| 耐铅菌株对铅污染土壤中玉米苗期元素吸收的影响 |
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| 引用本文： | 白淑玉,耿玉清,李小清,戚俊,孙晓松.耐铅菌株对铅污染土壤中玉米苗期元素吸收的影响[J].湖北林业科技,2008(5). |
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| 作者姓名： | 白淑玉 耿玉清 李小清 戚俊 孙晓松 |
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| 作者单位： | 1. 北京林业大学水土保持学院,北京,100083
2. 北京林业大学材料科学与工程学院,北京,100083 |
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| 摘 要： | 土壤重金属污染具有在土壤中移动性差、滞留时间长、不能被微生物降解的特点,并可经水、植物等介质最终影响人类健康,治理和恢复的难度大。笔者的目的是通过筛选出对玉米植株中N、P、K含量有促进作用,且能有效抑制玉米铅富集量的耐铅菌株,为重金属污染土壤的微生物修复提供科学的依据。采用玉米盆栽试验,研究不同耐铅微生物菌对重金属铅污染土壤上玉米生长及元素吸收的影响,试验结果表明:在不同浓度的铅水平下,耐铅菌株对玉米N、P、K的吸收均有促进作用,而对玉米铅富集量各菌株均有明显抑制作用;从5种菌株中筛选出M2对玉米吸收有效养分具有促进作用。
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| 关 键 词： | 重金属污染 生物修复 玉米苗期 耐铅菌株 铅 |
Effects of Elements' Absorbing by Lead-resistant Strains during Seedling Stage of Zea mays L. |
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| Bai Shuyu GengYuqing Li Xiaoqing Qi Jun Sun Xiaosong.Effects of Elements' Absorbing by Lead-resistant Strains during Seedling Stage of Zea mays L.[J].Hubei Forestry Science and Technology,2008(5). |
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| Authors: | Bai Shuyu GengYuqing Li Xiaoqing Qi Jun Sun Xiaosong |
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| Institution: | Bai Shuyu(1) GengYuqing(1) Li Xiaoqing(2) Qi Jun(1) Sun Xiaosong(1)(1. College of Soil , Water Conservation,Beijing Forestry University Beijing 100083,2. College of Materials Science , Engineering,Beijing Forestry University Beijing 100083) |
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| Abstract: | Slow motion,long retarding time and high resistance to biodegradation are the characteristics of heavy metals pollution in soil,which can impact human's health by water,plants and so on.Heavy metals pollution is difficult to improve.The authors studied on bio-improvement for heavy metals polluted soil,by the methods of screening Pb-resistance strains which are good for N,P,K in Zea mays L..Potted Zea mays L.showed that Pb-resistance strains which restrained Pb accumulation accelerated absorbing of N,P,K in ... |
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| Keywords: | heavy metals pollution bio-improvement Zea mays L seedling stage Pb-resistance strains Lead |
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