an
artificialwetlandaround
a
porphyrycopperminedistrictinTonglushanTownofDayeCity
werestudiedinfieldconditionsandeleHlenttestanalysis.ThestudyrevealsthatP^rng"2ifPsa“5£rnZis
is
resistance
to
toxicheaVymetals.ⅣIeanwhile,
itis
figuredoutthatthatthere
are
twodifferentDartition
patterns
o{toxicheaVymetaluptakeandaccumulationbyP毳,.&g仇ifPs盘“s£rnZi5inthiswetland.
InDarticu—
lar,theconcentrationofCu,Zn,CdintissuesofP^rn97ni£已s口“sfr口Zisf01lowsthesequenceofroot>leaf≥>stem,andtheroottissueconcentratessignificantlyhighCu,Zn,Cdthanstemandleaf.While,Pb,and
Crconcentrationfollowsanothersequenceofroot:>stem:>leaf,which
are
highandpartitioned
evenly
a—
mongroot,stemandleaftissues.
1naddition,bycalculatingthebioaccumulationfactor,theresultshows
thatbioaccumulationabilityoftheP矗,‘以977zi£8s口“s£r口Zi5Variesamongthetissues,andthebioaccumulationabilityoftheroottissuethatispronetoaccumulatePbandCdismuchhigherthanthestemandleaftis—
sues
which
are
easy
toconcentrate。Pb1。。
Keywords:
toxicheaVy
metal;
uptake
and
accumulation
pattern;
bioaccumulation
ability;resistance;
P矗r口977zi£e5口“s£,‘以Zis;wetland
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