Properties of spodosols and andisols showing climosequential and biosequential relations in southern Hakkoda, northeastern Japan

S. Shoji, T. Takahashi, M. Saigusa, I. Yamada, F. C. Ugolini

研究成果: Article査読

50 被引用数 (Scopus)

抄録

We conducted comparative studies on the chemical and mineralogical properties of selected pedons of Spodosols (Placorthods) and Andisols (Fulviudands and Melanudands) derived from Towada-a ash of 1000 B.P. and Chuseri ash of 5000 B.P., Spodosols and Fulviudands of the climosequence showed most remarkable differences in such chemical properties as soil acidity, fluoride and phosphate reactivity, humus accumulation and composition, and clay mineralogy, chiefly in noncrystalline aluminosilicates. Fulviudands and Melanudands, however, having a biosequential relation, showed contrasting differences mainly in the properties of soil humus. Spodosols showed remarkable accumulations of Fe and Al and also displayed the existence of placic horizon. Nevertheless, one of the two Spodosols did not meet the chemical criteria for a spodic horizon. Both Andisols and Spodosols satisfied the andic properties. In this paper we also discuss Spodosol-Andisol transition problems and propose some solutions.

本文言語English
ページ(範囲)135-150
ページ数16
ジャーナルSoil Science
145
2
DOI
出版ステータスPublished - 1988 2

ASJC Scopus subject areas

  • 土壌科学

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