| 多环芳烃对2种南方绿化树种生长的影响 |
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| 引用本文： | 朱凡,田大伦,闫文德,王光军,郑威,梁小翠.多环芳烃对2种南方绿化树种生长的影响[J].中南林业科技大学学报,2008,28(6). |
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| 作者姓名： | 朱凡 田大伦 闫文德 王光军 郑威 梁小翠 |
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| 作者单位： | 中南林业科技大学生态教研室 |
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| 基金项目： | 国家自然科学基金，国家林业局引进国际先进农业科学技术计划(948计划)，湖南省科技厅重点项目，湖南省杰出青年科学基金，中南林业科技大学青年科研基金 |
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| 摘 要： | 采用盆栽实验,研究了3种多环芳烃污染水平(重度L3:371.79 mg.kg-1)、(中度L2:186.35 mg.kg-1)、(轻度L1:77.79 mg.kg-1)下对1年生南方绿化树种广玉兰Magnolia grandiflora和马褂木Liriodendron chinense生长的影响.结果表明:2种绿化树种均能在多环芳烃污染的土壤中生长;经6个月和12个月的胁迫处理后,马褂木的茎高和地径在L1、L2污染水平下均比对照高,且马褂木地径生长变化率与多环芳烃L2污染水平呈显著差异关系,而广玉兰只有高生长在L2污染水平下比对照高;马褂木地径增长量与广玉兰相比,12个月后分别在L1和L2水平下表现为显著性差异.这说明马褂木对多环芳烃的耐受能力比广玉兰强.
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| 关 键 词： | 多环芳烃 绿化树种 生长 广玉兰 马褂木 |
Effects of PAHs Contamination on the Growth Of 2 Urban Afforestation Species |
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| ZHU Fan,TIAN Da-lun,YAN Wen-de,WANG Guang-jun,ZHENG Wei,LIANG Xiao-cui.Effects of PAHs Contamination on the Growth Of 2 Urban Afforestation Species[J].Journal of Central South Forestry University,2008,28(6). |
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| Authors: | ZHU Fan TIAN Da-lun YAN Wen-de WANG Guang-jun ZHENG Wei LIANG Xiao-cui |
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| Abstract: | Polycyclic aromatic hydrocarbons(PAHs) are a kind of organic pollutants existing accumulatively in the environment.Being highly persistent,they are potent toxins posing a carcinogenic risk to human beings.In this study,2 urban afforestation species(Magnolia grandiflora and Liriodendron chinense) from subtropical China were selected and planted separately in pots whose soils were treated with diesel oil to three concentration levels of PAHs(L
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| Keywords: | polycyclic aromatic hydrocarbons(PAHs) urban afforestation species growth Magnolia grandiflora Liriodendron chinense |
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