摘要
在实验室水培条件下,研究了浮萍、满江红、凤眼莲等水生植物对Pb2+的累积吸收能力。用原子吸收分光光度法对三种植物的水培液中Pb2+的浓度进行了测定,并比较了三种植物对Pb2+的累积吸收能力的大小。结果表明:浮萍对Pb2+的累积吸收能力及抗性最大,满江红次之,凤眼莲最小。在治理轻度铅污染水体时,三种植物均是较好的备选植物,而在治理重度铅污染水体时,应首选浮萍。
The absorptive capacity of Lemna minor, Azoila imbricate and Eichhomia crassipes （ Mart. ） Solms to cumulate Pb2＋ is studied under the water cultivation condition in laboratory. The concentration of Pb2＋ in the water culture environment was measured by the atomic absorption spectrometry, and the cumulating ability of these plants is compared. The result of the study shows that Pb2＋ cumulating and absorption ability was ranked from strong to weak as Lemma minor Linn, Azoila imbricate and Eichhomia crassipes（ Mart. ） Solms. It is proved that all these three plants are effective in treating slight Pb2＋ pollution, while Lemna minor is the best choice to treat serious pollution of Pb2 ＋ .
出处
《扬州职业大学学报》
2009年第4期33-35,共3页
Journal of Yangzhou Polytechnic College
关键词
PB2+
污染
浮萍
满江红
凤眼莲
原子吸收分光光度法
Pb2 ＋
pollution
Lemna minor
Azoila imbricate （Roxb）
Eichhomia erassipes （ Mart. ） Solms
atomic absorption spectrometry
