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Vol.54, No.2, PP.091-183
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1
Mechanical Analysis of Steel Check Dam Subjected to Loading of Debris Flow
54(2):91-107
Der-Guey Lin Yu-Po Huang Ya-Chu Chiu*
* Corresponding Author. E-mail : clarice.chiou@gmail.com
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2
Trend of Sediment-related Disasters Triggered by Rainfall in Taiwan from 2006 to 2020
54(2):108-118
Yung-Chiau Lin[1][2] Chen-Yu Chen[1]* Cheng-Ying Chuang[1][2] Jyun-Wei Chen[1] Wan-Yu Chan[1]
* Corresponding Author. E-mail : cychen59@gmail.com
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3
Application of Statistical Cluster Analysis and Multitemporal Surface Displacement Data for the Analysis of Slope Subzone Activity
54(2):119-129
Pi-Wen Tsai1 [1] Chih-Yu Kuo [2,3]* Yi-Chun Chen [4] Rou-Fei Chen [4]
* Corresponding Author. E-mail : cykuo06@gate.sinica.edu.tw
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4
Development of Splash Erosion Estimation Equation
54(2):130-140
Zhen-Yuan Wu[1]* Chia-Chun Wu[1] Jheng-Yun Sie[1] Xin-Jie Lin[1]
* Corresponding Author. E-mail : wu871003@gmail.com
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Development of Splash Erosion Estimation Equation
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Zhen-Yuan Wu[1]* Chia-Chun Wu[1] Jheng-Yun Sie[1] Xin-Jie Lin[1]

Abstract
Water erosion starts with raindrops impact. Raindrop impact (which reflects the erosivity of precipitation) has been treated as independent mechanism with respect to the constitution of primary particles and stability of soil aggregate (which characterizes soil erodibility), but they interact; even volumetric soil water content may affect
the process as well as the amount of soil loss from splash erosion. This study uses waterdrop generator to study the
splash erosion at different volumetric soil water contents and soil properties. Results indicate that amount of splash
erosion is highly correlated with waterdrop diameters, modified particle-size parameter, volumetric soil water content,and water aggregate stability. A splash erosion estimation equation was developed, in which all principal physical parameters were embedded, the adjusted coefficient of determination R2 reaches 0.804, and all parameters reach statistic significant level.
Key Words: Splash erosion, Waterdrop diameter, Volumetric soil water content, Soil properties, Water aggregate
stability
Department of Soil and Water Conservation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan, R.O.C.
* Corresponding Author. E-mail : wu871003@gmail.com
Received: 2022/05/20
Revised: 2022/08/01
Accepted: 2022/10/17
5
Development of Workflow for Slope Hazard Warning System Based on Coupled Hydromechanical Model and Observations
54(2):141-149
Chuen-Fa Ni[1]* Wei-Ci Li[2] Chien-Fan Chen[3] Cheng-Fa Tsai[3] Min-Hsi Hsieh[3] Yi-Yun Hsieh[3]
* Corresponding Author. E-mail : nichuenf@ncu.edu.tw
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6
Database of Vegetation Engineering Plants in Soil and Water Conservation of Taiwan
54(2):150-163
Ying-Ren Chen[1] Tien-Chien Chen[2]* Hung-Li Lin[1] Shan-Chou Hsieh[3]
* Corresponding Author. E-mail : tcchen@mail.npust.edu.tw
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7
The Study of Multi-category Image Analysis by Using Convolutional Neural Network for Land Use of Watershed
54(2):164-173
Peng Hsin-Wei* Wan Shiuan Yu-Hsin Cheng
* Corresponding Author. E-mail : rqw85068506@gmail.com
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8
Desilting Efficiency of Drainage Pipe Installed at the Bottom of a Vertical Shaft in a Farm Pond
54(2):174-183
Chyan-Deng Jan[1] Tung-Yang Lai[1]* Ji-Shang Wang[2] Yu-Chao Hsu[2] Hong-Xiang Ko[1]
* Corresponding Author. E-mail : N88104018@gs.ncku.edu.tw
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