2015 Fiscal Year Final Research Report
Soil salinization and its mechanism on check-dam farmland in Loess Plateau, China
| Project/Area Number |
25450360
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Rural environmental engineering/Planning
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| Research Institution | Tottori University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 塩類集積 / チェックダム / 半乾燥地 / 天水農地 / 地下水位 |
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| Outline of Final Research Achievements |
A study on actual condition and the mechanism of soil salinization on check-dam farmland in Loess Plateau was conducted. the output of the research are summarized as below;(1)the groundwater level of the salinized farmland is higher than that of non-salinized farmland through a year. (2)soil salinization has promoted to the downstream in the farmland because of increase of groundwater level of the farmland by high groundwater level of the drainage canal in the farmland.(3)Based on the investigation on soil salinization on other check-dam farmlands in the same basin, it was clarified that soil salinization occured at different places in the check-dam farmlands. EC of drainage water is high as 2 dS/m and it suggested that concentration of salt that contains runoff sedimentation has increased because of evaporation of water.
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| Free Research Field |
農地水文
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