摘要
[目的]研究江西省吉安市不同区域绿化植物对大气铅、锌污染物的吸收能力。[方法]采用原子吸收法,测定6个区域10种绿化植物叶片铅、锌含量。[结果]在所调查6个区域中,10种绿化植物叶片铅、锌含量较高的在井冈山大道,含量最低的在井冈山大学校园内,各区域不同植物叶片的铅、锌含量差异显著。10种绿化植物对大气铅、锌污染物均具有一定的吸收净化能力,并依污染物和植物种类的不同差异明显:对铅吸收量最高的植物为圆柏和雪松,分别为4.84mg/kg和4.57mg/kg,最低为海桐,为0.38 mg/kg;对锌吸收量最高的植物为日本女贞,为37.58mg/kg,最低为小叶黄杨,为11.08mg/kg。[结论]井冈山大学、天龙花园和白鹭洲公园为铅、锌无污染区;污水处理厂、松吉化工有限公司为铅、锌轻度污染区;井冈山大道为铅中度污染区、锌轻度污染区。
[ Objective ] Absorption ability of greening plants leaves to Pb and Zn in different regions in Jian City of Jiangxi Province was studied. [ Method ] Using atomic absorption method, the contents of Pb and Zn in 10 kinds of greening plants was measured in 6 regions.[ Result ] The results showed that content of Pb and Zn in 10 kinds of greening plants in Jinggangshan Road was the highest, and the lowest in Jinggangshan University, they had obvious difference among 6 different regions. The plants could absorb Pb and Zn pollutants in different extent depending on pollutants and plant species. Cedrus deodaru and Sabina chinensis had higher absorption capacity to Pb with 4.84 mg/kg and 4.57 mg/kg, Pittoaporum tobira had the lowest absorption capacity to Pb with 0.38 mg/kg; Ligustrum japonicum had the highest absorption capacity to Zn with 37.58 mg/kg, Buxus microphylla had the lowest absorption capacity to Zn with 11.08 mg/kg. [ Conclusion] There were no pollution of Pb and Zn in Jinggangshan University, Tianlong Garden and Bailuzhou Park, and low-grade pollution in sewage factory, and Songji chemical plant, middling pollution of Pb and low-grade pollution of Zn in Jinggangshan Road.
出处
《安徽农业科学》
CAS
北大核心
2009年第29期14137-14139,14159,共4页
Journal of Anhui Agricultural Sciences
基金
江西省教育厅青年自然科学基金项目(GJJ09592)
井冈山大学自然科学基金项目(JZ0724)
关键词
植物叶片
重金属污染
吸收能力
Plant leaf
Heavy metal pollution
Absorption ability
