Journal of the Japanese Society of Soil Physics

Journal of the Japanese Society of Soil Physics

Online ISSN : 2435-2497
Print ISSN : 0387-6012

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Volume 132

Displaying 1-14 of 14 articles from this issue

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[title in Japanese]

[in Japanese]

2016 Volume 132 Pages 1-2
Published: 2016
Released on J-STAGE: July 16, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_1

JOURNAL FREE ACCESS

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Experimental and numerical analyses on saltwater intrusion and removal in porous media

Kazuro MOMII, Masahiro TAKAHASHI, Roger A. Luyun, Jr.

2016 Volume 132 Pages 3-12
Published: 2016
Released on J-STAGE: July 30, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_3

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Numerical study on fingered flow and solute transport in unsaturated zone

Masahiko SAITO, Kei NAKAGAWA

2016 Volume 132 Pages 13-21
Published: 2016
Released on J-STAGE: July 19, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_13

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It has been found that irregular infiltration is often observed at the wetting front in soil under unsatu-rated conditions. This concept is known as fingered flow. Macroscopic dispersion occurs in the solute transport pro-cess due to the heterogeneity of the flow field. In the conventional convective-dispersion analysis, macroscopic dispersivity has been known to be an important parame-ter when reproducing this phenomenon. However, quan-titative evaluation of the macroscopic dispersivity in the vadose zone is still problematic, because the dispersivity depends on the infiltration conditions. In this study, the nu-merical simulations of infiltration and solute transport pro-cesses are performed in the artificial heterogeneous field of hydraulic conductivity. The heterogeneous field are gener-ated using the stochastic fractal model. Then, the quantita-tive evaluation of macroscopic dispersivity under fingered flow conditions and its characteristics are discussed. The results of this study show that the difference in averaged permeability between upper and lower formations affects the shape of the infiltration profile, or finger shape. The macroscopic dispersivity of the media seems to depend on this finger shape. Also, a large infiltration surplus inhibits the generation of fingered flow.

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[title in Japanese]

[in Japanese]

2016 Volume 132 Pages 23
Published: 2016
Released on J-STAGE: July 19, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_23

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Land-surface hydrology with cosmic-ray neutrons: principles and applications

Marek Zreda

2016 Volume 132 Pages 25-30
Published: 2016
Released on J-STAGE: July 19, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_25

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Soil moisture plays the critical role in land-surface processes. But it is not well understood, in part because of its strong spatial variability that makes diffi-cult obtaining representative measurements. The recently developed cosmic-ray soil moisture probe provides the means for such representative measurements and therefore has the potential to provide useful area-average data for land-surface hydrology.

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Evaluating measurement accuracy of commercial multiple sensor from user’s viewpoint

Mitsuhiro INOUE

2016 Volume 132 Pages 31-39
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_31

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Discussion at the 57th symposium on sharing information of soil moisture sensor technologies

Hideki MIYAMOTO

2016 Volume 132 Pages 41-44
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_41

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[title in Japanese]

2016 Volume 132 Pages 45-53
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_45

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Role of multiple intertillage weeding for the paddy cultivation described in agricultural books published in the Edo era

Tatsuaki KASUBUCHI, Hideki ARAO, Hironori YASUDA

2016 Volume 132 Pages 55-59
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_55

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[title in Japanese]

Yasushi MORI, Hirotaka SAITO

2016 Volume 132 Pages 61-63
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_61

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「2015 土壌水分ワークショップ」の報告

[in Japanese]

2016 Volume 132 Pages 65-66
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_65

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Report of the MARCO Satellite International Workshop 2015 “Adoption and adaptation of SWAT for Asian crop production systems and water resource issues”

Sadao EGUCHI

2016 Volume 132 Pages 67-72
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_67

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[title in Japanese]

[in Japanese]

2016 Volume 132 Pages 73-74
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_73

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[title in Japanese]

[in Japanese]

2016 Volume 132 Pages 76
Published: 2016
Released on J-STAGE: July 20, 2021

DOIhttps://doi.org/10.34467/jssoilphysics.132.0_76

JOURNAL FREE ACCESS

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