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: Shimizu Katsuyuki 鳥取大学, 農学部, 准教授 (10414476)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥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.

Research Products

• [Journal Article] 灌漑地区における農地・水利用がイリ川に及ぼす影響に対する考察 (2013)
  • Author(s): 安西俊彦・清水克之・北村義信
  • Journal Title: 沙漠研究 Volume: 23(2) Pages: 41-49
  • NAID: 10031201698
  • Peer Reviewed
• [Presentation] 中国・黄土高原チェックダム農地における塩類集積のメカニズムに関する研究 (2016)
  • Author(s): 清水克之，時田拓郎，吉岡由美，北村義信
  • Organizer: 農業農村工学会
  • Place of Presentation: 仙台市青葉区
  • Year and Date: 2016-08-31
• [Presentation] 中国・黄土高原チェックダム農地における塩害の進行に関する研究 (2015)
  • Author(s): 清水 克之， 今井 通子， 吉岡 有美， 北村 義信
  • Organizer: 農業農村工学会全国大会
  • Place of Presentation: 岡山
  • Year and Date: 2015-09-01 – 2015-09-04
• [Presentation] 中国・黄土高原チェックダム農地における塩害の進行に関する研究 (2015)
  • Author(s): 清水 克之， 今井 通子， 吉岡 有美， 北村 義信
  • Organizer: 農業農村工学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2015-09-01
• [Presentation] Soil salinization and its mechanism on check dam farmlands in the Loess Plateau, China (2014)
  • Author(s): Katsuyuki Shimizu
  • Organizer: JIRCAS International Symposium on Soil Environment and Crop Production
  • Place of Presentation: Tokyo
  • Year and Date: 2014-11-28
• [Presentation] 水稲・畑輪作地帯における地下水位変動解析―カザフスタン共和国・イリ川下流域の灌漑地区を対象として－ (2013)
  • Author(s): 安西俊彦・清水克之・北村義信
  • Organizer: 平成25年度農業農村工学会全国大会
  • Place of Presentation: 東京農業大学（東京都世田谷区）
• [Presentation] 小アラル・シルダリア川流域における上下流間の利水競合と水土の劣化 (2013)
  • Author(s): 北村義信・猪迫耕二・山本定博・清水克之
  • Organizer: 日本砂丘学第59回全国大会シンポジウム「乾燥地における食料問題のゆくえ」
  • Place of Presentation: 東京工業大学キャンパスイノベーションセンター （東京都港区）
  • Invited
• [Book] Chapter 7 Irrigated agriculture and salinization.(pp.93-110) Restoration and development of the degraded Loess Plateau, China (2013)
  • 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