铜、铅污染对翦股颖和高羊茅生理的影响  

Effect of Cu and Pb pollution on physiologicalindexes of Agrostis stolonifera and Festuca arundinacea

作　　者：王艳[1] 鄂巍[1] 吴丹[1] 

机构地区：[1]沈阳师范大学化学与生命学院,辽宁沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2005年第1期74-77,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省科技厅博士启动基金资助项目(20031029).

摘　　要：研究了土壤中不同浓度Cu、Pb及其联合作用对翦股颖和高羊茅生理指标的影响.结果表明,土壤中的Cu、Pb污染使2种草的叶绿素浓度、光合作用均呈下降趋势.在一定浓度的Cu、Pb胁迫下,翦股颖中的SOD活性升高,但浓度过大时,SOD活性则下降.高羊茅在不同程度的Cu污染胁迫下,SOD活性呈先上升后下降的趋势,而在Pb、Pb和Cu复合污染作用条件下,SOD活性均呈下降趋势.Physiological indexes of Agrostis stolonifera and Festuca arundinacea influenced by soil pollution of Cu and Pb were investigated.Cu and Pb pollution reduced the chlorophyll concentration and photosynthesis ability.SOD activity of Agrostis stolonifer was improved under a certain Cu and Pb concentration.SOD activity of Festuca arundinacea under the Cu pollution had the same tendency,but single pollution of Pb and associated pollution of Pb and Cu made the SOD activity of Festuca arundinace decreased.

关 键 词：重金属 草坪植物 生理指标 

分 类 号：X171.5[环境科学与工程—环境科学]