基于GIS的城市建设用地生态适宜性评价

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中图分类号：P208;TU984.115 文献标志码：A 文章编号:1003-5168(2025)12-0114-05

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.12.022

Ecological Suitability Evaluation of Urban Construction Land Based on GIS

LI Shibao (Anhui Urban Construction Design and Research Institute Co.,Ltd.,Hefei 23oooo,China)

Abstract: [Purposesl Quantitative analysis and evaluation of the ecological suitability of construction land provides a reference for addressing the contradiction between urban expansion and limited land resources.[Methods] Taking Lu'an City asa case study,the ecological suitability of urban construction land was calculated with the support of GIS by selecting the influencing factors of urban construction land,using the ANP method to determine the weights of each influencing factor and constructing an evaluation index system.Findings] The results show that most of the suitable construction areas are distributedin theurbanarea of Lu'an Cityand the countiesunder its jurisdiction,the suitableconstruction areas are primarily developed land with a strong economic foundation and high development level.The moderately suitable construction areasare close to the central plain hils and basins or the area with more fragmented terrain,with diverse terrain and no distinct characteristics,and the slope is mostly 8∘～ （20 （202 20∘ ; The main characteristics of the prohibited construction area are areas with high terrain altitude or steep slopes,which are mostly distributed in the mountainous areas of the north and south.[Conclusions] In the future,Lu'an City should focus on optimizing construction land from aspects such as urban planning,ecological spatial planning,balancing resources and environmental factors and enforcing ecological red-line policies.

Keywords:construction land; ecological suitability; Lu'an City

0 引言

我国城市数量多，类型复杂，发展水平各不相同[1]，不同城市在进行城市建设用地适宜性评价时所采用的评价指标体系与合成计算方法也有所不同[2，但总体的评价指标基本是从经济、社会等人文因素进行定性描述，而重点针对生态系统、生态环境等方面的评价因素较少且对GIS的空间分析及可视化技术利用不充分[3]。（剩余6297字）