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Controlling soil hydraulic conductivity with the control of microbial activity

Research Project

Project/Area Number 10556049
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field Irrigation, drainage and rural engineering/Rural planning
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

MIYAZAKI Tsuyoshi  Graduate School of Agriculture and Life Sciences, THE UNIVERSITY OF TOKYO, Professor, 大学院・農学生命科学研究科, 教授 (00209892)

Co-Investigator(Kenkyū-buntansha) SEKI Katsutoshi  Graduate School of Agriculture and Life Sciences, THE UNIVERSITY OF TOKYO, Instructor, 大学院・農学生命科学研究科, 助手 (40313069)
MIZOGUCHI Masaru  Graduate School of Agriculture and Life Sciences, THE UNIVERSITY OF TOKYO, Associate Professor, 大学院・農学生命科学研究科, 助教授 (00181917)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2000: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1999: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsMicrobial effect / Hydraulic conductivity / Pore structure / Atomic Froce Microscopy (AFM) / Clogging / Pore size / Methane / 目詰まり / 微生物コントロール / 透水係数 / 原子間力顕微鏡 / 土粒子
Research Abstract

This research aims at developing a technique to control water permeability of soils to required values by multiplying the microbe in soil or making it decrease. In a model experiment, hydraulic conductivity changes of the glass beads of different diameters were measured. Hydraulic conductivity at the upper layer decreased more rapidly for smaller particle diameter beads, because the nutrient was mainly consumed at the upper layer resulting in less nutrient at the lower layer. In on-site measurement at Bibai peatland in Hokkaido District, methane gas produced by bacteria is accumulated in the ground. To simulate this methane producing process, a laboratory column experiment was conducted. When the groundwater level was lowered by 10cm, the redox potential at the 5cm depth decreased to less than -150mV at 6 day after the start of percolation. As a result, a lot of methane emission into the atmosphere was observed. Based on the result of the above experiment and on-site measurement a mathematical model explaining the hydraulic conductivity decrease by microbial activity was built. The difference in particle diameter influences microbial growth rate and a colony formation phenomenon was expalined by this model.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] K.Seki and T.Miyazaki: "A mathematical model for biological clogging of uniform porous media"Water Resources Research. (印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 井本博美,宮毅毅,中野政詩: "土壌断面に現れる堆積履歴、人為履歴について-美唄湿原地帯の土壌物理性(I)-"土壌の物理性. (印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 井本博美,宮毅毅,斉藤広隆,中野政詩: "泥炭土の透水性および保水性について-美唄湿原地帯の土壌物理性(II)-"土壌の物理性. (印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 藤川智紀,宮崎毅,関勝寿,中野政詩: "田畑輪換圃場における土壌微生物数分布とCO_2、O_2ガス濃度分布の相関について"農業土木学会論文集. 208. 19-28 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.Zhuang,K.Nakayama,G.R.Yu,and T.Miyazaki: "Scaling of Saturated Hydraulic Conductivity : A Comparison of Models"Soil Science. Vol.165 No.9 :. 718-727 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 飯山一平,宮崎毅,中野政詩: "地下水位変動に伴う泥炭土の収縮・膨張について"農業土木学会論文集. 205. 1-11 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 宮崎毅: "環境地水学"東京大学出版会(単著). 196 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.Zhuang,G.Yu,T.Miyazaki,K.Nakayan: "Advances in Geoecology 32, Subsoil Compaction"Catena Verlag GMBH(分担執筆). 462 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Seki and T.Miyazaki: "A mathematical model for biological clogging of uniform porous media"Water Resources Research. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.Zhuang, K.Nakayama.G.R.Yu. and T.Miyazaki: "Scaling of saturated hydcomparison of models"Soil Science. 165. 718-727 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Fujikawa, T.Niyazaki, K.Seki and M.Nakano: "Correlation between the distribution of microorganisms and CO_2 and O_2 gas concentrations in a field under rotating use"Transactions of Japanese Society of Irrigation Drainage and Reclamation Engineering. 208. 19-28 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] "Features of soil physical profiles generated by accumulation processes and anthropogenic effects -Soil physical properties of Bibai peat land (I)-"Journal of the Japanese Society of Soil Physics. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] "Permeability and water retentivity of peat soil -Soil physical properties of Bibai Peat land (II)-"Journal of the Japanese Society of Soil Physics. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Seki and T.Miyazaki: "A mathematical model for biological clogging of uniform porous media"Water Resources Research. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 井本博美,宮毅毅,中野政詩: "土壌断面に現れる堆積履歴、人為履歴について-美唄湿原地帯の土壌物理性(I)-"土壌の物理性. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 井本博美,宮毅毅,斉藤広隆,中野政詩: "泥炭土の透水性および保水性について-美唄湿原地帯の土壌物理性(II)-"土壌の物理性. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 藤川智紀,宮崎毅,関勝寿,中野政詩: "田畑輪換圃場における土壌微生物数分布とCO_2、O_2ガス濃度分布の相関について"農業土木学会論文集. 208. 19-28 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] J.Zhuang,K.Nakayama,G.R.Yu,and T.Miyazaki: "Scaling of Saturated Hydraulic Conductivity : A Comparison of Models"Soil Science. Vol.165 No.9:. 718-727 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 飯山一平,宮崎毅,中野政詩: "地下水位変動に伴う泥炭土の収縮・膨張について"農業土木学会論文集. 205. 1-11 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 宮崎毅: "環境地水学"東京大学出版会(単著). 196 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] J.Zhuang,G.Yu,T.Miyazaki,K.Nakayam: "Advances in Geoecology 32, Subsoil Compaction"Catena Verlag GMBH(分担執筆). 462 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Seki,T.Miyazaki & M.Nakano: "Effects of Microorganisms on Hydraulic Conductivity Decrease in Infiltration" European Journal of Soil Science. 49. 231-236 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 末継淳、井本博美、宮崎毅 他1名: "下水汚泥水溶液のゾル・ゲル転移的挙動について" 農業土木学会論文集. 198. 47-52 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 宮崎毅(共著): "豊かな土づくりをめざして-環境土壌学-" 農業土木学会, 186 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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