基于AHP-TOPSIS的公共空间植物景观评价分析——以广州市番禺区为例

Analysis of Plant Landscape Evaluation in Public Space Based on AHP-TOPSIS Method-Taking Panyu District as an Example

构建公共空间植物景观评价指标体系,对广州市番禺区不同类型公共空间的植物景观质量进行定量评价,为提高城市公共空间绿化景观水平提供参考。采用层次分析法(AHP)构建公共空间植物景观评价指标体系,采用专家打分法根据1~9比例标度法对各指标进行打分,确定各指标的权重;基于AHP确定的指标权重,使用优劣解距离(TOPSIS)法对番禺区5类典型公共空间(公园绿地、滨水绿地、居住区绿地、广场绿地、廊道绿地)的植物景观进行综合评价,评估各公共空间的植物景观质量。结果表明:AHP确定的指标权重表明,生态效益在评价体系中的重要性最高,权重达0.4983,景观观赏性次之,社会效益的权重最低。TOPSIS法评价结果发现,番禺区公园绿地空间植物景观效果最佳,滨水绿地空间和广场绿地空间次之,居住区绿地空间一般,而廊道绿地空间较差。通过系统分析,指出了生态效益在公共空间植物景观评价中的核心地位,同时揭示了番禺区公共空间植物景观质量的不均衡状态;番禺区公园绿地植物景观质量最优,而廊道绿地空间绿地景观还有较大改进空间。

To construct an evaluation index system for plant landscape in public spaces,the quality of plant landscapes in various types of public spaces in Panyu District,Guangzhou City is quantitatively assessed,which provides a reference for enhancing the greening landscape level of urban public spaces.An evaluation index system for plant landscape in public spaces was established by using the AHP.The expert scoring method was used to score each index according to the 1~9 proportional scale method,and the weight of each index was determined.Utilizing the indicator weights determined by AHP,the TOPSIS was applied to comprehensively evaluate the plant landscapes of five typical public space categories in Panyu District:park green spaces,waterfront green spaces,residential green spaces,square green spaces,and corridor green spaces,to assess the quality of plant landscapes in these public spaces.The weights of indicators determined by AHP revealed that ecological benefits held the highest importance in the evaluation system,with a weight of 0.4983,followed by aesthetic value,while social benefits had the lowest weight.The TOPSIS evaluation results showed that park green spaces in Panyu District had the best plant landscape effects,followed by waterfront and square green spaces.Residential green spaces were moderate,and corridor green spaces performed poorly.This study,through systematic analysis,underscores the central role of ecological benefits in evaluating plant landscapes in public spaces and reveals an uneven status of plant landscape quality across public spaces in Panyu District.Park green spaces in Panyu District exhibit the highest quality of plant landscapes,whereas corridor green spaces present substantial room for improvement.