高寒干旱区观赏植物的重金属富集特征研究  

Study on the accumulation characteristics of heavy metal in ornamental plant species in alpine arid areas

作　　者：段杰 罗少辉[1,2] 盛海彦 

机构地区：[1]青海大学农牧学院,青海西宁810016 [2]青海省雷电灾害防御中心,青海西宁810001

出　　处：《环境污染与防治》2017年第9期967-970,975,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.41461077);青海省科学技术研究项目(No.2009-J-803)

摘　　要：对适宜在青海高寒环境下生长的12种观赏植物进行了研究。结果表明:参试的12种观赏植物中,对镉和锌积累量较大的植物有红花(Carthamus)、荷兰菊(Aster novi-belgii)和3种向日葵(Helianthus annuus)。其中,多花向日葵对镉的净化率最高,为3.56%,其次是红花(3.47%);对锌净化率最高的是红花,为0.66%,其次为多花向日葵(0.65%)。因此,红花与向日葵可作为绿化带种植首选的修复植物。12 ornamental plant species historically grown well in the cold climate and high altitude environment were conducted in Qinghai Province. Results indicated that Carthamus,Aster novi-belgii and 3 kinds of Helianthus annuus achieved higher purifying rate of cadmium and zinc than others,and the maximum purifying rate of cadmium was 3.56%,which was occurred in the Helianthus annuus with many flowers,followed by Carthamus( 3.47%). Furthermore,the highest purifying rate of zinc was 0.66%,which was observed in Carthamus,followed by Helianthus annuus with many flowers( 0.65%). As a consequence,Carthamus and Helianthus annuus were considered as the preferred plant species for remediation in green belt.

关 键 词：高寒干旱区 观赏植物 重金属 富集 

分 类 号：X173[环境科学与工程—环境科学]