Research On Landslide Susceptibility Assessment Information System Of Yunnan Province Based On ArcGIS Engine

Yunnan Province is one of the provinces that suffered the most serious landslide in China,and every year the landslide geological disaster has caused great casualties and economic losses in Yunnan Province.Therefore,it is necessary to systematically understand the causes of the landslide geological disasters in Yunnan Province,analyze the formation conditions and spatial and temporal distribution patterns of landslide geological disasters in Yunnan Province,and evaluate their susceptibility.Design of establishing database of landslide geological disasters in Yunnan Province and Yunnan Province landslide geological hazards assessment information system can be quick and easy realization of landslide geological disaster data in Yunnan Province information and dynamic regulation and renewal,and landslide geological hazards assessment,and other functions in Yunnan Province.Firstly,based on the theory of a large number of research methods related to landslide geohazard susceptibility assessment,this paper analyzes and summarizes the development and characteristics of the landslide geohazard susceptibility assessment research;At the same time,it also analyzes the geological environment background of landslide geological disaster in Yunnan Province and the present situation of geological disaster distribution in Yunnan Province.Secondly,based on the project "Research on Mechanism and Early-warning Demonstration of Geological Hazards of Rainfall-type Landslides in Yunnan Province",this project fully collected the data of basic geography,basic geology and the special subject of landslide geological disasters in the study area and sorted out the data collected;GIS technology was used to extract,analyze and classify the evaluation index of susceptibility of landslide geological disasters in the study area,and select the information model to evaluate the susceptibility of landslide.Finally,in the user requirement analysis,data analysis and feasibility analysis,on the basis of landslide geological disasters in Yunnan Province,the author of this paper is used evaluation information system for the overall design and detailed design,the landslide geological disasters in Yunnan Province was established based on GeoDatabase technology design spatial database,and based on ArcGIS Engine secondary development technology components and object-oriented visual programming language in visual c# studio 2010 software development platform system development and integration build to the basic function module,information query and retrieve module,statistics analysis module,data dynamic maintenance module,liability evaluation module,auxiliary function module,printing module and help module as the main body of the eight system function module,the final design realization of landslide geological hazards assessment information system of Yunnan Province.The realization of the function of the landslide liability assessment information system of Yunnan Province,the province of landslide geological disaster prevention and control work to provide scientific decision support,improve the efficiency of the landslide geological disaster management,helps to guide the construction site construction and disaster prevention and mitigation work,effectively reduce landslide geological disasters caused casualties and property losses,has great application value.