土壤锗污染对土壤微生物的生态毒理效应
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湖北省科技攻关计划引导项目(2001AA201C1)资助


ECOLOGICAL EFFECTS OF GERMANIUM-POLLUTION ON SOIL MICROORGANISMS AND THEIR CRITICAL VALUE
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    摘要:

    着重讨论土壤添加Ge对土壤微生物的生态效应及土壤Ge污染临界含量.盆栽试验表明,在土壤Ge含量2~200mgkg-1范围,低浓度Ge对土壤细菌、真菌、放线菌有刺激作用,随着浓度增高,而交替出现抑制和刺激作用.土壤Ge浓度与明亮发光杆菌T3发光度之间有极显著的负相关性,按照T3发光度80%和100%为临界值,计算得土壤Ge临界浓度分别为502mgkg-1和58mgkg-1.

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    Ecological effects of germanium addition to soil on microorganisms and their critical value were emphatically discussed in this paper. A pot experiment was carried out with results demonstrating that low Ge concentration had stimulating ef fect on soil bacteria, fungi, actinomycetes, but when the content of Ge in the soil increased, the stimulating effect began to al ternate with inhabiting one. In the pot experiment, the luminescence of photobacterium phosphoreum spp. T3 showed a strongly negative relationship to the concentration of Ge. If "100%" and "80%" of the luminescence of Strain T3 is deemed as critical values for two grades, the critical concentrations of Ge in soil were est imated to be 50.2 mg kg-1 and 5.8 mg kg-1, respectively.

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林匡飞,徐小清,郑利,邵志慧,项雅玲.土壤锗污染对土壤微生物的生态毒理效应[J].土壤学报,2005,42(2):266-269. DOI:10.11766/trxb200403150214 Lin Kuangfei, Xu Xiaoqing, Zheng Li, Shao Zhihui, Xiang Yaling. ECOLOGICAL EFFECTS OF GERMANIUM-POLLUTION ON SOIL MICROORGANISMS AND THEIR CRITICAL VALUE[J]. Acta Pedologica Sinica,2005,42(2):266-269.

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  • 收稿日期:2004-03-15
  • 最后修改日期:2004-06-26
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  • 在线发布日期: 2013-02-25
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