Rural settlement concentrated residential area site selection and optimization method based on GIS

Abstract

The invention discloses a rural settlement concentrated residential area site selection and optimization method based on GIS. The method comprises the following steps: firstly acquiring a target region space and attribute data based on the GIS, constructing an information amount model to perform rural settlement concentrated residence area land utilization suitability evaluation, superposing the land utilization planning permissible construction area to acquire a candidate site, setting the area size threshold to perform screening, and then optimizing the candidate site by using a P-median problem model. By utilizing the GIS technology, the information amount model is constructed, the rural settlement land utilization suitability evaluation and site selection are quantitatively performed,the P-median problem model in the integer linear programming is used for performing the location optimization, and the site selection demand is flexibly set, the site selection result is positioned tothe parcel; and the candidate site is based on the actual road network, and takes the daily work demand of the farmer after relocation into consideration, so that the distance cost is the minimum, and the method has the advantages of being high in precision and strong in operability.

Description

technical field [0001] The invention relates to GIS technology, in particular to a GIS-based site selection and optimization method for concentrated residential areas in rural settlements. Background technique [0002] Rural settlements are the main form of gathering of farmers. Their external shape and spatial structure are the result of their interaction with the surrounding natural environment, social economy, and human-land. Accurately grasping their internal laws has an important impact on the land consolidation work of rural settlements. . In recent years, based on location theory, many domestic scholars have explored the relationship between the distribution of rural settlements and various influencing factors from the perspectives of natural environment, economic development, and social culture, and conducted suitability studies for different types of rural settlements. Evaluation, and carry out layout optimization or zoning regulation, and analyze the layout optimi...

AI Technical Summary

Problems solved by technology

Quantitative analysis is rare. For example, some scholars use the regional division characteristics of the weighted Voronoi diagram and use the influence degree as the weight to determine the influence range of rural residential areas, so as to clarify the relocation and retention of residential areas. However, the Vorinoi diagram is based on distance analysis and has no Consider the actual needs of the settlement

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