| 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 |
|
|
タイトル |
Characteristics of Salt Leaching in Saline Soil with a Subsurface Hardpan : A Study Using Undisturbed Soil Core Samples |
|
言語 |
en |
| 作成者 |
OMORI, Keisuke
KOBAYASHI, Motoyoshi
YAMASHITA, Yuji
ADACHI, Yasuhisa
|
| アクセス権 |
|
|
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 |
Hardpan, Leaching, Salt-affected soil, Undisturbed soil, Uzbekistan |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
A comparative leaching experiment of saline soil using undisturbed core samples (20 cm in diameter and 74 cm in length) with and without a hardpan, was carried out following the conventional method of water supply. The samples were collected in salt-affected farmland in the Syrdarya Region of Uzbekistan, with a hardpan formed at a depth of 30 cm. Another sample, without a hardpan, was plowed manually to a depth of 40 cm. A 24-day leaching experiment with total water supply of 300 mm demonstrated clear differences between the two sample types. The amounts of leached water were 98.7 mm for with hardpan and 223.6 mm for without hardpan samples, and the amounts of salt leached from samples were estimated as 276 mg cm-2 (discharge ratio: 16.4%) and 597 mg cm-2 (35.8%), respectively.
Seventy-two days after the experiment, the saturated hydraulic conductivity of samples without a hardpan at depths of 30-60 cm was reduced to one-200th of that before the experiment. This suggested that hardpans could form not only by tractor compaction but also soil slaking and precipitation of gypsum by leaching operations. It is necessary to develop methods to maintain the effects of breaking the hardpan and confirm their validity through on-site testing. |
|
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 “Sand Dune Research, Vol. 66, No. 1, pp. 9-20 (2019)”, published by the Japanese Society of Sand Dune Research. |
|
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 |
10.34556/0002000238 |
|
ID登録タイプ |
JaLC |
| 関連情報 |
|
|
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 |
|
|
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. 91-109,
発行日 2020-03-05
|
| 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-_91-109 (599KB)
