Abstract
Geological disasters are highly hazardous, and the corresponding means of measures should be selected for different monitoring and prevention, depending on the diversity of the size, type and level of the geological hazard. This paper focuses on two geological disasters, landslides and debris flows, which are different in nature but related to geological and other conditions highly prevalent in China's mountainous areas. The main causal mechanisms of landslide hazards include geological, climatic, and triggering conditions. Monitoring methods are mainly through instrumentation, which allows for more accurate monitoring of deformation and changes in water volume. The main mechanisms for debris flow hazards include geological, material, and water conditions. Monitoring debris flows includes mud level monitoring, rainfall monitoring and other monitoring such as infrasound monitoring. In disaster management, consideration should be given to the prevention and control of the natural environment as well as to the regulation and restriction of human production and living activities, with particular attention to the early prevention and control of special disaster-prone areas.
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