灌漑用水の安定性が末端水田地区における用水の配分と利用に与える影響

• 谷口 智之

  農業・食品産業技術総合研究機構農村工学研究所

• 佐藤 政良

  筑波大学生命環境科学研究科

書誌事項

タイトル別名

• Impact of Irrigation Water Stability on On-farm Water Distribution in a Paddy Field

抄録

In order to clarify how the lot-management water requirement (LWR) and the delivery water requirement (DWR), which are regarded as independent components the paddy water requirement design of Japan, change, vary and correlate depending on water source stability water distribution in two irrigation areas of gravity-continuous irrigation (GCI) in the Kokai River basin and pumping-intermittent irrigation (PII) in the Kinu River basin was studied. LWR and DWR as well as applied water in the two areas both of which were divided into upper and lower blocks were surveyed once in two weeks for two irrigation seasons. The following findings were obtained: 1) The ratio of water effectively stored in paddy plots was rather less in PII area and the lower block of each area where less water was available. 2) Under the unstable water distribution condition farmers in the upper block tended to take excessive water, thus resulting in insufficiency and unstableness of water in the lower block. 3) The two water requirements of LWR and DWR are not independent; the distributed water in a paddy block was first diverted for storing on paddy plot and LWR, and the rest appeared at the tail-end of ditch as DWR.

収録刊行物

• 農業土木学会論文集

  農業土木学会論文集 2006 (246), 825-831, 2006

  社団法人 農業農村工学会

キーワード

• 用水配分
• 栽培管理用水
• 配水管理用水
• 重力灌漑
• 揚水灌漑
• 連続灌漑
• 間断灌漑

詳細情報

• CRID: 1390001204542158592
• NII論文ID: 130004119043
• DOI: 10.11408/jsidre1965.2006.825
• ISSN: 18847234
• ISSN: 03872335
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可