T
Toshiko Komatsu
Researcher at Saitama University
Publications - 106
Citations - 2442
Toshiko Komatsu is an academic researcher from Saitama University. The author has contributed to research in topics: Soil water & Water content. The author has an hindex of 27, co-authored 103 publications receiving 2123 citations.
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Journal ArticleDOI
Three-Porosity Model for Predicting the Gas Diffusion Coefficient in Undisturbed Soil
TL;DR: The three-porosity model (TPM) as mentioned in this paper combines three gas diffusivity models: (i) a general power-law D P (e) model, (ii) the classical Buckingham (1904) model at air saturation, and (iii) a recent macroporosity dependent model for D P at -100 cm H 2 O of soil-water metric potential (ψ).
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Density-Corrected Models for Gas Diffusivity and Air Permeability in Unsaturated Soil
T.K.K. Chamindu Deepagoda,Per Moldrup,Per Schjønning,Lis Wollesen de Jonge,Ken Kawamoto,Toshiko Komatsu +5 more
TL;DR: In this article, a density-corrected (D-C) D p (e)/D o model was proposed to predict gas diffusivity and air permeability in Danish soil profile data.
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Excluded-volume expansion of Archie's law for gas and solute diffusivities and electrical and thermal conductivities in variably saturated porous media
TL;DR: In this paper, the authors investigated analogies and differences between the four parameters, including gas and solute diffusivities and electrical and thermal conductivities under variably saturated fluid conditions.
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Relationship between specific surface area and the dry end of the water retention curve for soils with varying clay and organic carbon contents
Augustus C. Resurreccion,Per Moldrup,Markus Tuller,Ty P. A. Ferré,Ken Kawamoto,Toshiko Komatsu,Lis Wollesen de Jonge +6 more
TL;DR: In this article, the dry end of the soil water retention curve (SWRC) was measured with a chilled-mirror dew point psychrometer for 41 Danish soils covering a wide range of clay (CL) and organic carbon (OC) contents.
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Structure-Dependent Water-Induced Linear Reduction Model for Predicting Gas Diffusivity and Tortuosity in Repacked and Intact Soil
Per Moldrup,T.K.K. Chamindu Deepagoda,Shoichiro Hamamoto,Toshiko Komatsu,Ken Kawamoto,Dennis E. Rolston,Lis Wollesen de Jonge +6 more
TL;DR: In this article, the water-induced linear reduction (WLR) model for repacked soil is made adaptive for different soil structure conditions (repacked, intact) by introducing a media complexity factor (C m ) in the dry media term of the model.