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Vol.48, No.3, PP.105-152
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he Influence of Hydrological Events and Check Dams upon the Geomorphic Changes of the Meng-Gu Waterfall
Cheng-Wei Kuo[1] Su-Chin Chen[1]* Feng-Jyi Chang[2] Kai-Xuan Su[1] Min-Chih Liang[1] Yi-Jun Liu[1] Chia-Ling Huang[1]
* Corresponding Author. E-mail :
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Using a 2D Hydrodynamic Model to Assess the Dredging Efficiency in an Upstream Creek
Hsun-Chuan Chan[1] Liang-Jyun Ciou[1] Chen-Chieh Peng[1] Chern-Yuan Chang[2] Ping-Jung Kuo[2]
* Corresponding Author. E-mail : hcchan@
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Simulation and Application of Protection Facilities for Rockfall Hazard Area Based on the Discrete Element Method and Photogrammetry
Yu-Sen Lai Jun-Min Wang Chia-Ming Lo* Jian-Jie Lin
* Corresponding Author. E-mail :
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The Influence of Velocity on Brick Structure Vulnerability and Debris Flow Hazard
Chih-Hao Hsu* Ting-Chi Tsao
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Public Hazard Perception and Adjustment Behavior in the Lao-Jie River Watershed, Taoyuan City
Wei-De Tseng Shyue-Cherng Liaw*
* Corresponding Author. E-mail :
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Public Hazard Perception and Adjustment Behavior in the Lao-Jie River Watershed, Taoyuan City
Wei-De Tseng Shyue-Cherng Liaw*

This research aims to study residents’ hazard perception and adjustment behavior in the Lao-Jie River watershed, Taoyuan City. Based on document analysis and in-depth interviews, we try to understand residents’ perceptions
of the existence, cause, severity, and reoccurrence of flooding disasters. We also try to realize the spatial, temporal, and positional differences within these various perceptions. In addition, this research analyzes residents’ adjustment behavior during the pre-disaster warning, flooding occurrence, and post-disaster restoration periods. Results show that residents with longer residence time and more experiences with flooding understand the hazard situation well. Residents generally consider that the heavy rainfall during typhoons is the most important cause of disasters. However, recently the function of flooding release is decreasing due to the river channel covering, market buildings, and garbage blockage. This enhances the impact of flooding disaster. During Typhoon Nari in 2001, residents downstream witnessed the collapse of buildings, and deeply felt the severity of flooding. Chiefs of villages often collaborate with disaster prevention
and mitigation, so they also intensively understand the severity of flooding. After the improvement of the Lao-Jie
River, residents mostly consider that the possibility of flooding recurrence is becoming lower, but some residents believe that natural disasters are inevitable in the near future. As for adjustment behavior, residents paid attention to the disaster prevention information after Typhoon Nari. Chiefs of villages spread news, and maintain close contact with the government disaster prevention center. When flooding occurs, residents often adopt evacuation strategies to maintain their own security. Post-disaster restoration depends on outside assistance, and residents try to seek relevant resources and technical support.
Key Words: Hazard perception, adjustment behavior, Lao-Jie River watershed, flooding disaster, stream improvement.
Department of Geography, National Taiwan Normal University, Taipei 106, Taiwan, R.O.C.
* Corresponding Author. E-mail :
Received: 2017/06/05
Revised: 2017/07/28
Accepted: 2017/08/04
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