Spatial expansion method and system for construction land

Abstract

The invention discloses a spatial expansion method and system for a construction land. The method comprises the steps of: performing multi-factor evaluation on a target area according to different types of evaluation factors to obtain an expandable first land area; when the first land area is smaller than the required land area, repeatedly adjusting one or more evaluation factors, performing multi-factor evaluation on the target area according to the adjusted evaluation factors to obtain an expandable second land area, and when the second land area is greater than the required land area, performing superimposed calculation on the first land area and the second land area to obtain expandable land position and area. By adopting the method and the system, the land position and area serving as the construction land can be reversed according to the construction land requirement, so that the available construction land is not limited to the existing available land, and the expandable range of the construction land is enlarged.

Description

technical field [0001] The invention relates to the technical field of construction land suitability evaluation and construction land space expansion, in particular to a construction land space expansion method and system. Background technique [0002] The suitability evaluation of construction land is an important basic work in urban overall planning. It can determine the maximum supply and distribution of construction land in the research area, guide land use planning and land use structure adjustment, and determine the most suitable use of land. Provide scientific basis for scientific adjustment of land use structure. It plays an important role in cherishing and rationally using land, solving contradictions between the increase of construction land and the decrease of cultivated land, and ecological balance. Scholars at home and abroad have conducted a lot of research on this from different angles. Foreign countries pay more attention to the selection of a certain land u...

AI Technical Summary

Problems solved by technology

[0003] For a long time, most of the methods for evaluating the suitability of construction land are to analyze the suitability of land as construction land from a single index, such as land suitability evaluation, ecological security evaluation or land potential evaluation. Without analyzing its suitability from many aspects, this will lead to poor practicability of the analysis results

And all the current methods are to deduce the restrictive conditions of land suitability and ecological security from positive analysis, so as to analyze whether the land is suitable for use as construction land, so that only the suitability of the existing land can be obtained

However, for areas where the existing available land is basically used up and there is basically no land available for construction, these methods cannot solve the problem of how to find usable land at all

For example, in many highly industrialized areas in China or areas with small land areas, such as Fujian Province, which has eight mountains, one water and one field, there are very few construction lands, and it is impossible to find usable construction land with conventional construction land suitability evaluation methods

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