济南小清河典型风貌段植物配置模式与景观功能效果综合评价

Comprehensive Evaluation and Landscape Function Effect of Plant Allocation Pattern in the Typical Landscape Section of the Xiaoqing River in Jinan

2019年济南小清河重新进行改造,其是具有排洪灌溉、水路运输、康养休闲等功能的重要城市河道。针对其改造后的6个典型风貌段植物配置及其景观效果,采用样方详查法采集数据,构建评价指标体系,分析每类植物配置模式中的横向和竖向结构特色。通过层次分析法(Analytic Hierarchy Process,AHP)和聚类分析法综合评价了16种植物配置模式及其景观效果。结果表明:AHP准则层的影响因子中,功能属性为主要因素,安全性、景观持续性等是指数层的主要影响因子;两种方法均筛选出景观效果最佳的和最差的植物配置模式,分别为M1、M2、M11、M13和M3、M8、M9。与AHP相比,聚类分析法客观性评价占主导,更符合实际情况,可为城区河道植物配置模式及其景观效果评价提供重要参考依据。

The Jinan Xiaoqing River was reconstructed in 2019,which plays the role of the urban river with flood drainage,irrigation,waterway transportation,recreation,and other functions.Based on the landscape effect of the plant configuration patterns in six typical landscape sections of Xiaoqing River in Jinan,the relevant data was collected through a detailed sample survey.The concepts of horizontal and vertical structure in the plant allocation model were introduced to build the evaluation index system.Two methods of Analytic Hierarchy Process (AHP) and cluster analysis were used as comprehensive evaluation analyses for 16 plant allocation models in the study area.The results indicate that:The function attribute is the main factor in the influence factors of the criterion layer based on AHP,and safety and landscape sustainability are the primary influence factors of the index layer.The results between AHP and cluster analysis methods were slightly different.Still,both could screen out the best landscape configuration patterns M1,M2,M11,M13,and the worst plant configuration patterns M3,M8,and M9.Compared with AHP,the cluster analysis method is more realistic due to its dominated by objective evaluation.Therefore,combining subjective and objective analysis is more valuable for comprehensively evaluating the plant landscape effects.