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Rates of soil formation

Research Project

Project/Area Number 04453127
Research Category

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

Allocation TypeSingle-year Grants
Research Field 土壌・肥料
Research InstitutionShimane University

Principal Investigator

WAKATSUKI Toshiyuki  Shimane University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (50127156)

Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1993: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1992: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordsrate of soil formation / watershed / critical acid precipitation load / rate of weathering / soil erosion / soil degradation / G.Gadut watershed / geochemical mass balances / 地球化学的マスバランス / ガド山集水域 / 母材 / 降雨 / 河川水 / 酸性雨 / 熱帯 / 土壌生成
Research Abstract

(1). The first approximation of restes of weathering and soil fromation : A new method for evaluation of raytes of weathering and soil formation was proposed. For the elements derived from rocks, geochemical mass balances were assumed to exist between parent rocks, soils, and river waters. Seven mass balance equations, which include the rates of weathering (denoted as R) and soil formation (denoted as S) in unknown quantitites, were set up using the data of Al, Fe, Ca, K,Na, and Si. Solution of simultaneous equations gave vakues of R and S.
(2). The multiple regression method for estimating rates of weathering and soil formation : Distribution of the seven maojer elements among rocks, soils, river water precipitation and vegetation were formulated in seven mass balance equations. Multiple regression analysis gave one set of the most probable values of rates of weathering and soil formation in a watershed.
(3). Characterization of precipitation and river water chemistry for measuring rates of weathering and soil formation in small watersheds : The precipitation and river water chemistry were characterized in three small subwatersheds of the Iu river, southwestern Japan. The monitoring of the precipitation and river water was continued during April 1989-March 1992. The three subwatersheds consist of different geological materials : andesite, granite, and basic pyroclastic materials.
(4). Rock and soil chemistry in small watersheds : Characterization of rocks and soils from andesitic and garnitic subwatersheds was done. Heterogenity of soil due to topografic positions was observed. Sampling strategy for rocks and soils were proposed.
(5). Characterization of tropical watershed of Wes Sumatra : For case study, long term monitoring was continued during September 1991 to December 1992 at andesitic small watershed in G.Gadut catchment area, West Sumatra, Indonesia.

Report

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

    (26 results)

All Other

All Publications (26 results)

  • [Publications] T.Wakatsuki et al.: "Multi-Soil-Layering Method for high performance and N & P removable septic tank leachline field" Proceedings of 15th International Conference of Soil Science,Acapulco,Mexico. Vol 3b. 436-437 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] R.Azwar and T.Wakatsuki: "Characterization of Precipitation and river water chemistry for measuring rates of weathering and soil formation in Iu river watersheds,southwestern Japan." Soil Science and Plant Natrition. 40. 319-332 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 若月 利之: "熱帯の土と人と持続的農業/熱帯アフリカの土と農業の再生と水田農業の可能性" Tropics. 3. 3-17 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuk,他: "Characterization of rock and soil chemistry for measuring rates of weathering and soil formation in granitic and andesitic small watersheds" Soil Science and Plant Nutrition. (投稿予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] R.N.Icsaka,T.Wakatsue 他: "Soils of Inland Valleys of West Africa:General fertility parameters" Soil Science and Plant Nutrition. (投稿中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] R.N.Issaka,T.Wakatsuki 他: "Soils of Inland Valleys of West Africa:Geographical distribution of selected soil fertility parameters" Soil Science and Plant Nutrition. (投稿中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 若月 利之 他: "新版稲作技術協力マニュアル(基本編)西アフリカ・稲作" 全国農業改良普及協会, 292 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 楠田 哲也編,須藤 隆一,若月 利之 他: "自然の浄化機構の強化と制御" 技報堂, 242 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuki, et al: "Multi-soil-layring method for high performance and N&P removable septic tank leachline field" Proceedings, 15th International Conf.Soil Science, Mexico. Vol 3b. 436-437 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] R.Azwar, T.Wakatsuki: "Characterization of precipitation and river water chemistry for measuring rates of weathering and soil formation in Iu river watershed, southwestern Japan." Soil Sci.Plant Nutr.40. 319-332 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuki: "Soils, people, and sustainable agriculture in Tropics/Potential of Sawah based agriculture in tropical Africa" Tropics. 3. 3-17 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuki, et al.: "Multiple regression method for estimating rates of weathering and soil formation in watershed" Soil Sci.Plant Nutr.39. 153-159 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuki and R.Azwar: "Rates of weathering and soil formation" Geoderma. 52. 251-263 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Wakatsuki et al.: "Multi-Soil-Layering Method for high performance and N&P removable septic tank leachline field." Proceedings of 15th International conference of soil Science,Acapulco,Mexico. Vol.36. 436-437 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] R.Azwar,T.Wakatsuki: "Characterization of precipitation and river water chemistry for measuring rates of weathering and soil formation in Iu river watershed,South western Japan" Soil Science and Plant Nutrition. 40. 319-332 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 若月利之: "熱帯の土と人と持続的農業/熱帯アフリカの土と農業の再生と水田農業の可能性" Tropics. 3. 3-17 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 若月利之: "パキスタン,インダス平原の塩害による土壌劣化調査ノート" Tropical Ecology letters. 13. 4-9 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Wakatsuki 他: "Multiple regression method for estimating rates of weathering and soil formation in watersheds" Soil Science and Plant Nutrition. 39. 153-159 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Wakatsuki 他: "Rates of weathering and Soil formation" Geoderma. 52. 251-263 (1992)

    • Related Report
      1994 Annual Research Report
  • [Publications] 若月利之 他: "新版稲作技術協力マニュアル(基本編)西アフリカ・稲作" 全国農業改良普及協会, 292 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 楠田哲也編,須藤隆一,若月利之他: "自然の浄化機構の強化と制御" 技法堂, 242 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.WAKATSUKI 他: "Multiple regression method for estimating rates of weathering and soil formation in watershed" Soil Science and Plant Nutrition. 39. 153-159 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 若月利之: "熱帯の土と人と持続的農業" Tropics. 3. 3-17 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Rasyidin and T.Wakatsuki: "Characterization of precipitation and river water chemistry for measuring the rates of weathering and soil formation in small watersheds" Soil Science and Plant Nutrition. 40. (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.WAKATSUKI: "Rates to Weathering and soie Formation" Geoderma. 52. 251-263 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.WAKATSUKI: "Multiple regression method for estimating rates of Weathering and soil formation in Watersheds" Soil Sciene and Plant Nutition. 39. (1993)

    • Related Report
      1992 Annual Research Report

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

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