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Influence of Soil Microstructure on Water Characteristics of Selected Hawaiian Soils
Author(s) -
Tsuji G. Y.,
Watanabe R. T.,
Sakai W. S.
Publication year - 1975
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1975.03615995003900010011x
Subject(s) - ultisol , soil water , inceptisol , vertisol , microstructure , oxisol , usda soil taxonomy , porosity , scanning electron microscope , geology , granulometry , soil science , mineralogy , amorphous solid , alfisol , materials science , chemistry , composite material , soil classification , geotechnical engineering , geomorphology , organic chemistry , sediment
The higher water‐holding capacity of Oxisols and Ultisols compared to that of the Vertisols and Inceptisols at 15 bars of suction is attributed to the presence of intra‐aggregate void spaces. Existence of such voids was verified with the aid of a scanning electron microscope. These voids are obvious in soils with kaolinitic and oxidic mineralogy but are not evident in soils of montmorillonitic or amorphous oxide composition.