西北林学院学报2011，Vol.26Issue(4)：64-68,74,6.
金安桥水电站弃渣场植被恢复物种多样性研究
Species Diversity During Vegetation Restoration in Dumping Pile of Jin'anqiao Hydropower Station
摘要
Abstract
Species diversity during vegetation restoration in dumping pile in Jin'anqiao Hydropower Station were investigaed sampling method.Five typical plots were selected.Species richness, species diversity, and the evenness of community were comprehensively calculated by using richness index(S), Shannon-Wiener index(H), Simpson index(D')and evenness index(JH).Meanwhile, the relationship between the important value of the main species and species diversity were studied.The results showed that the communities in Wulanggou dumping pile, in terms of the species diversity, ranked in the descendent order of Rumex hastatus-Mimosa pudica +Achnatherum association, Rumex hastatus-Heteropogon contortus association,Rumex hastatus-Bidens pilosa var.radiata association,Rumex hastatus-Bothriochloa pertusa association,Rumex hastatus-Achnatherum association.According to the evenness of association, they ranked in the descendent order of Rumex hastatus-Mimosa pudica +Achnatherum association, Rumex hastatus-Heteropogon contortus association,Rumex hastatus-Bothriochloa pertusa association, Rumex hastatus-Bidens pilosa var.radiata association, Rumex hastatus-Achnatherum association.Importantce value of the early vegetation in Wulanggou dumping pile deomstrated that the areas was mainly dominated by shrubs.The importance value of shrubs in the fluctuations all over the sample showed that the relative position of some shrubs caused unstable factors, which headed for a recession.To solve this problem, its dominant position could be maintained by human disturbance and to increase species diversity.The importance value of herbal, however, showed an upward trend with its niche gradually increasing.关键词
水电站/弃渣场/植被恢复/物种多样性Key words
hydropower station/ dumping site/ vegetation rehabilitation species diversity分类
农业科技引用本文复制引用
马炜,陈奇伯,卢炜丽,张仕艳,雷俊杰..金安桥水电站弃渣场植被恢复物种多样性研究[J].西北林学院学报,2011,26(4):64-68,74,6.基金项目
国家自然科学基金(31060093) （31060093）
云南省应用基础研究计划面上项目(20070065M) （20070065M）
西南林业大学生态学重点学科(XKX200902) （XKX200902）
西南林学院重点科研基金项目(200509Z). （200509Z）
