井陉县大青山野皂荚群落植物组成及多样性分析

Analysis on plant composition and diversity of Gleditsia microphylla community in Daqing Mountain,Jingxing County

为研究井陉县大青山地区野皂荚群落植物组成和多样性特征,以太行山中部井陉县低山区的野皂荚群落为研究对象,采用样方法,分析群落植物组成和多样性特征。结果表明,井陉县大青山地区野皂荚群落共有植物30种,隶属于19科28属;从植物组成来看,调查样地植物种类较多的是禾本科、豆科和菊科;植物优势种为鹅耳枥、野皂荚、荆条、中亚苔草和中华卷柏;从多样性指数来看,灌木层和草本层多样性指数、丰富度均高于乔木层;而乔木层的均匀度和优势度均高于灌木层和草本层。

In order to study the plant composition and diversity characteristics of Gleditsia microphylla community in Daqing Mountain area of Jingxing County,the study took G.microphylla community in the low mountainous area of Jingxing County in the middle of Taihang Mountain as the research object,used the sampling method to analyze the plant composition and diversity characteristics of the community,which provided a theoretical basis for the ecological restoration,development and utilization of G.microphylla shrub.The results showed that there were 30 species of G.microphylla community in Daqing Mountain area of Jingxing County,belonging to 19 families and 28 genera.In terms of plant composition,Poaceae,Gramineae,Leguminosae and Asteraceae,the dominant species were Carpinus turczaninowii,Gleditsiamicrophylla,Vitex negundo,Carex and Selaginella sinensis.In terms of diversity index,the diversity index and richness of shrub layer and herb layer were higher than those of tree layer.The evenness and dominance of tree layer were higher than those of shrub layer and herb layer.