Relationships between the Type and Carbon Chemistry of Humic Acids from Some New Zealand and Japanese Soils

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概要

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• Humic acids from a total of 14 soils, 10 from New Zealand and 4 from Japan, were selected to provide a range from Rp to A-types. Semi-quantitative assessment of their carbon chemistry by cross polarization magic angle spinning (CPMAS)^<13>C-nuclear magnetic resonance (NMR) revealed variations in composition that were generally related to humic acid type. Aromatic-C was the predominant form of C in most A-type humic acids whereas in Rp, P, and B-type humic acids, the aliphatic-C and aromatic-C contents were comparable. Differences in humic acid types were not always reflected in their carbon chemistry, possibly because of their mode of formation. The effects of fire on vegetation or soil organic matter may at least partly explain the occurrence of A-type humic acids in two different New Zealand soils.

• 社団法人日本土壌肥料学会の論文

著者

• YAMAMOTO Kazuhiko

  College of Agriculture and Veterinary Medicine, Nihon University

• Churchman G.

  Division Of Soils Commonwealth Scientific And Industrial Research Organization

• Tate Kevin

  DSIR Land Resources, Department of Scientific and Industrial Research

• Meinhold Richard

  DSIR Chemistry, Department of Scientific and Industrial Research

• Newman Roger

  DSIR Chemistry, Department of Scientific and Industrial Research

• Tate Kevin

  Dsir Land Resources Department Of Scientific And Industrial Research

• Newman Roger

  Dsir Chemistry Department Of Scientific And Industrial Research

• Yamamoto Kazuhiko

  College Of Agriculture And Veterinary Medicine Nihon University

関連論文

• A COMPARISON OF THE HUMIC SUBSTANCES FROM SOME VOLCANIC ASH SOILS IN NEW ZEALAND AND JAPAN
• Relationships between the Type and Carbon Chemistry of Humic Acids from Some New Zealand and Japanese Soils

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