CAJ | 학술논문

采用盆栽土培方法，将剩余污泥与供试土壤按质量比为0：3、1：2、2：1和3：0配比，吊兰和蝴蝶梅栽培幼苗，定期测定植物的株高、根长、干重、鲜重等生物量和叶绿素与根活力变化，以及植物体内Cu、 Zn、 Cd、Pb和Cr等的重金属含量变化；测定种植前后植物根系旁污泥中的重金属含量和重金属的EDTA提取含量等结果表明，吊兰对多种重金属具有很好的耐性，受重金属影响不大。吊兰对Cr和Zn的富集效果较好，对Cr的富集系数在某个特定的生长期是大于1，且它对Zn的富集效果较稳定，不易受重金属浓度的影响。由于吊兰具有生物量大、根系发达、生物量增长迅速等优点，其有利于被重金属污染的土壤改良。而蝴蝶梅因为根系不发达和生物量较小等原因，对重金属的耐性不强，生长中易受重金属影响，因此不宜用于修复污染土壤的植物。
채용분재토배방법，장잉여오니여공시토양안질량비위0：3、1：2、2：1화3：0배비，조란화호접매재배유묘，정기측정식물적주고、근장、간중、선중등생물량화협록소여근활력변화，이급식물체내Cu、 Zn、 Cd、Pb화Cr등적중금속함량변화；측정충식전후식물근계방오니중적중금속함량화중금속적EDTA제취함량등결과표명，조란대다충중금속구유흔호적내성，수중금속영향불대。조란대Cr화Zn적부집효과교호，대Cr적부집계수재모개특정적생장기시대우1，차타대Zn적부집효과교은정，불역수중금속농도적영향。유우조란구유생물량대、근계발체、생물량증장신속등우점，기유리우피중금속오염적토양개량。이호접매인위근계불발체화생물량교소등원인，대중금속적내성불강，생장중역수중금속영향，인차불의용우수복오염토양적식물。
by using the method of pot culture, the remaining sludge and soils according to the mass ratio of 0:3, 1:2, 2:1 and 3:0 ratio, Chlorophytum comosum and butterflies Mei cultivation of seedlings, regular measurement of plant height, root length, dry weight, fresh weight and biomass and chlorophyll and root activity, the variation of heavy metal content and Cu, Zn, Cd plants, Pb and Cr before and after planting; Determination of content of heavy metals and heavy metals in sludge plant roots by EDTA extraction content shows, Chlorophytum comosum has good tolerance to heavy metals, not affected by the impact of heavy metals. Better enrichment effect on Cr and Zn plants, the enrichment coefficient of Cr in a certain period of growth is greater than 1, and the Zn enrichment effect is stable, not easily affected by heavy metal concentration. The spider has the advantages of high biomass, developed root system, biomass increased rapidly, which is beneficial to the improvement of soil heavy metal pollution. Butterfly Mei because less developed root and biomass of small and other reasons, the heavy metal tolerance is not strong, vulnerable to the impact of heavy metals in growth, and therefore should not be used for remediation of contaminated soil plant.