期刊論文

標題 Fractal analysis of rainfall-induced landslide and debris flow spread distribution in the Chenyulan Creek Basin, Taiwan
學年 104
學期 2
出版(發表)日期 2016/02/02
作品名稱 Fractal analysis of rainfall-induced landslide and debris flow spread distribution in the Chenyulan Creek Basin, Taiwan
作品名稱(其他語言)
著者 Zon-Yee Yang; Hamid Reza Pourghasemi; Yen-Hung Lee
單位
出版者
著錄名稱、卷期、頁數 Journal of Earth Sciences 27(1), p.151-159
摘要 The Chenyulan Stream in Central Taiwan follows the Chenyulan fault line which is a major boundary fault in Taiwan. In recent years, many destructive landslides have occurred in the Chenyulan Creek Basin after heavy rainfall accompanied by several strong typhoons. Three examples of landslide distributions in the Chenyulan Creek Basin, before and after 1996 and after 2004 are analyzed. The box dimension and two-point correlation dimension are employed to describe the landslide area size distribution and distance distribution between every two landslides, respectively. It is found that the number of landslides increased in this period. However, the average landslide area decreased. The correlation dimension gradually increased from 1.15 to 1.32 during this period (before and after 1996 and after 2004). This implies that the landslide distribution in the Chenyulan Creek Basin has become diffuse and extensive. The box dimension value shows the degree of the landslide density occupied in a space. The box dimension also increased from 0.3 to 0.69 during this period. The increasing box dimension means that the landslide presented in this creek basin has gradually increased. This indicates that the slopes of this creek basin have become more unstable and susceptible.
關鍵字 landslide distribution;box dimension;two-point correlation dimension;Taiwan
語言 英文
ISSN 1674-487X;1867-111X
期刊性質 國外
收錄於 SCI;
產學合作
通訊作者 Hamid Reza Pourghasemi
審稿制度
國別 中國
公開徵稿
出版型式 ,電子版