TY - JOUR
T1 - Changes in Certain Paddy Soil Properties under Perforated Sheet Pipe as Subsurface Shallow Drainage
AU - Soe, Yinn Mar
AU - Shinogi, Yoshiyuki
AU - Taniguchi, Tomoyuki
N1 - Funding Information:
We owe deep gratitude to Dr. Tetsuro Fukuda (chairperson of the Japan Sheet Pipe Promotion Association) and Mr. Kozo Arita (a landowner in Takedatsu, Kunisaki City, Oita Prefecture) for helping us smoothly conduct the field experiments. We are also thankful toward our laboratory members who helped during the difficult times involving soil sampling and during the field study. Finally, we would like to note that this study would not have been possible without the financial support of the Japan International Cooperation Agency.
Publisher Copyright:
© 2022, Japan Agricultural Research Quarterly. All Rights Reserved.
PY - 2022
Y1 - 2022
N2 - Certain soil properties are expected to change under subsurface shallow drainage. This study focuses on the use of sheet pipes originally developed for use in Japan approximately 40 years ago. However, limited research on the said sheet pipes necessitates further study. To investigate the changes in soil properties in a field where a sheet pipe has been installed, soil samples were collected from drainage stream sites in the field—upstream, midstream, and downstream—at specific distances from the sheet pipe (0 m, 1 m, and 2 m) and soil depths (10 cm, 25 cm, and 45 cm), both before and after rice cultivation. In only one rice cropping, we found no significant impact caused by the sheet pipe on some soil properties, except for larger pores. We observed larger mesopores portions (MePs) at distances of 0 m and 1 m from the sheet pipe in deeper soil layers (at depths of 25 cm and 45 cm). Although this study found no significant differences in macropores (MaPs), MePs could lead to the development of MaPs and cracks and could improve drainage characteristics in the future.
AB - Certain soil properties are expected to change under subsurface shallow drainage. This study focuses on the use of sheet pipes originally developed for use in Japan approximately 40 years ago. However, limited research on the said sheet pipes necessitates further study. To investigate the changes in soil properties in a field where a sheet pipe has been installed, soil samples were collected from drainage stream sites in the field—upstream, midstream, and downstream—at specific distances from the sheet pipe (0 m, 1 m, and 2 m) and soil depths (10 cm, 25 cm, and 45 cm), both before and after rice cultivation. In only one rice cropping, we found no significant impact caused by the sheet pipe on some soil properties, except for larger pores. We observed larger mesopores portions (MePs) at distances of 0 m and 1 m from the sheet pipe in deeper soil layers (at depths of 25 cm and 45 cm). Although this study found no significant differences in macropores (MaPs), MePs could lead to the development of MaPs and cracks and could improve drainage characteristics in the future.
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M3 - Article
AN - SCOPUS:85125529252
VL - 56
SP - 59
EP - 66
JO - Japan Agricultural Research Quarterly
JF - Japan Agricultural Research Quarterly
SN - 0021-3551
IS - 1
ER -