应用生态学报2011，Vol.22Issue(8)：1987-1992,6.
铅对山西省路域优势草本植物生长的影响及铅累积特征
Effects of exogenous lead on the growth and lead accumulation characteristics of roadside dominant herbaceous plants in Shanxi Province.
摘要
Abstract
A greenhouse pot experiment was conducted to study the effects of different concentration (0, 500, 1000, 1500 mg · kg-1) lead (Pb) on the growth and Pb absorption and accumulation of 14 roadside dominant herbaceous plants in Shanxi Province. With increasing Pb concentration in the pot, Amaranthus retroflexus and Sorghum bicolorxS. Sudanese appeared obviously toxic symptoms, while the other 12 test plants had higher Pb tolerance, with no significant decrease in their plant height and biomass, compared with control. Chenopodium album and Psathyrostachys juncea had the lowest Pb content (averaged 12. 70 and 11. 33 mg Pb · kg-1, respectively) in their aboveground part and the lowest Pb ratio (0. 12 and 0. 10, respectively) of aboveground part / root, being the potential low Pb-accumulation plants and able to be used for the vegetation restoration of Pb-polluted soil. Red leaf A. Tricolor and green leaf A. Tricolor in treatment 1500 mg Pb ? Kg"1 had the highest Pb accumulation (53.37 and 45.29 mg Pb per 100 plants, respectively) in their aboveground parts, being able to be chosen as the pioneer plants for the remediation of Pb-polluted soil.关键词
铅/路域/草本植物/累积Key words
Pb/ roadside/ herbaceous plant/ accumulation分类
资源环境引用本文复制引用
白彦真,谢英荷..铅对山西省路域优势草本植物生长的影响及铅累积特征[J].应用生态学报,2011,22(8):1987-1992,6.基金项目
山西省科技攻关项目(2006031027)、山西省留学基金项目(2010044)和山西农业大学科技创新基金(2005021)资助. （2006031027）
