| Item type |
国際農研デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2024-05-01 |
| タイトル |
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|
タイトル |
Problems and Measures for the Adoption of Cut-drain and Its Applicability to Soil Conditions in Uzbekistan |
|
言語 |
en |
| 作成者 |
OKUDA, Yukio
FUJIMAKI, Haruyuki
KITAMURA, Yoshinobu
KITAGAWA, Iwao
|
| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
|
|
主題 |
Salinization, Subsurface drainage, Cut-drain, Soil moisture, Preferential flow |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Secondary salinization of irrigated lands in Uzbekistan has been caused by excessive irrigation and rising groundwater levels due to the malfunction of drainage systems. Measures such as drainage system maintenance or leaching has been conducted, but there are fields where salinity levels remain high. The use of a shallow subsurface drainage system has been proposed to ensure the complete removal of percolation water after leaching, but it is considered to be an expensive option. Therefore, the possibility of introducing a drain drilling machine (Cut-drain) which has been developed recently in Japan, was studied. Employing Cut-drain has presented some problems because it rises up to the soil surface and causes the occurrence of preferential flow under dry soil conditions. In this study, we examined the soil moisture conditions suitable for the construction of Cut-drain and the effectiveness of a method for mitigating preferential flow. The results showed that there was a borderline soil moisture condition needed in the construction of Cut-drain. More than 9–11% moisture was required in the first soil layer (from the surface to 20 cm below it) and 12–15%, in the second layer (from 20 to 40 cm). Furthermore, it was found that the preferential flow could be mitigated by irrigating the furrows before construction. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
The above article was translated and reprinted from “Irrigation, Drainage and Rural Engineering Journal, Vol. 85, No. 2, pp. II_83-II 90 (2017)”, published by the Japanese Society of Irrigation, Drainage and Rural Engineering. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Japan International Research Center for Agricultural Sciences |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_3248 |
|
資源タイプ |
book part |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| ID登録 |
|
|
ID登録 |
10.34556/0002000237 |
|
ID登録タイプ |
JaLC |
| 関連情報 |
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|
関連タイプ |
isPartOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.34556/0002000227 |
|
|
関連名称 |
Development of subsurface drainage and water-saving irrigation technology for mitigation of soil salinization in Uzbekistan |
| 収録物識別子 |
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|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
1341-710X |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11159468 |
| 書誌情報 |
en : JIRCAS Working Report : Development of subsurface drainage and water-saving irrigation technology for mitigation of soil salinization in Uzbekistan
巻 88,
p. 75-90,
発行日 2020-03-05
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| 位置情報 |
|
|
|
位置情報（自由記述） |
Uzbekistan |
|
|
位置情報（自由記述） |
ウズベキスタン |
jircas_working_report88-_75-90 (715KB)
