The preliminary study of the distribution of the landslide geological hazards in Danba, Sichuan

The Danba county town, Sichuan stands at the foot of a giant palaeo -sliding mass and belongs to a highly hazardous area in Sichuan. Landslide data obtained from our field observations in Danba have been statistically studied in the present paper so as to understand the distribution of landslide geological hazards and to analyze related influencing fac-tors. The results of research indicate that the landslide geological hazards in Danba are generally distributed:(1)along the both sides of regional faults with higher density of population; (2)along the both sides of rivers with approximately e-qual amounts, and (3)in the moderate altitudes with moderate slope gradients. It has been suggested that the distribution of landslide geological hazards in Danba are mainly affected by the special landforms (especially by the slope gradients), intensely tectonic activities and increasingly intensive human activities, etc.