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1992 Fiscal Year Final Research Report Summary

Study on economic duty of water and optimum scale of irrigation facilities

Research Project

Project/Area Number 02302081
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 農業土木
Research InstitutionGifu University

Principal Investigator

NISHIDE Tsutomu  Gifu Univ. Agric. Professor, 農学部, 教授 (80021690)

Co-Investigator(Kenkyū-buntansha) YABE Katsuhiko  Osaka Pref. Univ. Agric. Asst. Prof., 農学部, 助教授 (80081561)
MIURA Takeshi  Okayama Univ. Agric. Asst. Prof., 農学部, 助教授 (60127587)
ADACHI Yadashi  Okayama Univ. Agric. Professor, 農学部, 教授 (20012007)
YOMOTA Matsushi  Okayama Univ. Agric. Professor, 農学部, 教授 (60081527)
SENGE Masateru  Gifu Univ. Agric. Asst. Prof., 農学部, 助教授 (00144006)
Project Period (FY) 1990 – 1992
KeywordsFarm pond / Quantity of capillary water / Model of management analysis / Heat balance / Consumptive use / Available rainfall / Standard irrigation water
Research Abstract

The results obtained in 1992 are summarized as follows: 1. Measurement and estimation of evapotranspiration.... Evapotranspiration from a turf was measured by heat balance method and consumptive use was presumed by tensiometer measurement in the turf soil. Furthermore, consumptive use was analyzed for evapotranspiration and water quantity passing through the effective soil layer. 2. Amount of capillary water from the subsoil layer.... Evapotranspiration and capillary rising flow were measured accurately by using a soil column apparatus. A cylinder 30cm in diameter and 100cm in height was filled uniformly with soil, and porous cups of seven tensiometers were set at depths of 5, 15, 25, 35, 45, 55, and 65cm below the surface. Then a groundwater table was set up at the lower end of the cylinder and the quantity of capillary water as well as the evapotranspiration rate were measured. Soil water movement changed with different conditions of soil texture, water table, and effective soil layer. In the case of sandy soil, capillary rise was not significant. On the other hand, the direction of soil moisture movement in silt changed upwards six days after irrigation and the intensity of capillary rising flow was about 1.0mm/d, for eight days irrigation interval. The effect of water table may not be taken into account except when water table is very shallow, less than 1m below ground surface. 3. Adequate scale of water supply system....Main and sub-main irrigation canal system - Capacity of farm pond - Supplying dry field with irrigation water (restriction of water quantity to certain hours). Considerable adjustment was done on the above-mentioned three objectives. Then, the optimum scale of regulating the reservoir for field irrigation was investigated. 4. Effective rainfall in an area....For the purpose of grasping the actual conditions of effective rainfall, the author rearranged the solution of effective rainfall in the field and suggested new analytical method.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 千家 正照,河野 英一: "基準的な潅水量の算定方式と降雨有効化の検討" 農業土木学会誌. 58(11). 1087-1091 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 丸山 利輔,千家 正照,西出 勤: "土壌水の動態と下層からの毛管補給" 農業土木学会誌. 58(11). 1087-1091 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 千家 正照,西出 勤,丸山 利輔: "土壌水の動態と下層からの毛管補給の実験的研究〜下層からの毛管補給に関する研究(I)〜" 農業土木学会論文集.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 丸山 利輔,西出 勤,千家 正照: "土壌水の動態と下層からの毛管補給の理論的研究〜下層からの毛管補給に関する研究(II)〜" 農業土木学会論文集.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masateru Senge, Eiichi: "Estimation of standard irrigation and investigation of available rainfall" Journal of the Japanese society of irrigation, drainage and reclamation engineering. 58. 1087-101091 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshisuke Maruyama, Masateru Senge, Tsutomu Nishide: "Movement of soil water and capillary water in the subsoil" Journal of the Japanese society of irrigation, drainage and reclamation engineering. 58. 1079-1085 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masateru Senge, Tsutomu Nishide, Toshisuke Maruyama: "Experimental study of the behavior of soil water and its capillary supply - Studies on capillary supply of soil water from lower layer soil (I)" Transactions of Japanese society of irrigation, drainage and reclamation engineering. 155. 53-59 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshisuke Maruyama, Tsutomu Nishide, Masateru Senge: "Experimental study of the behavior of soil water and its capillary supply - Studies on capillary supply of soil water from lower layer soil (II)" Transactions of Japanese society of irrigation, drainage and reclamation engineering. 155. 61-67 (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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