生态与农村环境学报2025，Vol.41Issue(5)：639-650,12.DOI:10.19741/j.issn.1673-4831.2024.0509
山西尖山铁尾矿坝复垦地不同人工植被下草本植物群落特征
Characteristics of Herbaceous Plant Communities under Different Revegetation Types on a Reclaimed Tailing Dam of Jianshan Iron Mine in Shanxi
摘要
Abstract
The revegetation of iron mine tailing dams is currently an active research topic in ecological restoration globally.Studying the characteristics of herbaceous plant communities under different revegetation types and screening for herbaceous plant species suitable for the ecological restoration of tailing dams are of great significance for improving the ec-ological restoration effect of revegetation.The characteristics of herbaceous plant communities under different revegetation types on a reclaimed tailing dam of Jianshan iron mine in Shanxi,China,were studied using two-way indicator species a-nalysis(TWINSPAN)classification,canonical correspondence analysis(CCA)ordination,M.Godron stability analysis,species diversity index,and interspecific relationships.The TWINSPAN classification was used to divide 96 quadrats of herbaceous plant communities under different revegetation types in the study area into 11 associations,and the characteris-tics of each association varied significantly due to different restoration years and revegetation combinations.With increasing restoration years,the life forms of herbaceous plant species under different revegetation types gradually changed from xero-phyte to mesophyte,and the number of perennial plant species increased significantly.The CCA ordination results show the gradient change in grazing disturbance to different herbaceous plant communities and the soil moisture content with increas-ing restoration years.That is,the degree of grazing disturbance to the communities gradually decreased,while the soil moisture content gradually improved from left to right along the first axis of DCA.Furthermore,restoration years gradually increased from the bottom to the top along the second axis of CCA.These results indicate that the habitat conditions of the iron mine tailing dam gradually improved with increasing restoration years.The trend of changes in species diversity and community stability was consistent.Restoration years,revegetation types,the degree of grazing disturbance,and soil mois-ture were the major environmental factors affecting the characteristics of herbaceous plant communities under different re ve-getation types.The planted grasslands of Medicago sativa(belonging to the legume family)and Agropyron desertorum(be-longing to the Gramineae family)were severely degraded due to the high degree of grazing disturbance and the deficiency of soil moisture;therefore,scientific management and protection policies should be strengthened in the future.The follow-ing dominant species pairs showed significant positive correlations:Caragana korshinskii and Hippophae rhamnoides,and Bothriochloa ischaemum and Cleistogenes squarrosa.Re vegetation using these species pairs for mixed planting is therefore recommended for the future restoration of abandoned tailing dams of iron mines in this area.关键词
铁尾矿坝复垦地/草本植物/分类与排序/物种多样性/群落稳定性Key words
reclaimed tailing dam of iron mine/herbaceous plant/classification and ordination/species diversity/com-munity stability分类
生物学引用本文复制引用
韩锦涛,李素清,张云芳..山西尖山铁尾矿坝复垦地不同人工植被下草本植物群落特征[J].生态与农村环境学报,2025,41(5):639-650,12.基金项目
国家自然科学基金(41271531) （41271531）
山西省国际科技合作项目(2012081010) （2012081010）
