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Use of stable isotopes of water for water cycle study

Research Project

Project/Area Number 10680500
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

SUGIMOTO Atsuko  Kyoto Univ. Ceter for Ecological Research, Assoc. Prof., 生態学研究センター, 助教授 (50235892)

Co-Investigator(Kenkyū-buntansha) NUMAGUTI Atsusi  Hokkaido Univ. Gard. Shool of Eniviron. Earth Sci., Assoc. Prof., 大学院・地球環境科学研究科, 助教授 (30237797)
YAMANAKA Manabu  Kobe Univ. Grad Shool of Science and Technology, Prof., 大学院・自然科学, 教授 (30183982)
OHTE Nobuto  Kyoto Univ. Grad. School of Agriculture, Assic. Prof., 農学研究科, 助教授 (10233199)
KAIHOTSU Ichiro  Hiroshima Univ. Fuculty of Integrated Arts and Sci. Prof., 総合科学部, 教授 (60160959)
OHATA Testsuo  Hokkaido Univ. Inst. of Low Temperature, Prof., 低温科学研究所, 教授 (90152230)
中尾 正義  名古屋大学, 大気水圏科学研究所, 助教授 (90142695)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1998: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordswater cycle / isotopic composition of water / Sibcria / Tibet / groundwater / 安定同位体 / 土壌 / 植生 / 水蒸気 / 東南アジア熱帯林
Research Abstract

1) Hydorologycal Research in Kiryu watershed
Stable isotopic compositions of water were measured for precipitation, soil water, groundwater, water in plants, spring water and stream water taken in Kiryu watershed (Otsu, Shiga Prefecture). From those data, information on the charge and discharge processes of groundwater were obtained.
2) Network on precipitation sampling in Siberia, Tibet and SE Asia
Sampling network was discussed for better understanding of water cycle. Precipitation samplings have been started at several sites in Siberia and Tibet. Sampling interval is important for obtaining the information with various time and spatial information. Data with short interval (5 to 10min) include the information on precipitation process in or around clouds. Daily data have information on the precipitation process and also origin of water vapor.
3) Isotope model derived into atmospheric general circulation model was improved. Simulated results on the vertical profile of isotopic composition of water vapor was interestingly different from what has been believed.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] Ohte,N., Tokuchi,N.: "Geographic variation of the acid buffering of vegetad catchments : Factors determiming the bicarbonate leaching"Global Biogeochemical Cycles. 13. 969-996 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Numaguti,A., Tujimura, M. (他5名): "Large-Scale Hydrological Cycle in Tibet Revealed by Water Tracer chirculation Mdels and Isotope Observations."Proceedings of the 1st International Workshop on GAME Tibet. 1. 55-58 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 高橋和誌、杉本敦子: "水の安定同位体比利用による「植物・植生と木の関わり」の解析"日本生態学会誌. 49. 59-62 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ohte, N., and Tokuchi, N: "Georgraphical variation of the acid buffering of vegetated catchments : Factors determining the bicarbonate leaching."Global Biogeochemical Cycles. 13. 969-996 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Numaguti, A., M. Tsujimura: "Large-Scale Hydrological Cycle in Tibet Revealed by Water Tracer Circulation Models and Isotope Observations."Proceedings of the 1ィイD1stィエD1 International Workshop on GAME Tibt. vol.1. 55-58 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takahashi, K., Sugimoto, A.: "The use of stable isotope ratios of water as indicators of the relations between water and vegetation."Japanese Journal of Ecology. 49. 59-62 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ohte,N.,Tokuchi,N: "Geographical variation of the acid buffering of vegetated catchments : Factors determining the bicarborate leaching"Global Biogeochemical Cycles. 13. 969-996 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Numaguti,A.,Tsujimura,M.(他5名): "Large-Scale Hydrological Cycle in Tibet Revealed by Water Tracer Circulation Models and Isotope Observations"Proceedings of the 1st International Workshop on GAME Tibet. 1. 55-58 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 高橋和誌、杉本敦子: "水の安定同位体比利用による「植物・植生と水の関わり」の解析"生態学会誌. 49. 59-62 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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