| 树叶中重金属含量及其指示大气污染的研究 |
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| 引用本文： | 王爱霞,张敏,方炎明,王四川.树叶中重金属含量及其指示大气污染的研究[J].林业科技开发,2008,22(4). |
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| 作者姓名： | 王爱霞 张敏 方炎明 王四川 |
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| 作者单位： | 1. 南京林业大学森林资源与环境学院,南京,210037
2. 南京林业大学森林资源与环境学院,南京,210037;江苏省林业科学研究院 |
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| 基金项目： | 林业科技支撑计划专题资助项目，江苏省林业科学研究院青年基金 |
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| 摘 要： | 通过对南京市区交通流量大的区域和相时清洁区(江苏省林科院)不同植物叶片重金属元素(Pb、Cd、Cu)含量的分析,研究了大气污染指数,初步探讨了植物重金属含量与城市大气污染之间的关系.研究表明.植物叶片中重金属Pb、Cd和Cu的累积量与大气中Pb、Cd和Cu的相对含量呈显著正相关;所调查绿化树种叶片的重金属含量因重金属种类、采样区和树种的不同具有明显差异,悬铃木叶片累积Pb的能力最强,而杨树叶片对Cd和Cu的累积能力最强.市区大气重金属质量状况为:交通枢纽区中央门、南京化工厂和沪宁高速属于重污染,生活区新庄属于中轻度污染,远郊林科院属于无污染区.
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| 关 键 词： | 重金属 大气污染 绿化树种 |
The Content of Heavy Metals(Pb,Cd,Cu)in Lesves of Urban Trees and Its Indicatory Function in Air Pollution Evaluation in Nanjing Region |
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| WANG Ai-xia,ZHANG Min,FANG Yan-ming,WANG Si-chuan.The Content of Heavy Metals(Pb,Cd,Cu)in Lesves of Urban Trees and Its Indicatory Function in Air Pollution Evaluation in Nanjing Region[J].China Forestry Science and Technology,2008,22(4). |
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| Authors: | WANG Ai-xia ZHANG Min FANG Yan-ming WANG Si-chuan |
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| Abstract: | In order to explore the relationship between content of heavy metals in leaves of plants and air pollution,the Pb,Cd and Cu content in leaves of plants and the index of air pollution from the heavy traffic roads and Jiangsu Academy of Forestry(as a control) in Nanjing region were determined in this paper.The results showed that Pb,Cd and Cu in the leaves of plants were positively related to their concentration in air significantly.The content of heavy metal in plant leaves was obviously associated with the heavy metal properties,pollution conditions and tree species.Platanus hispanica had a higher accumulation in Pb,While Populus deltoides in Cd and Cu.Totally,the pollution of atmospheric heavy metals in Nanjing urban regions investigated was in order: in the traffic hinge region(Zhongyang Men) > in residential area(Xinzhuang) > in control region(Jiangsu Academy of Forestry). |
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| Keywords: | Heavy metals Atmospheric pollution Virescence trees |
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