摘要
Itisimportanttounderstandseasonalheavymetalaccumulationindifferentpartsofplantsinordertodevelopthebestphytoremediationpracticesforcontaminatedsoils.Forthispurposeweexposed,1yearoldA.victoriaeseedlingstoZnSO4in4differentconcentrations:0,50,250and500mgZnL-1for45daysovertwogrowingseasons.Subsequently,bioaccumulationofZnindifferentplanttissues（roots,shootsandleafs）wasassessedbyAtomicAbsorptionSpectroscopy（AAS）fortwoperiods.Inaddition,variousgrowthattributes（drybiomass,shootandrootlengths,plantappearance）andfunctionaltraits（leafarea,chlorophylla,bandtotal）weremeasured.TheaccumulationofZnwasinfluencedbytheZnconcentrationinthegrowthmediumandthenumberofgrowingseasons.TheamountsofZnconcentratedintheroottissuesmightindicateA.victoriaeasagoodoptionforphytostabilizationofsoilscontaminatedbyZn.WerecommendthatifA.victoriaeisusedforphytoextractionpurposes,thenitshouldbeharvestedattheendofthefirstgrowingseason（fall）becauseatthistimetheconcentrationsofZnintheabove-groundpartswillbemaximal.
出版日期
2015年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
