基于层次分析和模糊综合评判的尾矿库植物群落评价  

Assessment of Plant Community around Baotou LREE Tailings Reservoir Based on AHP and Fuzzy Comprehensive Evaluation Method

作　　者：于晓燕 宋宇辰[1] 魏光普 肖凤洁 高耀辉 YU Xiao-yan;SONG Yu-chen;WEI Guang-pu;XIAO Feng-jie;GAO Yao-hui(Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学,内蒙古包头014010

出　　处：《稀土》2020年第5期70-79,共10页Chinese Rare Earths

基　　金：内蒙古自治区自然科学基金项目(2018LH07002,2017MSLH0305);内蒙古科技大学创新启动基金项目(2017QDL-S05);内蒙古自治区研究生(博士重点)创新基金项目(B20171012904Z)。

摘　　要：以最具代表性的稀土污染城市植物群落-包头轻稀土尾矿库周边植物景观为研究对象,将该区域分为5个研究地块,进行实地调查,并采用AHP(层次分析法)和综合模糊评判法从植物群落生态修复方面进行评价,计算指标层各因素的权重后加权计算各样地的综合评价得分并排序,以期为轻稀土污染城市的植物景观改造和建设提供参考。结果表明:轻稀土尾矿库周边共有植物30科、70属、101种,经问卷调查得出尾矿库周边群落模糊综合评判结果均为中,土壤生态恢复植物群落特征评价S2区综合得分最高为0.326,其次为S3区得分为0.304,S5区得分最低为0.278,评价结果S5区为Ⅰ级,其余均为Ⅱ级,说明人工植物群落的修复效果和稳定性均优于自然植物群落,自然植物群落演替不能有效的改善土壤生态环境。Taking the plant landscape around Baotou light rare earth element(LREE)tailings reservoir,the most representative rare earth polluted urban plant community as the research object,this area is divided into five research plots,and field investigation is carried out.AHP(Analytic Hierarchy Process)and comprehensive fuzzy evaluation method are used to evaluate the ecological restoration of plant communities,and corresponding optimization countermeasures are put forward to solve the existing problems,in order to provide a reference for the plant landscape reconstruction and construction of the city pollution by LREE.The results show that there are 101 species of plants in 30 families,70 genera and 101 species in the vicinity of the tailings pond.The results of the questionnaire survey show that the fuzzy comprehensive evaluation of the community around the tailings pond is moderate.The highest comprehensive score is 0.326 in S2 area,followed by 0.304 in S3 area,and the lowest score is 0.278 in S5 area.The evaluation results show that S5 area is grade I and the rest are grade II.The restoration effect and stability of the man-made plant communities are better than that of natural plant communities,and the succession of natural plant communities cannot effectively improve the soil ecological environment.

关 键 词：AHP 模糊综合评判 轻稀土尾矿库 植物群落 生态修复 

分 类 号：S731.6[农业科学—林学]