湖南省铅锌尾矿污染区植被修复适生植物选择研究

摘要

Phytoremediation is a very effective way to remedy heavy metal polluted site. The investigations and tests on vegetation and plants of Qiaokou & Yongxing Peng lead-zinc tailings area in Zixing city, Hunan shows that: ①Herbs have perfect ability to adapt lead-zinc tailings contaminated land; ②Absorption capacity of heavy metals by plants are mutually influenced by genetic factor and environment domestication;③Caulis Fici Tikouae, Lespedeza bicolor Turc. and Lolium perenne L. have perfect ability of migrating and gathering Pb and zinc, and could be used for ecological restoration at Pb and zinc pollution site.%植物修复技术是重金属污染场地修复十分有效的方法。本研究通过调查、测试湖南资兴市东江湖桥口和永兴棚铅锌尾矿污染区的植物与土壤，分析得出：淤草本植物对铅锌尾矿污染土地有强适应能力；于植物对重金属吸收能力受遗传特性与环境的驯化共同影响；盂地枇杷、胡枝子和黑麦草分别对Pb和Zn有较强的迁移能力和富集能力，可用于Pb和Zn污染地区的生态修复。