摘要
兰州市区以崩塌、滑坡、泥石流为主的地质灾害非常发育,在诸多对地质灾害的影响因素中,降水是市区地质灾害最主要的引发因素。对兰州市区历史记载的山洪、地质灾害发生时的降水量进行分析,探讨兰州市区引发地质灾害的临界降水量,划定不同雨强时的地质灾害气象预警范围。
Rainfall is the key trigger factor among all factors leading to geological hazards in Lanzhou urban area where most of hazards are collapse, landslide and debris flow. By analyzing the precipitation when mountain torrents and other hazards recorded in Lanzhou history, the paper discussed the marginal rainfall which triggered geological hazards, and divided meteorologic warning unit to hazards based on the different raininess.
出处
《甘肃地质》
2013年第1期61-64,80,共5页
Gansu Geology
关键词
地质灾害
临界降雨量
兰州市区
geological hazards
marginal rainfall
Lanzhou urban area
