%0 Journal Article
%A LI Yuan-liang
%A REN Guang-ming
%A HUANG Xi-chao
%A YANG Lei
%A FAN Rong-quan
%T Spatial Distribution of Rockfalls and Landslides in Northern Area of Heishui River Basin in Panzhihua-Xichang Region
%D 2016
%R 10.11988/ckyyb.20151029
%J Journal of Yangtze River Scientific Research Institute
%P 57-62
%V 33
%N 10
%X :Geological disasters are highly prone to take place in the northern area of Heishui river basin in the Panzhihua-Xichang region. The distribution rules of rockfalls and landslides in the region are researched based on field investigation and high-precision remote sensing image interpretation in association with ArcGIS. The main results are  concluded as follows: 1) there are 76 rockfalls and 487 landslides in the study area and 93.4% of the landslides are distributed in slope with gradient of 10°-40°,and 47.4% of the rockfalls are distributed in slope with gradient of 40°-50°; 2) the types and susceptibility of mountain hazard are determined by the combination characteristic and mechanical strength of rock and soil mass in macro scale; 3) at present earthquake activity in the study area is relatively quiet, but faults also have influence on the development of landfalls within a distance of 500m and landslides of 300m, and large-scale landslides and rockfalls usually develop at regions traversed by faults; 4) the distribution of landslides is controlled by river water system in macro sense; 5) roads have influence on the development of landslides within a distance of 300 meters.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20151029