基于模糊层次-主成分分析法的河道生态护坡综合评价

Comprehensive Evaluation of River Ecological Slope Protection Based on Fuzzy Hierarchy and Principal Component Analysis

生态护坡综合评价是以评价指标为基础,研究方法为导向,为河道生态建设提供理论依据。从生态护坡安全性、生态环境、适宜性、经济效益等方面构建生态护坡综合评价指标体系,运用模糊层次分析法和主成分分析法对红旗河片区河道生态护坡进行综合评价。结果表明,西塘河的堤防河流生态带护坡得分为2.364;钱家浜的生态混凝土护坡得分为-1.936;十字港河的石笼谷坊护坡得分为0.545,表明西塘河堤防河流生态带表现效果好,与模糊层次分析法得到的评价结果一致。模糊层次的主观性和主成分分析的客观性相结合,更能准确地确定影响生态护坡的主要因素,其结果体现了改善和提高生态护坡的建设水平。

The comprehensive evaluation of ecological slope protection is based on the evaluation index and the research method is oriented,which provides the theoretical basis for the ecological construction of the river. The ecological slope protection comprehensive evaluation index system is constructed from the aspects of ecological slope protection safety,ecological environment,suitability and economic benefits. The fuzzy analytic hierarchy process and principal component analysis are used to comprehensively evaluate the ecological slope protection of the Hongqihe area. The results show that the embankment river ecological zone slope protection score of Xitang River is 2. 364;Qianjiabang ecological concrete slope protection score is-1. 936; Cross River port stone pagoda slope protection slope score is 0. 545,which shows that Xitang River embankment river ecological belt performance is good,Which is consistent with the evaluation results obtained by fuzzy analytic hierarchy process. The combination of subjective obscure level and objectivity of principal component analysis can determine more accurately the main factors affecting ecological slope protection.The results reflect the improvement and improvement of ecological slope protection.