Fuzzy evaluation method for selection of immigrant settlement areas

Abstract

The invention discloses a site selection method for immigrant settlement areas based on a geographic information system. The method comprises the following steps of: 1) by using a spatial analysis technology, which comprises terrain analysis, buffer area analysis and superposition analysis, of the geographic information system, establishing a spatial site selection model, and thus obtaining a series of candidate points / areas; 2) establishing an evaluation index system of settlement areas, acquiring each index data of the candidate settlement areas, and entering a database; 3) performing dimensionless standardization on an original matrix of each evaluation index of the candidate settlement areas; 4) determining the weight of each evaluation index by using a composite even weighting method based on an information entropy theory; and 5) based on a fuzzy mathematical theory, performing quality sequencing on the candidate settlement areas by using a fuzzy adjacency ratio method. The method has an important practical application value in the site selection of the immigrant settlement areas of water and electricity engineering and has wider application prospect.

Description

technical field [0001] The invention relates to the technical field of geographic information system technology and multi-objective decision-making theory in the resettlement management of hydropower projects, in particular to a method for selecting resettlement areas. Background technique [0002] Hydropower project resettlement involves many aspects such as society, economy, politics, culture, population, resources, environment, nationality, engineering technology, etc. It is a huge and complex systematic project. Due to the large scope of resettlement and the large number of people involved in hydropower projects, the resettlement work is very difficult and complicated when dealing with many issues, especially the problem of site selection for resettlement areas. Once the site is not properly selected, it will affect the future life of the resettlers and the society. Harmonious and stable, it is very important to realize scientific resettlement site selection. [0003] T...

AI Technical Summary

Problems solved by technology

[0003] The traditional selection of resettlement areas mainly relies on paper materials, field surveys, subjective opinions of experts, and resettlement wishes, etc. These decision-making methods have many disadvantages, such as long time-consuming, limited experts' personal level, subjective influence, etc.

The site selection of immigrant resettlement areas has obvious spatial characteristics related to geographical location, and it is very difficult to describe the spatial characteristics of traditional subjective decision-making site selection

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