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气候变化影响下林芝地区泥石流发育规律研究

陈宁生 周海波 胡桂胜

气候变化研究进展2011,Vol.7Issue(6):412-417,6.
气候变化研究进展2011,Vol.7Issue(6):412-417,6.

气候变化影响下林芝地区泥石流发育规律研究

Development Rules of Debris Flow Under the Influence of Climate Change in Nyingchi

陈宁生 1周海波 1胡桂胜2

作者信息

  • 1. 中国科学院水利部成都山地灾害与环境研究所/中国科学院山地灾害与地表过程重点实验室,成都610041
  • 2. 中国科学院研究生院,北京100049
  • 折叠

摘要

Abstract

Based on the typical debris flows in Nyingchi, this paper presents the basic type, distribution and movement of debris flows, analyzes the initiation condition and critical threshold, and discloses the incubation law of debris flows, and also the impact of temperature and rainfall changes on debris flow initiation. Glaciers debris flow may be inspired during temperature or rainfall increasing. If daily precipitation < 5 mm, melting ice and snow debris is stimulated mainly by temperature; when daily precipitation is 5-10 mm, mainly the glaciers-rainfall debris flow occurs; when daily precipitation >10 mm, rainfall debris flow is in dominate. Glacier debris flows under temperature increasing and decreasing account for 80% and 20%, respectively, while the rainfall debris flows account for 60% and 40%, repectively. Much rainfall are benefit for the initiation of debris flows.

关键词

泥石流/气候变化/林芝地区

Key words

debris flow/ climate change/ Nyingchi region

分类

天文与地球科学

引用本文复制引用

陈宁生,周海波,胡桂胜..气候变化影响下林芝地区泥石流发育规律研究[J].气候变化研究进展,2011,7(6):412-417,6.

基金项目

国家科技支撑计划(2008BAB42B06) (2008BAB42B06)

气候变化研究进展

OA北大核心CSCDCSTPCD

1673-1719

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