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Development of integrated hydro-biogeochemical model in a forest catchment

Research Project

Project/Area Number 08660186
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 林学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

OHTE Nobuhito  Kyoto University, Graduate School of Agriculture, Associate Professor, 農学研究科, 助教授 (10233199)

Co-Investigator(Kenkyū-buntansha) KOSUGI Yoshiko  Kyoto University, Graduate School of Agriculture, Instructor, 農学研究科, 助手 (90293919)
KOSUGI Ken'ichirou  Kyoto University, Graduate School of Agriculture, Instructor, 農学研究科, 助手 (30263130)
TOKUCHI Naoko  Kyoto University, Graduate School of Agriculture, Instructor, 農学研究科, 助手 (60237071)
TSUJIMURA Maki  Aichi University of Education, Department of Earth Environmental Science, Assist, 地球環境科学, 助手 (10273301)
TAKEDA Hiroshi  Kyoto University, Graduate School of Agriculture, Professor, 農学研究科, 教授 (60109048)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordstemperate forest catchment / hydrological processes / biogeochemistry / soi CO_2 gas / decomposition / forest ecosystem
Research Abstract

An integrated hydrochemical model for description and forecast of biogeochemical responses in a forest catchment has been developed based on intensive observation in a temperate forest catchment. As the prototype of the basin-scale hydrochemical modeling taking the saturated-unsaturated infiltrated into the soil chemical process, a numerical model for SiO_2 concentration generation was proposed. The process oriented 1-D pH simulation model and nitrogen/carbon dynamics model were also proposed. The basin-scale model has multiple subunits with each soil depth that is determined by actual soil depth distribution. A coupling calculation of saturated-unsaturated infiltration and convection-diffusion process is conducted for each subunit using observed rainfall quantity and quality data set. Using the properly estimated chemical weathering rate, the model can reproduce the observed timesequential change of the SiO_2 concentration of stream and subsurface groundwater for the duration of both storm event and base flow periods. The 1-D pH simulation model is based on the observed information of buffering systems in actual soil layr. The model simulates the CO_2 gas profile and alkalinity of soil solution. It can successfully reproduce the seasonal changes in pH of groundwater and streamwater.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Ohte, N.et al.: "An insitu lysimeter experiment on soil moisture influence for inorganic nitrogen discharge from forest soil" Journal of Hydrology. 195. 78-98 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N and Asano Y.: "Global comparison of the pH determining factors of the stroamwaters in world forest tasins" IAHS Publication. 244. 253-265 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 浅野 友子・大手 信人・小橋 登治: "森林の成立過における水質形成機構の変化" 京都大学演習林報告. 68. 25-42 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 浜田 美鈴・大手 信人・小橋 登治: "森林流域における土壌CO_2ガス濃度の鉛直分布" 日本林学会誌. 78. 376-383 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 武田 博清: "森林生態系における物質循環のしくみ" 化学と生物. 35. 26-31 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Taniguch, M et al.: "Significance of Stemflow in Ground water Recharge" Hydrological Processes. 10. 71-80 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 大手 信人・辻村 真貴 他: "水文地形学" 古今書院, 267 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N.and Asano, Y.et al.: "Subsurface Hydrolorical Responses to Land Use Changes" Kluwer Academic Publishers, 226 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N., Tokuchi, N.and Suzuki, M.: "An in situ lysimeter experiment on soil moisture influence for inorganic nitrogen discharge from forest soil" Journal of Hydrology. No.195. 78-98 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N.and Asano, Y.: "Global comparison of the pH determining factors of the streamwaters in world forest basins." IAHS publication. No.244. 253-265 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Asano, Y.Ohte, N.and Kobashi, S.: "Changes of hydrochemical processes along forest succession : Catchment observation on the three different successional stages (in Japanes with English summary)" Bull.of The Kyoto Univ. For. 68. 25-42 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hamada, M., Ohte, N.and Kobashi, S.: "A measurement of soil CO2 profile in a forest watershed. (in Japanes with English summary)" J.Jpn.For.Soc.78. 376-383 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takeda, H.: "Carbon and nutrient cycling in forest ccosystems (in Japanes)" Kagaku to Seibutsu. 35. 26-31 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Taniguchi, M,Tsujimura, M.and Tanaka, T.: "Significance of stemflow in groundwater recharge. 1 : Evaluation of the stemflow contribution to recharge using a mass balance approach" Hydrological processes. 10. 71-80 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N: Generating processes of subsurface water chemistry. Edited by Y.Onda et al. "Hydrogeomophology" (in Japanes). Kokon-Shoin, 67-78 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohte, N.and Asano, Y.: Comparison of the pH determining factor of the streamwater in world forest watershed. Edited by M.Taniguchi et al. "Subsurface Hydrological Responses to Land Cover and Land Use Changes". Kluwer Academic Publishers, 105-120 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nobuhito Ohte,Naoko Tokuchi and Masakazu Suzuki: "An is situ lysimeter experiment on soil moisture influence for inorganic nitrogen discharge from forest soil" Journal of Hydrology. (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Ohte N.and Asano.Y: "Global comparison of the pH determining factors of the streamwaters in world forest basins" IAHS publication. (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 浅野友子・大手信人・小橋澄治: "森林の成立過程における水質形成機構の変化" 京都大学演習林報告. 68. 25-42 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 浜田美鈴・大手信人・小橋澄治: "森林流域における土壌CO_2ガス濃度の鉛直分布" 日本林学会誌. 78. 376-383 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 武田博清: "森林生態系における物質循環のしくみ" 化学と生物. 35. 26-31 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Taniguchi M,Tsujimura M and Tanaka,T: "Siguificance of Stemflow in Grourdwater Richorge" Hydrological Procsses. 10. 71-80 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 大手信人・辻村真貴 他: "水文地形学" 古今書院, 267 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Onte,N and Asano,Y et al.: "Subsurface Hydrological Responses to Land Use Changes" Kluwer Academic Publishers(in press), (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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