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Volume 29 (1987)
- Issue 4 Pages 153-
- Issue 3 Pages 121-
- Issue 2 Pages 89-
- Issue 1 Pages 1-
Volume 29, Issue 2
Displaying 1-3 of 3 articles from this issue
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: Flow Pattern and Residence Time of Groundwater Revealed by Environmemtal Tritium and Water qualitySang Keun BAE, Isamu KAYANE1987 Volume 29 Issue 2 Pages 89-98
Published: May 30, 1987
Released on J-STAGE: December 11, 2012
JOURNAL FREE ACCESS -
Changyuan TANG, Norio TASE, Shizuo SHINDO, Masaru TANAKA, Fumi KURATA1987 Volume 29 Issue 2 Pages 99-105
Published: May 30, 1987
Released on J-STAGE: December 11, 2012
JOURNAL FREE ACCESSBy measuring pressure heads through an auto-recording tensiometer, behavior of soil water was observed in a crop field, which was affected by irrigation for surrounded paddy fields, in the Dejima area of Ibaraki Prefecture. Major observations are as follows:
(1) Behavior of soil water in a crop field near padd y fields is very affected by fluctuation of water table, rainfall, and evaporation.
(2) During the irrigation period, flux of soil water is generally downward in surface zone and upward in and above capillary zone and convergent zero flux plane is formed in and after rainfall. On the other hand, downward flux is generally dominant during the non-irrigation period.
(3) The auto-recording tensiometer is a very effective tool to trace the soil water in the unsaturated zone.View full abstractDownload PDF (696K) -
[in Japanese]1987 Volume 29 Issue 2 Pages 107-111
Published: May 30, 1987
Released on J-STAGE: December 11, 2012
JOURNAL FREE ACCESSDownload PDF (507K)
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