中国科学院大学学报2017，Vol.34Issue(5)：551-557,7.DOI:10.7523/j.issn.2095-6134.2017.05.004
氧化铝赤泥堆场植物多样性
Plant species diversity in bauxite residue disposal areas
摘要
Abstract
Bauxite residue is an alkaline waste by-product generated in the extraction of alumina from bauxite.Due to large volume and inherent environmental risk,the disposal of bauxite residue has become a major concern for sustainable development of the aluminum industry.Bauxite residue poses numerous physical and chemical limitations to plant establishment in disposal areas.Based on the on-the-spot investigation in bauxite residue disposal areas (BRDAs),the important values and indices of plant species evenness and diversity were calculated.A total of 25 species were found naturally colonized in BRDAs.These species belong to 10 families and 22 genera,among which 14 species were annual.Gramineae and Compositae accounted for 52％ of the total species.The plant community in BRDAs showed low species diversity and simple structures.The dominant types of plant community were Chloris virgata Sw.-Cynodon dactylon (L.) Pers community and Corispermum declinatum Steph ex Stev-Setaria viridis (L.) Beauv community.C.dactylon is a dominant species in some BRDAs which grows rapidly and has saline-alkaline tolerance,wide distribution,and a broad ecological amplitude.This species has potential in the revegetation of BRDAs.关键词
赤泥堆场/耐性植物/优势种/多样性指数/生态修复Key words
bauxite residue disposal area/tolerant plant/dominant species/diversity index/ecological restoration分类
资源环境引用本文复制引用
韩福松,王成,薛生国,黄楠,叶羽真..氧化铝赤泥堆场植物多样性[J].中国科学院大学学报,2017,34(5):551-557,7.基金项目
国家自然科学基金(41371475)和国家公益性(环保)行业科研专项(201509048)资助 （41371475）
