| 保定市河道公路绿化树种毛白杨的抗重金属能力 |
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| 引用本文： | 徐学华,黄大庄,王圣杰,王秀彦.保定市河道公路绿化树种毛白杨的抗重金属能力[J].林业科学,2010,46(5). |
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| 作者姓名： | 徐学华 黄大庄 王圣杰 王秀彦 |
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| 作者单位： | 河北农业大学林学院,保定,071000 |
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| 基金项目： | 河北省林业局项目(0803015) |
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| 摘 要： | 对保定市河道公路不同年龄毛白杨根际土壤重金属及毛白杨各器官SOD活性、POD活性、CAT活性、叶绿素含量以及细胞膜透性进行研究。结果表明:河道公路两侧土壤重金属污染严重;污染区毛白杨SOD活性随着年龄增加而降低,POD活性和叶绿素含量随着年龄增加先增加后降低,CAT活性随着年龄的增加变化趋势不一致,而细胞膜透性随着年龄增加变化不明显;污染区不同年龄毛白杨SOD活性、POD活性、CAT活性、叶绿素含量以及细胞膜透性的化感指数变化趋势不一致;采用隶属函数值法对污染区毛白杨抗重金属特性分析得出,不同年龄毛白杨抗重金属能力表现为3年生10年生20年生30年生,表明较大树龄的毛白杨抗重金属的能力有下降趋势。
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| 关 键 词： | 公路 毛白杨 重金属 抗氧化酶 化感指数 |
Resistance of Heavy Metal in Populus tomentosa along Stream Highway |
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| Xu Xuehua,Huang Dazhuang,Wang Shengjie,Wang Xiuyan.Resistance of Heavy Metal in Populus tomentosa along Stream Highway[J].Scientia Silvae Sinicae,2010,46(5). |
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| Authors: | Xu Xuehua Huang Dazhuang Wang Shengjie Wang Xiuyan |
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| Institution: | College of Forestry/a>;Agriculture University of Hebei Baoding 071000 |
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| Abstract: | Heavy metal content in the soil near roots of Populus tomentosa at different ages,and Superoxide dimutase (SOD),Peroxidase(POD),Catalase (CAT),content of chlorophyll,permeability of cell membrane in the poplar various organs were studied. The trees located at sides of a road which was along a river,in Baoding,China. The results showed that the pollution of soil heavy was serious. SOD activity reduced with age of Populus tomentosa grown in the contaminative area. POD activity and content of chlorophyll incre... |
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| Keywords: | highway Populus tomentosa heavy metal anti-oxidative enzyme allelopathic index |
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