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International Journal of Soil Science
  Year: 2006 | Volume: 1 | Issue: 3 | Page No.: 235-242
DOI: 10.3923/ijss.2006.235.242
 
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Effects of Highly Volatile Organochlorine Solvents on Soil Respiration and Microbial Biomass

Hiromasa Kiyota, Shinjiro Kanazawa, Akihito Yokoyama and Hidenori Wada

Abstract:
The effects of highly volatile organochlorine solvents (1,1,1-trichloroethane, TCET; trichloroethylene, TCE and tetrachloroethylene, PCE) on soil respiration and soil biomass were investigated using volcanic ash soil and gray lowland soil with different fertilizations. All the solvents significantly inhibited the activity and decreased the biomass under the sealed conditions 10 to 50 mg gds-1 solvents added. Under the upland and flooded conditions no significant difference between the solvents was observed. Taking into account the solubility of the solvents (TCET>TCE>>PCE) in water, the toxicity would be an order of PCE>TCE>TCET. Buffer ability, resulted from absorption of solvents on organic matters etc., was higher when the soil with organic manure fertilized was used. In addition, the effects were smaller on volcanic ash soil.
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How to cite this article:

Hiromasa Kiyota, Shinjiro Kanazawa, Akihito Yokoyama and Hidenori Wada, 2006. Effects of Highly Volatile Organochlorine Solvents on Soil Respiration and Microbial Biomass. International Journal of Soil Science, 1: 235-242.

DOI: 10.3923/ijss.2006.235.242

URL: https://scialert.net/abstract/?doi=ijss.2006.235.242

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