嵯峨山采石矿山废弃地人工植被恢复植物群落特征

Plant Community Characteristics in Artificial Vegetation Restoration of Quarry Mine Wasteland in Cuo E Mountain

以嵯峨山采矿废弃地人工恢复植被和自然植被为研究对象,采用样方法对植物进行了调查,计算了物种重要值和多样性指数,分析了不同恢复年限的人工植物组成和物种多样。结果表明:在人工恢复地和自然地共出现植物为14科43属49种,其中菊科11属14种、豆科5属12种、禾本科9属10种,这3科植物适应能力强,总体表现为单属单种植物较多;群落中紫御谷、紫穗槐、刺槐和胡枝子重要值(Ⅳ)表现最高;修复1年的植被的多样性指数最高,但均匀度指数最低,随着年限的增加,多样性指数降低,但均匀度指数增加。研究结果可为干旱地区植被恢复和植物配置选择提供理论依据。

In this study,artificial restoration vegetation and natural vegetation of quarry mine wasteland in Cuo E Mountain were taken as the research objects.The species of plant were investigated by sample method,and the species importance value and diversity index were calculated.The composition and species diversity of the herb layer under different artificial vegetation restoration were analyzed.The results showed①there were 49 species of herbaceous plants belonging to 43 genera and 14 families in quarry mine wasteland,among them,24 species belonging to 11 genera of Compositae,12 species belonging to 5 genera of Leguminosae and 10 species belonging to 9 genera of Poaceae.The adaptability of these 3 families was strong,and there were more single genus and single species.②The important values(IV)of Pennisetum glaucum.,Amorpha fruticosa L.,Robiniapseudoacacia L.and Lespedeza bicolor Turcz were the highest in the community.③The diversity index of the vegetation that has been restored for one year is the highest,but the evenness index is the lowest.With the increase of years,the diversity index decreases,but the evenness index increases.The results provide theoretical basis for the vegetation restoration and the selection of vegetation restoration species in arid areas.