Open AccessGeological hazard risk assessment based on GIS in Mianchi County
Author(s) -
Yingran Liu,
Yu Sun,
Quan Dong,
gyu Wei
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1961/1/012021
Subject(s) - landslide , debris flow , analytic hierarchy process , hazard , field survey , geologic hazards , geology , hazard analysis , geographic information system , physical geography , risk assessment , hydrology (agriculture) , vegetation (pathology) , hazard map , debris , geography , mining engineering , geotechnical engineering , remote sensing , seismology , engineering , operations research , medicine , oceanography , computer security , pathology , aerospace engineering , computer science , chemistry , organic chemistry
The probability of surface collapse, landslide, collapse and debris flow is very high in hilly and mountainous areas of Mianchi County of western Henan province. The article obtained geological hazard district of Mianchi County though the analytic hierarchy process(AHP) to carry on the geological hazard risk assessment in the study area. Eight disaster-inducing factors were selected the density of disasters, slope gradient, slope height, slope shape, rock-soil body types, vegetation index, rainfall index, and engineering activity intensity based on the GIS platform and combined with the field investigation result of geological disaster points.