東北および中央日本のメラニュ-ダンドとフルビュ-ダンドおよびそれらの腐植酸, フルボ酸のアミノ酸組成

概要

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The amino acid concentration and composition of Melanudands and Fulvudands were analyzed and compared to those of humic and fulvic acids in the soils. The results are as follows : 1) The amino acid concentration of Fulvudands (1800-2000 mmol kg^<-1>) was higher than that of Melanudands (1100-1500 mmol kg^<-1>). 2) By multivariate analyses, i.e. principal component and cluster analyses, the amino acid composition of both Andisols was analogous. 3) Horizon-dependent amino acid composition was observed in the Andisols. At surface horizons, the proportion of valine, leucine, isoleucine and alanine was higher than that of non-surface horizons while the proportion of aspartic and glutamic acids was lower. 4) Principal component analysis indicated that the amino acid composition of whole soils, humic and fulvic acids was different. The difference was due to the proportion of neutral hydrophobic amino acids such as leucine, isoleucine and proline.
社団法人日本土壌肥料学会の論文
1995-08-05