Soil salinization and its mechanism on check-dam farmland in Loess Plateau, China
Project/Area Number |
25450360
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Rural environmental engineering/Planning
|
Research Institution | Tottori University |
Principal Investigator |
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 塩類集積 / チェックダム / 半乾燥地 / 天水農地 / 地下水位 / 黄土高原 |
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.
|
Report
(4 results)
Research Products
(8 results)
-
-
-
-
-
-
-
-
[Book] Chapter 7 Irrigated agriculture and salinization.(pp.93-110) Restoration and development of the degraded Loess Plateau, China2013
Author(s)
Shimizu, K., Yang, S.L. and Kitamura, Y. ( Edited by Tsunekawa, A., Liu, G., Yamanaka, N. and Du, S.)
Total Pages
288
Publisher
Springer
Related Report