川九公路震损边坡生态恢复效果分析与评价  

Effect Analysis and Evaluation on Ecological Restoration of Post-earthquake Slopes along Chuanzhusi-Jiuzhaigou Highway

作　　者：蒋瑜阳 王晓文 谭昌明 孙大远 李俊卓 JIANG Yu-yang;WANG Xiao-wen;TAN Chang-ming;SUN Da-yuan;LI Jun-zhuo(Sichuan Highway Planning,Survey,Design and Research Institute Co.,Ltd.,Chengdu Sichuan 610000,China)

机构地区：[1]四川省公路规划勘察设计研究院有限公司,四川成都610000

出　　处：《公路交通科技》2023年第10期208-215,共8页Journal of Highway and Transportation Research and Development

基　　金：四川省重大科技专项课题项目(2018SZDZX0032);四川省交通运输科技项目(2021-WX-07)。

摘　　要：为评估震后受损边坡生态恢复工程效果,基于震损边坡人工构造与坡面系统的协同稳定,构建了震损边坡生态恢复效果评价系统架构。通过调查研究,从植物群落、土壤和系统稳定性3个方面提出了包括植被覆盖度、生物多样性、乡土性、景观协调性、土壤有机质、养分含量、阳离子交换量、系统抗蚀性、植物系统病虫害发生率及构架系统稳定性等16项评价指标的多层次评价体系,并给出了优、良、一般、差、极差5个等级的评价等级标准和分级区间。最后采用层次分析法(AHP)赋予各层次评价指标的相对权重,结合多级模糊综合评价法建立了评价模型,将该评价模型应用于川九公路沿线不同类型震损边坡生态恢复工程的效果评价中。结果表明:AHP-模糊综合评价法均衡考虑了各项指标的不同贡献,一级指标的权重排序为系统稳定性>植物群落>土壤,其中系统稳定性的权重值为0.53,二级指标中系统抗蚀性的总权重值最大为0.29;试验边坡I的生态恢复效果评价结果为优,边坡II的效果评价结果为良,边坡I的生态恢复效果比边坡II理想,其综合评价结果与现场实际情况相符合,比较客观地反映了边坡生态恢复工程效果状况,具有较强的适用性和有效性。To evaluate the ecological restoration effects of post-earthquake slopes,the evaluation system architectures of ecological restoration effects of post-earthquake slopes is established based on the synergistic stability between artificial structure and slope system.A comprehensive evaluation system is proposed by investigation in 3 aspects:plant community,soil quality,and system stability,which include vegetation coverage,biodiversity,native species presence,landscape coordination,soil organic matter,nutrient levels,cation exchange capacity,system erosion resistance,plant diseases,and structural system stability.Additionally,the standard of evaluation and grade interval classification are put forward.The relative weight of each indicator is calculated by using the Analytic Hierarchy Process(AHP),and the effect evaluation model is established by integrating the multi-level fuzzy comprehensive evaluation method,which applied to evaluate different post-earthquake slopes along Chuanzhusi-Jiuzhaigou Highway.The result shows that(1)The AHP-fuzzy comprehensive evaluation method have a balanced consideration for the different contributions of each indicator,the weights of first grade indicators are ranked as system>plant community>soil,where the weight value of system stability is 0.53,and the total weight value of system erosion resistance is the largest in the second grade indicators,which is 0.29.(2)The evaluation result of ecological restoration effect of slope I is excellent,and that of slope II is good,the ecological restoration effect of slope I is better than that of slope II.The comprehensive evaluation result is in line with the actual situation,which objectively reflects the effect of slope ecological restoration engineering and have strong applicability and effectiveness.

关 键 词：环境工程 效果评价 AHP模糊综合评价法 震损边坡 生态恢复 

分 类 号：U418.9[交通运输工程—道路与铁道工程]