摘要
研究测定了部分城市绿化树种对重金属大气铅、镉污染物的吸滞能力。结果表明 :绿化树种对大气铅、镉污染物具有一定的吸收净化能力 ,并依污染气体和树种的不同具有明显差异 ;对铅吸收量高的树种有 :桑树、黄金树、榆树、旱树、梓树 ;吸镉量高的树种有 :美青杨、桑树、旱树、榆树、梓树、刺槐。
The absorption and purification ability of some tree species to heavy metal pollutants,Pb and Cd in the atmosphere are measured and studied.The results show that tree species can absorb and purify Pb and Cd pollutants to some extent,and the absorption and purification ability are obviously different according to different pollutants and tree species.Tree species,which have a high absorption capacity to Pb,includes Morus alba,Catalpa speciosa,Ulmus pumila,Salix matsudana,Catalpa ovata.Tree species which have a high absorption capacity to Cd,includs Populus nigra var.italica ×P.cathayana,Morus alba,Salix matsudana,Ulmus pumila,Catalpa ovata,Robinia pseudoacacia.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
北大核心
2003年第1期51-52,共2页
Urban Environment & Urban Ecology
基金
国家自然科学基金资助项目(39670604)
关键词
绿化树种
大气重金属污染物
吸收净化能力
吸滞能力
Greening tree species
Heavy metal pollutants of the atmosphere
Absorption and purification ability
