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| 郑州市13种绿化带植物中铅质量比的对比研究 |
| Comparison Research on Pb Mass Ratio of 13 Kinds of Green Belt Plants in Zhengzhou |
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| DOI： |
| 中文关键词: 绿化带植物 铅 原子吸收光谱法 郑州 |
| 英文关键词: Green belts plants Pb Atomic absorption spectrometry Zhengzhou |
| 基金项目:河南省高等学校重点科研基金资助项目(15A15008420) |
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| 中文摘要: |
| 利用石墨炉-原子吸收光谱法测定郑州市13种绿化带植物叶片中铅质量比，结果表明：植物叶片中铅质量比范围在0.16 mg/kg～7.65 mg/kg之间。不同空间分布的植物铅质量比差异显著，总体呈现草坪植物＞灌木＞乔木的趋势；同一采样点不同植物叶片铅质量比不同；同一植物不同组织部位铅质量比也不同；其中月季花、金叶女贞、白花三叶草作为铅富集能力较强的绿化带植物，有望成为城市空气铅污染修复的理想植物材料。 |
| 英文摘要: |
| The Pb mass ratio of 13 kinds of representative plants in Zhengzhou green belt were determined by graphite furnace atomic absorption spectrometry. Results showed that the ratio ranged from 0.16 mg/kg to 7.65 mg/kg. The ratio was significantly different among plants in different spatial distribution, and presenting the tendency of herbages＞shrubs＞trees. Different plant had different ratio in the same sampling site, and leaves in different part had different ratio in the same plant. Among all the detected plants, R. chinensis flower, Ligustrum vicaryi and Trifolium repens L. have high Pb accumulation capacity, they are expected to be ideal bio purification plant species for Pb in urban air pollution. |
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