多生态安全格局下的国土综合适宜性评价——以淮北市为例

Evaluation and Analysis of Urban Land Comprehensive Suitability Under Multi-Ecological Safety Pattern:A Case Study in Huaibei,China

综合考虑土地的经济属性和自然属性,提出由土地发展潜力和土地生态敏感性构成的土地综合适宜性评估模型。通过将土地经济发展潜力和土地生态适宜性评价结果划分为不同的等级,实现不同等级评估结果的叠加分析。根据判断矩阵的评判结果,构建不同的土地生态安全格局,得到不同条件限制下的土地综合适宜性评价结果。在此基础上,以淮北市为例,分析了低生态安全格局、高生态安全格局和中生态安全格局3种生态安全格局下的土地综合适宜性。通过对比分析发现,中生态安全格局的评估结果能有效平衡城市开发建设和生态环境保护的要求。最后基于评价结果划分淮北市城市用地的"四区",并针对不同用地类型提出相应的管控建议。

The economic and natural attributes of land are the main aspects to be considered when evaluating the suitability of urban land.Both are important criteria for assessing the suitability of urban land.The ultimate goal of the both is to realize urban land development and ecological environment.In this paper,considering these two aspects,a comprehensive land suitability assessment model consisting of urban land development potential and land ecological sensitivity is proposed.And by dividing the land development potential and the land ecological suitability evaluation results into different levels,the superposition analysis of the different levels of evaluation results is achieved.According to the judgment results of the judgment matrix,different land ecological security patterns are constructed,and the results of comprehensive land suitability evaluation under different conditions are obtained.On this basis,this paper takes Huaibei City as an example to analyze the comprehensive suitability of land under three ecological security patterns:low ecological security pattern,high ecological security pattern and medium ecological security pattern.Through comparative analysis,it is found that the assessment results of the medium ecological security pattern can effectively balance the requirements of urban development and ecological environment protection.Finally,based on the evaluation results,the urban land in Huaibei is divided into four categories:suitable construction area,condition construction area,restricted construction area and prohibited construction area,and corresponding management and control suggestions are proposed for different land types.