四川省城市灾害的环境地貌研究

A STUDY OF ENVIRONMENTAL GEOMORPHOLOGY ON URBAN DISASTERS IN SICHUAN

分析了四川省城市地貌环境和城市灾害的主要类型.认为,地貌环境与城市灾害的形成机制、致灾过程和分布状况明显相关.在四川,平原城市的主要灾害是洪灾;丘陵城市则是洪灾和坡地灾害;山地城市则是坡地灾害、泥石流与洪灾.

Urban disasters cause serious destruction and are very harmful, and show a tendency to increase in number and become intensified in recent years. On the basis of analysing urban disasters in Sichuan province, the author holds that the geomorphological environment has much to do with the mechanism, the processes and distribution of the urban disasters. In Sichuan, main types of urban disasters are floods in plain-cities, floods and slope in'stability in hill-cities and slope instability, mud-rock flows and floods in mountain-cities. The study of environmental geomorphology on urban disasters is an important content of a systematic research on urban disasters.