Study on the Geological Disasters Response to Climate Change in Different Temporal Scales
详细信息
- 责任者：Yin Zhiqiang (China Institute of Geo-Environment Monitoring ; Beijing 100081 ; China) ; Meng Hui
- 刊名：Geological Review
- 出版年：2013
- 卷期：59(6)
- 关键词：地质灾害 ; geologic hazards ; 气候 ; climate
- 页码：p.1110-1117
- 图表：6 illus., 1 table, 23 refs.
- 分类号：1800
- issnNo：ISSN0371-5736
- isbnNo：CN11-1952/P
摘要
In this paper,the relationship of geological disasters triggered factors response to climate change in different temporal scales were been studied. The cluster developments of geological disasters are consistent with the climate change and their warm and humid and heavy rainfall periods. And conclusions are followed: ① There were five phases of centralized development of ancient landslides and old landslides since Late Pleistocene in NE Xizang( Tibet) Plateau,they were 53 ~49ka BP,33 ~24 ka BP,10 ~8 ka BP,5 ~3. 5 ka BP and present,their mainly developmental periods were climate change transition and highly warm wet periods. ② The high incidence of geological disasters response to the strong period of the Asian summer monsoon in centennial scales,and 1300 ~1330 AD and 1820 ~ 1850 AD were high prone development of geological disasters that correspond to the Medieval Warm Period and the late 19th century monsoon stronger period. ③ The cluster development of geological disasters in China response to an average annual rainfall in decade scales,and the number of geological disasters are increasing when the higher average annual rainfall years. ④ The number of geological disasters are good consistent with accumulated extreme rainfall on inter-annual scales. Extreme climate events was the key factors that induced by the heavy rainfall or continuous precipitation,which caused the collapses and landslides and reflected the constraints of the relationship between climate change and geological disasters. ⑤ Collapses,landslides,debris flows and other sudden geological disasters are mainly concentrated in the annual rainy season in China on monthly scales.
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