| 重金属铬胁迫对土壤微生物数量及酶活性的影响 |
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| 引用本文： | 魏远,郑施雯,朱建林,江泽平,陈江.重金属铬胁迫对土壤微生物数量及酶活性的影响[J].东北林业大学学报,2011(9):90-93. |
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| 作者姓名： | 魏远 郑施雯 朱建林 江泽平 陈江 |
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| 作者单位： | 中国林业科学研究院林业研究所;宁波市环境保护科学研究设计院;宁波大学 |
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| 基金项目： | 国家“十一五”林业科技支撑计划项目(2006BAD03A0104) |
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| 摘 要： | 通过土培铬(Cr)胁迫试验,土壤样品采集及室内测定,研究了重金属Cr污染对土壤微生物数量和酶活性的影响.结果表明,土壤中微生物数量由多到少依次为细菌、放线菌、真菌,与对照土壤相比,处理水平下土壤中重金属Cr质量浓度的增加在一定程度上抑制了微生物的生长,导致土壤中的细菌、放线茵和真菌数量的减少；酶活性表现为抑制作用,土壤...
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| 关 键 词： | 铬胁迫 土壤 微生物数量 土壤酶活性 |
Microorganism Quantity and Enzyme Activity of Cr Contaminated Soil |
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| Wei YuanResearch Institute of Forestry,Chinese Academy of Forestry,Beijing,P.R.China;Zheng ShiwenNingbo Municipal Research and Design Institute of Environmental Protection;Zhu JianlinNingbo University;Jiang ZepingResearch Institute of Forestry,Chinese Academy of Forestry;Chen Jiang.Microorganism Quantity and Enzyme Activity of Cr Contaminated Soil[J].Journal of Northeast Forestry University,2011(9):90-93. |
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| Authors: | Wei YuanResearch Institute of Forestry Chinese Academy of Forestry Beijing PRChina;Zheng ShiwenNingbo Municipal Research and Design Institute of Environmental Protection;Zhu JianlinNingbo University;Jiang ZepingResearch Institute of Forestry Chinese Academy of Forestry;Chen Jiang |
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| Institution: | Wei Yuan(Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,P.R.China);Zheng Shiwen(Ningbo Municipal Research and Design Institute of Environmental Protection);Zhu Jianlin(Ningbo University);Jiang Zeping(Research Institute of Forestry,Chinese Academy of Forestry);Chen Jiang(Ningbo University) |
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| Abstract: | A heavy metal(Cr) stress experiment was conducted to study the effect of Cr pollution on soil microbe quantity and enzyme activity by soil sample collection and indoor measurement.Results indicated that the quantity of soil bacteria was the highest,followed by actinomycetes and fungi.Compared with the control,elevated Cr concentration restrained the growth of microorganism to a certain degree within the tested Cr concentrations,which resulted in a decrease in quantities of bacteria,actinomycetes and fungi.Enzyme activities in soil also decreased with increasing Cr concentration.The activities of urease and catalase had significant negative correlations with Cr concentration,and the correlation coefficients were-0.862 and-0.650 respectively.Urease and catalase activities could be used as indicators for soil Cr pollution. |
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| Keywords: | Cr stress Soil Soil microbe quantity Soil enzyme activities |
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