CAJ | 학술논문

采用温室盆栽试验，研究堆肥污泥对两个杨树品种[凌丰三号（ Populus×euramaricanacl‘Lingfeng 3’）和欧美杨108号（Populus×euramericana‘Guariento’）]幼苗各部分重金属富集变化的影响，并分别设置低量污泥（15 t· hm－2，LS）、中量污泥（30 t· hm－2，MS）、高量污泥（60 t· hm－2，HS）和对照（不施污泥，CK）4个处理。结果表明：堆肥污泥对杨树幼苗Cu、Zn、As、Hg和Cd重金属富集变化的影响显著，且因品种、污泥用量、生长时期和植物各部分而异。 Cu、Zn、As、Hg 4种重金属则主要富集于根部，而Cd则主要富集于叶部，即由大到小的顺序，Cu、Zn和As的富集基本特征均为根、叶、茎， Hg 基本表现为根、茎、叶，而Cd基本表现为叶、根、茎。随着污泥用量的增加，在植物叶、茎和根部重金属富集态势大部分呈现递增趋势，且在根部表现尤为明显。速生杨植物修复污泥的重金属污染以及合理处置污泥，都将可能不失为一种有效措施。
채용온실분재시험，연구퇴비오니대량개양수품충[릉봉삼호（ Populus×euramaricanacl‘Lingfeng 3’）화구미양108호（Populus×euramericana‘Guariento’）]유묘각부분중금속부집변화적영향，병분별설치저량오니（15 t· hm－2，LS）、중량오니（30 t· hm－2，MS）、고량오니（60 t· hm－2，HS）화대조（불시오니，CK）4개처리。결과표명：퇴비오니대양수유묘Cu、Zn、As、Hg화Cd중금속부집변화적영향현저，차인품충、오니용량、생장시기화식물각부분이이。 Cu、Zn、As、Hg 4충중금속칙주요부집우근부，이Cd칙주요부집우협부，즉유대도소적순서，Cu、Zn화As적부집기본특정균위근、협、경， Hg 기본표현위근、경、협，이Cd기본표현위협、근、경。수착오니용량적증가，재식물협、경화근부중금속부집태세대부분정현체증추세，차재근부표현우위명현。속생양식물수복오니적중금속오염이급합리처치오니，도장가능불실위일충유효조시。
By a pot experiment in greenhouse, with Populus×euramaricanacl‘Lingfeng 3’ and Populus×euramericana‘Guarien-to’, we studied the effect of composted sewage sludge (CSS) on the changes of heavy metal accumulations in different plant parts.There were four treatments including three different dosage CSS of 15 t· hm-2( LS) , 30 t· hm-2( MS) , 60 t· hm-2( HS) and control ( no application of sewage sludge, CK) .The application of CSS significantly influenced the changes of copper (Cu), zinc (Zn), arsenic (As), mercury (Hg) and cadmium (Cd) accumulations of poplar seedlings, and varied with the varieties, sludge dosages, growth period and the parts of plants.Cu, Zn, Hg and As mainly enriched in the roots, while Cd was mainly in leaves.The basic features of accumulated metals (Cu, Zn and As) in the plants were in the order of root>leaf>stem, and Hg and Cd were basically in the order of root>stem>leaf and leaf>root>stem, respectively. With an increase in the amount of CSS, heavy metal accumulations in the leaf, stem and root mostly presented the increas-ing trend and especially significant in the root.Therefore, the phytoremediation of heavy metal pollution in sewage sludge and the appropriate disposal of sewage sludge by using poplar would be effective measures.