DECOMPOSITION OF SEWAGE SLUDGES IN SOIL AS AFFECTED BY THEIR ORGANIC MATTER COMPOSITION

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概要

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• The rate of mineralization of C and N in a Light-colored Andosol amended with six different sewage sludges was studied during a 8-week incubation period at 28℃ in order to determine how the chemical composition of the added sludges influences their decomposition. Chemical analyses of the sludges showed that the composition of the organic matter (i.e. lipid, water-soluble sugar, hemicellulose, cellulose, crude protein, and lignin) and of organic nitrogen (i.e amino acid-N, hexosamine-N, and unidentified-N) was similar among the sludges while the amount of the total organic matter varied widely. The mineralization rate of sludge organic C was related negatively to the sum of the inorganic matter and lignin (unextractable organic matter) contents of the sludge. The mineralization rate of sludge organic N was related to the crude protein content of the total sludge organic matter.

• 社団法人日本土壌肥料学会の論文

著者

• Mukai Satoshi

  The National Institute For Environmental Studies

• HATTORI Hiroyuki

  The National Institute for Environmental Studies

関連論文

• DECOMPOSITION OF SEWAGE SLUDGES IN SOIL AS AFFECTED BY THEIR ORGANIC MATTER COMPOSITION
• Influence of Cadmium on Decomposition of Glucose and Cellulose in Soil
• MICROBIAL ACTIVITIES IN SOIL AMENDED WITH SEWAGE SLUDGES
• INFLUENCE OF CADMIUM ON DECOMPOSITION OF SEWAGE SLUDGE AND MICROBIAL ACTIVITIES IN SOILS

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