Method for compositely evaluating ecological suitability of urban multifunctional land based on GIS (Geographic Information System)

Abstract

The invention provides a method for compositely evaluating the ecological suitability of urban multifunctional land based on a GIS (Geographic Information System), comprising the following steps: a, identifying the main potential functions of urban land; b, based on the function of each piece of main land, collecting the analysis elements of ecological suitability to form various elements for the analysis of index systems of land function objectives; c, obtaining the special distribution information of ecological suitability of various land functions through spatial analysis and calculation by utilizing the GIS. According to the method, the multiple potential functions of urban land utilization are targeted; as the analysis elements of ecological suitability are linked with multiple land function objectives, the excavation and utilization level of attribute data of existing spaces is significantly improved; therefore, the decision on urban land utilization is provided with more accurate science and technology support.

Description

technical field [0001] The invention relates to a GIS-based composite evaluation method for ecological suitability of urban multifunctional land. This GIS-based composite evaluation method of ecological suitability of urban multi-functional land use can not only be applied to the evaluation of land use suitability in ecological environment research, but also help to integrate ecological land use evaluation with the land use planning of the current land management department, and planning The Department's urban master plan integrates geographical and ecological theory into the urban land management decision-making process. Background technique [0002] Land is an important carrier of urban social and economic development, and it is also an important component of the ecosystem. Within a limited space, the potential utilization of urban land resources is diverse, including ecological protection land, ecological restoration land, road land, industrial land, etc., that is, the f...

AI Technical Summary

Problems solved by technology

However, the existing ecological suitability analysis methods have the following two shortcomings: (1) The land function in the ecological suitability analysis is single, ignoring the complex characteristics of urban land use functions

Existing ecological suitability analysis usually only analyzes the suitability of land use function for construction, and the result of such analysis essentially only emphasizes the function of a single urban land use, while ignoring other potential land use functions

(2) Inadequate consideration or insufficient use of ecological suitability evaluation elements

Due to the singleness of the existing ecological suitability evaluation goals, many important spatial attribute elements have not been integrated into the evaluation system, or the acquired spatial attribute elements are only used once. For example, because the current ecological suitability evaluation is only for construction land, Consideration is rarely given to the suitability evaluation elements of ecological restoration land, or it is only used as an element to limit construction land, resulting in relatively low data mining effectiveness

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