Rainfall Thresholds for Regional Landslides
详细信息
- 责任者：Zhao Heng (Department of Civil Engineering ; Tsinghua University ; Beijing 100084 ; China) ; Song Erxiang
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(5)
- 关键词：滑坡 ; landslides ; 降雨量 ; rainfall
- 页码：p.1481-1487
- 图表：2 illus., 2 tables, 29 refs.
- 分类号：1702
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
Based on a certain regional division of China,rainfall thresholds for regional landslides in different areas were collected.The results show that they are highly correlated to climate and are approximately 0.04~0.08 times of mean annual precipitation (MAP). A review of domestic researches showed that the influence of heavy rainfall in short term couldn’t be reflected from current rainfall thresholds which were often obtained without enough argumentation. A rainfall intensity-duration threshold I=4.0D-0.51 was obtained for the west area of Hubei Province with a method advised for defining the start point of rainfall duration.