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Vol.47, No.3, PP.111-170
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1
Modular Check Dam Management in a High-Sediment-Disaster Torrent
47(3):111-121
Su-Chin Chen[1]＊ Shuan-Pei An[1] Kokuryo Hiroshi[2] Yung-Hsin Lin[3]
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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2
Investigation and Assessment Methods for the Impact of a Largescale Landslide on a Neighboring Village
47(3):122-134
Ming-Chien Chung[1]* Chien-Hsin Chen[1] Ching-Fang Lee[2] Wei-Kai Huang[2] Chih-Hao Tan[1]
* Corresponding Author. E-mail : mcchung@sinotech.org.tw
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3
Mechanical Parameter Study of Tied-Back Retaining Pile Stabilization Method for Cut Slopes of Forest Roads in Mountain Areas
47(3):135-146
Der-Guay Lin Sheng-Hsien Wang * Kuo-Chin Chang Wei-Hsiang Chen
* Corresponding Author. E-mail : d099042007@mail.nchu.edu.tw
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4
Riprap Protection in Controlling Local Scour at the Toe of a Groundsill
47(3):147-155
Chia-Chun Wu* Ping-Chi Huang Ya-Yun Wu
* Corresponding Author. E-mail : ccwu@mail.npust.edu.tw
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5
Topographic Characteristic Analysis of Landslides in Kaoping River Watershed
47(3):156-164
Chun-Yi Wu Chiao-Wen Tsai Su-Chin Chen*
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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Topographic Characteristic Analysis of Landslides in Kaoping River Watershed
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Chun-Yi Wu Chiao-Wen Tsai Su-Chin Chen*

Abstract
An analysis method for landslide topographic
characteristic, considering the factors such as landslide
size, average slope, location and geologic condition, was used to draw landslide scale and slope statistical chart. The landslides caused by the typhoons in 2008 and 2009 in Kaoping River Watershed were investigated and then analyzed. The landslide ratios were 1.36% and 7.92% in slate area in 2008 and 2009, respectively. The highest degree of increase in landslide ratio showed the landslide probability in slate area rose obviously because of the heavy rainfall during Typhoon Morakot. The analysis results of landslide topographic characteristic showed landslide average slopes were lowest,39.8° and 34.8° in 2008 and 2009, and the probability of the whole slope landslides was highest in hard sandstone and shale area. Additionally, the landslide average slopes were highest, 46.8° and 41.2° in 2008 and 2009 in Tananao
schis area, and there was no whole slope landslide in 2008 and 2009 in quartzose sandstone area and Tananao schis area.
KeyWords : topographic characteristic of landslides, landslide ratio, Kaoping River Watershed.
Dept. of Soil and Water Conservation, National Chung-Hsing University, Taichung 402, Taiwan, R.O.C.
* Corresponding Author. E-mail : scchen@nchu.edu.tw
Received: 2014/01/22
Revised: 2014/06/03
Accepted: 2016/08/22
6
Evaluation of Trivalent and Hexavalent Chromium Retention on Ain Oussera Soil by the Batch Method and Radiotracer Technique.
47(3):165-170
Rebhi A.M.[1]* Bouzidi A.[2] Lahrech M. B.[3] Mouhouche F.[4] Ararem A.[2] Rebhi F.[2] Lounici H.[5]
* Corresponding Author. E-mail : rebghani@hotmail.com
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