Geological environment bearing capacity analysis method based on AHP-GIS coupling analysis

Abstract

The invention belongs to the technical field of geological environment bearing capacity analysis, and discloses a geological environment bearing capacity analysis method based on AHP-GIS coupling analysis, and the method comprises the steps: analyzing relations among all factors in a system, carrying out the rationalization and layering of problems, and constructing a hierarchical structure model; constructing a geological environment bearing capacity evaluation system based on ten evaluation index layers in three aspects of geological environment, ecological environment and social environment according to a regional post-earthquake geological environment background, ecological environment conditions, disaster point distribution and social development conditions, and calculating contentsof the geological environment bearing capacity evaluation index system in a hierarchical manner; determining an important criterion layer, namely a geological environment, of a geological environmentbearing capacity evaluation system. A spatial analysis method of vector data in ArcGIS is adopted. The regional construction scale is controlled, urban planning suggestions that ecological species primitiveness is kept in a natural conservation region and development and transformation are not required are provided, and a clear development direction is provided for post-earthquake development planning of the region.

Description

technical field [0001] The invention belongs to the technical field of geological environment carrying capacity analysis, in particular to a method for analyzing the geological environment carrying capacity based on AHP-GIS coupling analysis. Background technique [0002] At present, the closest existing technology: natural disasters such as mudslides, landslides, and collapses caused by earthquakes have seriously threatened the stable development of the social economy and ecological environment in mountainous earthquake-stricken areas, and have become the focus of government functional departments. The Fujiang River Basin is an important watershed in the upper reaches of the Yangtze River. It is located in the transition zone of Longmen Mountains, the junction of Longmen Mountains and the Sichuan Basin. The natural geological conditions in the watershed are complex and the ecological environment is fragile. This area is an extremely disaster-stricken area. The Jiuzhaigou ea...

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Problems solved by technology

The data involved are complicated, the types of data need to be screened, and the screening project is relatively complicated. In addition, manual judgment itself may have a certain degree of subjectivity, which is also a problem that the technology needs to solve at this stage.

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