期刊论文

Plant diversity and its heavy metal enrichment investigation in a leadzinc tailings in Hengyang city of Hunan province

中文

中南林业科技大学学报

1673-923X

2017

37

7

130-135

10.14067/j.cnki.1673-923x.2017.07.020

201509037:环保公益性行业科研专项 2016-16:湖南省省级环境保护专项资金环保科技项目 2013ZX07504001:水体污染控制与治理科技重大专项 :湖南省环境科学与工程重点学科建设项目

本校为第一机构

本研究以衡阳市某铅锌矿尾矿区为样地,首先选取了10个样方,进行多样性统计,然后,选取样地中长势良好且具有多度和频度优势的植物分析重金属的富集性。研究结果表明:(1)样地内共出现植物15科41种,多为草本植物,禾本科和菊科植物为优势植物,两者占草本种数的60%。(2)采样地植物种类较为稀少,群落组成结构单一,物种多样性水平不高,生态较为脆弱,其中,各样方中样方四的植物多样性最佳,丰富度指数R,均匀度指数E以及多样性指数H均为最高,也仅分别为2.299、0.724、1.813。(3)3个采样点中不同深度土壤中重金属Pb、Zn、Cu的含量进行显著差异性分析,Pb、Zn的分布呈现出0 ~ 10 cm剖面与另外的5个剖面都有显...

In this research, lead zinc mine tailing pond in Hengyang city was taken as sample plot. At first, 10 plots were selected by diversity statistics. Then the plant which grows well and has advantages of abundance and frequentness were selected to analyze the heavy metal enrichment. The results showed that: There were 15 families, 41 species in the sample area. They are mostly herbaceous species. The dominant were the Gramineae and Compositea plants, both accounting for 57% of the herbaceous species.Relatively rare plant species in sample area, community composition and structure was simple, the ...