| 茶树对铜的吸收与累积特性 |
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| 引用本文： | 李晓林,唐茜,叶善蓉,陈能武,张苏敏,谭和平.茶树对铜的吸收与累积特性[J].四川农业大学学报,2009,27(1). |
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| 作者姓名： | 李晓林 唐茜 叶善蓉 陈能武 张苏敏 谭和平 |
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| 作者单位： | 1. 四川农业大学,林学园艺学院,四川,雅安,625014
2. 中国测试技术研究院,四川,成都,610021 |
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| 摘 要： | 通过土壤盆栽和水培试验,研究了铜对茶树生长的影响,铜在茶树中的分布规律及吸收累积特性。结果表明,铜对水培茶树有较强的毒性,铜处理浓度≥3 mg/L时,茶树不仅出现严重的毒害症状,甚至死亡;而土壤铜污染对茶树的生长和光合速率都有明显的抑制作用。茶树吸收的铜大部分被吸收根所固定,向地上部运输的比例较低,根部对阻止土壤中的铜向新梢转移发挥了重要的缓冲及屏障作用。盆栽茶树各部位的铜含量由高到低的分布次序为:吸收根>主根>枝条>主茎>新梢(1芽2叶)>叶片,且各部位的铜含量与土壤外源铜添加量呈极显著正相关关系,而水培茶树的根和叶片的铜含量与铜处理浓度也呈极显著正相关。
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| 关 键 词： | 茶树 铜 水培 吸收累积 |
Absorption and Accumulation of Copper in Tea Plant |
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| LI Xiao-lin,TANG Qian,YE Shan-rong,CHEN Neng-wu,ZHANG Shu-min,TAN He-ping.Absorption and Accumulation of Copper in Tea Plant[J].Journal of Sichuan Agricultural University,2009,27(1). |
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| Authors: | LI Xiao-lin TANG Qian YE Shan-rong CHEN Neng-wu ZHANG Shu-min TAN He-ping |
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| Institution: | 1.College of Forestry and Horticulture;Sichuan Agricultural University;Yaan 625014;Sichuan;China;2.National Institute of Measurement and Testing Technology;Chengdu;610021;China |
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| Abstract: | Copper(Cu) accumulation in tea plant(Fudingdabaicha) has been studied by hydroponics and pot experiment.The results indicated that Cu had higher toxicity to tea plant.As soon as Cu concentration was more than 3 mg/L,the tea plant of hydroponics could be damaged gravely and even died;the pot tea plants' growth and photosynthesis were restricted obviously.Lots of Cu was accumulated in tea plant root,and a little was transferred to above-ground,which showed that root could prevent Cu from transferring to above... |
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| Keywords: | tea plant Cu hydroponics accumulation |
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