500μm、100~500μm,、50~100μm,、2~50μm、<2μm5個粒級,測定每一個粒級土壤的低頻磁化率(χlf)和高頻磁化率(χhf),用BCR連續(xù)提取法對5個粒級及未分級土樣中的Pb和Cd賦存形態(tài)進(jìn)行分析,并計算各粒級土壤污染負(fù)荷指數(shù)(PLI)和頻率磁化率(χfd)等參數(shù),以此探討不同粒級土壤磁性與Pb和Cd含量,、形態(tài)及PLI的關(guān)系." />

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锟斤拷锟絭锟絟(hu锟斤拷n)锟斤拷锟絎(w锟斤拷ng) > 水處锟斤拷 > 锟斤拷Q锟斤拷锟斤拷 > 锟斤拷锟斤拷

锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷锟脚伙拷锟斤拷锟絚锟截斤拷锟斤拷锟斤拷染锟斤拷锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟絇(gu锟斤拷n)系

锟斤拷锟铰時锟絞锟斤拷2016-01-21 10:49 锟斤拷源锟斤拷锟絟(hu锟斤拷n)锟斤拷锟斤拷锟教學(xu锟斤拷)锟斤拷 锟斤拷锟斤拷: 锟斤拷x锟斤拷2499 锟絎(w锟斤拷ng)锟斤拷锟絬論0锟絣

摘要:

锟缴硷拷锟絴锟斤拷省锟斤拷锟絁锟絬锟絓锟絊锟斤拷邊锟絩(n锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟,锟斤拷锟斤拷譃锟>500μm,锟斤拷100~500μm,锟斤拷50~100μm锟斤拷2~50μm,锟斤拷<2μm5锟斤拷锟斤拷锟斤拷,锟統锟斤拷每一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥碉拷锟絣锟脚伙拷锟斤拷(χlf)锟酵革拷锟絣锟脚伙拷锟斤拷(χhf),锟斤拷BCR锟紹锟絤(x锟斤拷)锟斤拷取锟斤拷锟斤拷5锟斤拷锟斤拷锟斤拷锟斤拷未锟街硷拷锟斤拷锟斤拷锟叫碉拷Pb锟斤拷Cd锟絰锟斤拷锟轿態(t锟斤拷i)锟組(j锟斤拷n)锟叫凤拷锟斤拷,锟斤拷計锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺矩(f锟斤拷)锟斤拷指锟斤拷(sh锟斤拷)(PLI)锟斤拷锟絣锟绞磁伙拷锟斤拷(χfd)锟饺咃拷锟斤拷(sh锟斤拷),锟皆达拷探討锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絚Pb锟斤拷Cd锟斤拷锟斤拷,锟斤拷锟轿態(t锟斤拷i)锟斤拷PLI锟斤拷锟絇(gu锟斤拷n)系.锟結(ji锟斤拷)锟斤拷锟斤拷锟斤拷,锟斤拷锟斤拷<100μm锟絩,锟絊锟斤拷锟斤拷锟絧小,锟斤拷锟斤拷锟斤拷Pb锟斤拷Cd锟斤拷锟斤拷锟斤拷PLI,锟斤拷χfd锟斤拷锟斤拷锟斤拷;锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Pb锟侥匡拷還原锟紹(t锟斤拷i)(F2)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿態(t锟斤拷i),锟斤拷Cd锟斤拷锟斤拷锟斤拷锟斤拷軕B(t锟斤拷i)(F1)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿態(t锟斤拷i);未锟街硷拷锟斤拷锟斤拷锟斤拷Pb锟斤拷锟斤拷,锟斤拷Cd锟斤拷锟斤拷锟斤拷PLI锟絚χlf锟斤拷χfd锟斤拷锟斤拷锟紷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟斤拷,锟揭撅拷锟斤拷0.05水平锟斤拷锟斤拷锟斤拷;锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Pb锟斤拷Cd锟斤拷F2锟斤拷锟斤拷锟絚χlf锟斤拷χfd锟斤拷PLI锟斤拷锟斤拷锟絖(d锟斤拷)0.01水平锟紷锟斤拷锟斤拷锟絇(gu锟斤拷n),锟斤拷锟紷锟斤拷锟皆撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿態(t锟斤拷i)锟斤拷锟斤拷锟絚χlf,锟斤拷χfd锟斤拷PLI锟斤拷锟紷锟斤拷锟斤拷.

 

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