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Study on stable isotope ratio of environmental pollutants behavior in agricultural ecosystem

Research Project

Project/Area Number 04403022
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 土壌・肥料
Research InstitutionTokyo University of Agriculture

Principal Investigator

KUMAZAWA Kikuo  Tokyo University of Agriculture Professor, 農学部, 教授 (00011825)

Co-Investigator(Kenkyū-buntansha) KATO Shigeru  Tokyo University of Agriculture Associate Professor, 農学部, 助教授 (90147489)
USHIKUBO Akikuni  Tokyo University of Agriculture Associate Professor, 農学部, 助教授 (60078219)
YOSHIBA Masaaki  Tokyo University of Agriculture Associate Professor, 農学部, 助教授 (20078190)
OHSAWA Kanju  Tokyo University of Agriculture Professor, 農学部, 教授 (90078189)
TAKENAGA Hiroshi  Tokyo University of Agriculture Professor, 農学部, 教授 (80078154)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥27,900,000 (Direct Cost: ¥27,900,000)
Fiscal Year 1994: ¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1993: ¥7,900,000 (Direct Cost: ¥7,900,000)
Fiscal Year 1992: ¥13,000,000 (Direct Cost: ¥13,000,000)
Keywordsisotope ratio / acid rain / methane gas / polyaromatic hydrocarbon / pollutants / nitrate ion / sulfate ion / δ^<34>S / delta^<15>N1 / delta^<34>S / 地球環境温暖化ガス / σN^<15> / σS^<34>
Research Abstract

Research on influence of pollutants from non agricultural field to agricultural production fields is a very important and urgent research theme. Also, many pollutants breakout from agricultural fields (methane, nitrate ion, etc.). Establishment of a elimination method of these pollutants is very important.
Analysis technics of isotope ratio (^<15>N,^<34>S,^<18>O) was discussed and trained as research during the first year. Research sites were set up, collection of agricultural crops (rice, wheat, beans etc.), continuous under ground water sampling and ion components analysis of it, outbreak mechanisms of methane gas from paddy field and transportation process of acid precipitation (acid rain) were researched in the 2nd research year. More detail study on the 2nd year research subjects were done in the 3rd research year. Research abstracts are as follows : (1) Nitrate ion concentration was changeable with seasons, depending on how much of chemical fertilizers is used and composts for crop production and waste water from housing sites. (2) Methane outbreak from paddy field was inhibited with ferrous and ammonium sulfate. (3) Acid rain of Japan and main land China were collected and analyzed. Sulfate ion concentration was most high and sulfate ion and nitrate ion in the forest rain was recognized as having very high concentration. (4) Precipitation amount of polyaromatic hydrocarbons from the atmosphere depended on collection point and these amounts gradually decreased with distance from the generation point. Precipitation amount of polyaromatic hydrocarbon in the forest rain was higher than outside rain of forest.
Practiced minuteness isotope ratio analysis is distinctively a very useful analysis method for tracing study of environmental chemical pollutants

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 山本洋司,朴光耒,中西康博,加藤茂,熊澤喜久雄: "宮古島の地下水中の硝酸態窒素濃度とδ^<15>N値" 日本土壌肥料学会誌. 66. 18-26 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 朴光耒,山本洋司,日高伸,加藤茂,熊澤喜久雄: "埼玉県における露地野菜畑土壌からの浸透水中のNO_3N濃度とδ^<15>N値" 日本土壌肥料学会誌. 66. 146-154 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Kwang-Lai Park, Youji Yamamoto, Shin HIdaka, Shigeru Kato and Kikuo Kumazawa: "Nitrate concentrations and ^<15>N value from vegetable soil to infiltration water in Saitama" Japan J.Soil Sci.Plant Nutr.Vol.66, No.2. 146-154 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Youji Yamamoto, Kwang-Lai Park, Yasuhiro Nakanishi, Shigeru Kato and Kikuo Kumazawa: "Nitrate concentrations and ^<15>N values of groundwater in the Miyako-jima Island" Japan J.Soil Sci.Plant Nutr.Vol.66, No.1. 18-26 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 山本洋司,朴光泳,中西康博,加藤茂,熊澤喜久雄: "宮古島の地下水中の硝酸態窒素濃度とδ^<15>N値" 日本土壌肥料学会誌. 66. 18-26 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 朴光泳,山本洋司,日高伸,加藤茂,熊澤喜久雄: "埼玉県における露地野菜畑土壌からの浸透水中のNO_3-N濃度とδ^<15>N値" 日本土壌肥料学会誌. 66. 146-154 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 牛久保 明邦 他4名: "中国・重慶における酸性雨の化学組成" 環境科学学会(1993-12). (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 山本 洋司,朴 光来,中西 康博,加藤 茂,熊澤 喜久雄: "宮古島の地下水中の硝酸態窒素濃度とdelta^<15>N値(予報)" 日本土壌肥料学会(1993年度4月沖縄大会). 要旨集39. 174- (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 中西 康博,山本 洋司,加藤 茂,熊澤 喜久雄: "サトウキビに施肥された窒素の動態-ライシメーター試験(その1)" 日本土壌肥料学会 平成5年度九州支部秋季大会(1993-9)〔第56回 九州農業研究発表会〕. 要旨集. 29- (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 朴 光来,山本 洋司,中西 康博,熊澤 喜久雄: "土壌よりのアンモニア揮散とdelta^<15>N値(その1)" 日本土壌肥料学会 関東支部大会(1993-10). 要旨集. 27- (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] YAMAMOTO.Y,PARK.K,NAKANISHI.Y,KATO.S,KUMAZAWA.K,: "Nitrate Concentration and delta^<15>N Value of Grand water in the Miyakojima Island,Okinawa Prefecture Japan." 15 th ICSS:MEXICO,(Poster Session)1994-7. No Reg.1145 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 朴 光来,山本 洋司,日高 伸,熊澤 喜久雄: "埼玉県における野菜土壌からの浸透水中のNO^-_3N濃度とdelta^<15>N値" 日本土壌肥料学会 1994年度京都大会(1994-4). 要旨集40. (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 山本 洋司,朴 光来,中西 康博,長田 実也,熊澤 喜久雄: "宮古島の地下水流域および関連土壌水のNO^-_3N濃度とdelta^<15>N値" 第31回理工学における同位元素研究発表会(1994-7). (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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