Fuzzy AHP Method for Comprehensive Valuation of Sustainable Urban River Landscapes in BAXI Bay
Main Article Content
Keywords
AHP, fuzzy comprehensive evaluation, urban landscape evaluation, sustainable urban river management
Abstract
The evaluation of urban river landscapes faces the challenge of minimizing subjective bias while integrating ecological, social, and visual factors. This study developed an evaluation model combining the Analytic Hierarchy Process (AHP) and the Fuzzy Comprehensive Evaluation (FCE) method, and applied it to the Baxi Bay River in Yong’an City, Fujian Province. An evaluation system comprising 12 indicators across ecological, aesthetic, and social dimensions was established. The weights of each indicator were determined using AHP, and the membership scores for the Baxiwan River landscape were calculated using FCE. The results indicate that ecological factors dominate (63.34%), surpassing landscape aesthetics (26.05%) and social factors (10.61%). Among the indicator layers, river flow had the highest individual weight (0.38). Overall, the Baxiwan River received a landscape score of 70.6, corresponding to Grade 3 (moderate). Specifically, aesthetic factors averaged 67.34 points (Grade 2), ecological factors scored 70.5 points (Grade 3), and social factors scored 72.23 points (Grade 3). The recreational function received the highest score (85.9), while historical and cultural characteristics received the lowest score (58.5). The AHP-FCE model provides a systematic quantitative method for evaluating urban river landscapes, offering a theoretical basis and decision support for enhancing ecological functions and cultural integration.
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