Effect of Lead Contamination on Soil Microbial Activity Measured by Microcalorimetry
Microcalorimetry was used to investigate the microbial activity in three types of soil （orchard soil, crop soil, forest soil） in Wuhan, China, and to evaluate the influence of different concentrations of lead （Pb^2＋） on soil microbial activity. The experimental results revealed that due to different...
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| Published in: | Chinese journal of chemistry Vol. 29; no. 7; pp. 1541 - 1547 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
Weinheim
WILEY-VCH Verlag
01-07-2011
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
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| Online Access: | Get full text |
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| Summary: | Microcalorimetry was used to investigate the microbial activity in three types of soil （orchard soil, crop soil, forest soil） in Wuhan, China, and to evaluate the influence of different concentrations of lead （Pb^2＋） on soil microbial activity. The experimental results revealed that due to different physical and chemical characteristics of the soils, soil microbial activity in three soil samples were in a descending sequence： orchards soil, crops soil, forest soil. Six levels ofPb viz. 0, 10, 20, 40, 80, 160 μg·g^-1 were applied in these soils, and the results showed that an in- crease of the amount of Pb^2＋ is associated with a decrease in microbial activity in the soils due to the toxic effect of Pb^2＋. In order to gain further insight of the sequential change of microorganisms, determination of colony forming units （CFU） was performed to provide a negative linear correlation between the heat effect and the respective number of microorganisms in the system. |
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| Bibliography: | 31-1547/O6 soil microbial activity, microcalorimetry, lead contamination Microcalorimetry was used to investigate the microbial activity in three types of soil （orchard soil, crop soil, forest soil） in Wuhan, China, and to evaluate the influence of different concentrations of lead （Pb^2＋） on soil microbial activity. The experimental results revealed that due to different physical and chemical characteristics of the soils, soil microbial activity in three soil samples were in a descending sequence： orchards soil, crops soil, forest soil. Six levels ofPb viz. 0, 10, 20, 40, 80, 160 μg·g^-1 were applied in these soils, and the results showed that an in- crease of the amount of Pb^2＋ is associated with a decrease in microbial activity in the soils due to the toxic effect of Pb^2＋. In order to gain further insight of the sequential change of microorganisms, determination of colony forming units （CFU） was performed to provide a negative linear correlation between the heat effect and the respective number of microorganisms in the system. Gai, Nan Yang, Yongliang Li, Tao Yao, Jun Wang, Fei Chen, Huilun（ a National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing 100037, China b School of Environmental Studies ＆ Key Laboratory of Biogeology and Environmental Geology of Chinese Ministry of Education ＆ Sino-Hungarian Joint Laboratory of Environmental Science and Health, China University of Geosciences, Wuhan, Hubei 430074, China c National Environment ＆ Energy International Cooperation Base, and Civil ＆ Environment Engineering School University of Science and Technology, Beijing 100083, China） the National Outstanding Youth Research Foundation of China - No. 40925010 the National Natural Science Foundation of China - No. 40873060 ArticleID:CJOC201180277 istex:AEEB275F5E9647C3ADB7392A02E89F72CFCFF157 ark:/67375/WNG-L0GV72B0-F ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1001-604X 1614-7065 |
| DOI: | 10.1002/cjoc.201180277 |