TYPE AND CAUSES OF MOUNTAIN HAZARDS IN HUAYING REGION,SICHUAN PROVINCE

In this paper the geographical position of the Huaying Mountain is described,and the mountainous region gravity disasters occurring in the Huaying Mountain area in recent years are comprehensively introduced.It is noticeable that the influence of mountainous region gravity disasters is quite significant in this area,and it has already became the main type of disaster in local area.Through various aspects of investigations and researches,with the integration of scientific analyses and empirical experiences,the various factors which cause the mountainous region gravity disasters are analyzed,and the origin of Huaying mountainous region gravity disasters is analyzed mainly from the perspectives of geology,hydrology and human activities.The possible external factors and internal factors which induce the mountainous region gravity disasters are summarised.It is obvious that the mountainous region gravity disasters are not merely caused by one factor,but by the mutual influence of multiple factors.As a result,various kinds of measures should be taken to prevent the disasters and reduce the consequent influence to people's work and life.