Effects of heavy metal contamination on soil microbial population
نویسندگان
چکیده
منابع مشابه
Effects of long-term heavy metal contamination on soil microbial characteristics.
In this study, total heavy metal content and its effects on soil microbiological characteristics were investigated in soil samples from an area with known long-term pollution problems. The total heavy metal concentrations of contaminated soil samples were 109 and 1,558 mg/kg for Hg and As, respectively. Key microbiological parameters measured included dehydrogenase activity, ATP content and num...
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Soil microorganisms may be both sensitive and resilient to various disturbances. The effects of a single stressor on soil microorganisms have been well studied, but only limited research has been carried out to test the effects of simultaneous action of diverse stressors. Soil samples were collected from a long-term polluted zinc and lead site and an unpolluted site. Modeling studies assumed sp...
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The effects of heavy metals on soil microbial processes were investigated over a period of six weeks. Analytical grade (Sigma) sulphate salts of copper, zinc and nickel were added individually and in combinations to soil samples and incubated in different plastic pots. Samples were taken from the pots forthnightly and the rates of microbial carbon and nitrogen mineralization, microbial biomass ...
متن کاملHeavy metal contamination of soil and sediment in Zambia
Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan. Department of Biomedical Studies, School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia. Department of Pharmacology, School of Veterinary Medicine Rakuno Gakuen University, Ebetsu...
متن کاملHeavy metal Impact on Soil Microbial Biomass , Soil dehydrogenase activity and Soil Respiration rate
The contamination of agricultural soils by heavy metals is a global problem. Soil texture as a biotic factor represents one of the most important factors that influences the distribution of organic matter and ultimately play decisive role in retention of heavy metals in soil ecosystem. The effects of heavy metals on soil microbial processes were investigated. Analytical grade sulphate and chlor...
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ژورنال
عنوان ژورنال: Soil Science and Plant Nutrition
سال: 1992
ISSN: 0038-0768,1747-0765
DOI: 10.1080/00380768.1992.10416961