Chen[1] Hsun-Chuan Chan[1]* Yan-Ling Wu[1] Yu-Hui Lin[2]Yung-Chuan Ko[2] Kuo-Feng Huang[2]
* Corresponding Author. E-mail : hcchan@nchu.edu.tw
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