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2006 Fiscal Year Final Research Report Summary

Clarification of soil degradation mechanism in dryland and environmental restoration for sustainable agriculture development

Research Project

Project/Area Number 16380050
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Plant nutrition/Soil science
Research InstitutionTottori University

Principal Investigator

HONNA Toshimasa  Tottori University, Faculty of Agriculture, Professor, 農学部, 教授 (90093624)

Co-Investigator(Kenkyū-buntansha) FUJIYAMA Hideyasu  Tottori University, Faculty of Agriculture, Professor, 農学部, 教授 (90108796)
KITAMURA Yoshinobu  Tottori University, Faculty of Agriculture, Professor, 農学部, 教授 (80284008)
INOUE Mitsuhiro  Tottori University, Arid land research center, Associate professor, 乾燥地研究センター, 助教授 (90032309)
YAMAMOTO Sadahiro  Tottori University, Faculty of Agriculture, Associate professor, 農学部, 助教授 (30200801)
YAMADA Satoshi  Tottori University, Faculty of Agriculture, Associate professor, 農学部, 助教授 (80294346)
Project Period (FY) 2004 – 2006
Keywordsdryland / irrigation farmland / soil salinization / soil test / water saving / undergrouond water / Baja California / salt damage
Research Abstract

To improve the sustainability of the dry land agriculture, appropriate management and rehabilitation methods of salt affected soils were developed based on the analysis of status and causes of soil salinization,
1) In Baja California Sur, Mexico, most of irrigation water (underground water) and top soil were salinzed, and have been aggravated in some area. Soil salinization process was mainly explained by two factors. One was irrigation water quality and quantity that influenced salt addition and another was soil texture of subsoils that influenced salt leeching. Proper irrigation management, that is "water-saving", is the key method to solve soil salinization and to recover water resources.
2) A convenient procedure to assess soil salinization risk (SSR) was developed. SSR was determined by the sum of the points of various factors that relate to soil salinization. By using the procedure, not only the state but also the cause of salinization was assessable.
3) High sustainability of the flood use farming system was verified. Agricultural utilization of surface runoff including suspended sediment in dryland was an extremely useful method, because this method had the following excellent effect ; storage of water, soil fertility improvement by deposition of suspended sediment and salt leeching in saline soil.
4) It was clarified that Kochia scoparia, which had strong tolerance for salinity and water shortage, was able to maintain good growth under highly saline condition and would be a promising forage crop in dry region where the salt damage progressed. The mechanism of elongation growth of seedling of Salicornia herbacea that was a promising plant for phytoremediation of salinaized land was clarified under high concentration NaC1 solution.
5) Combination use of a plant residue and sulfur might effectively improve sodicity level of soils by enhancing solubility of calcium.

  • Research Products

    (18 results)

All 2006 2005 2004

All Journal Article (16 results) Book (2 results)

  • [Journal Article] Causes of farmland salinization and remedial measures in the Aral Sea basin - Research on water management to prevent secondary salinization in rice-based cropping system in arid land2006

    • Author(s)
      北村義信
    • Journal Title

      Agricultural Water Management 85(1-2)

      Pages: 1-14

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 異なる塩処理が塩性植物Salicornia bigeloviiの無機成分に及ぼす影響2006

    • Author(s)
      韓文軍
    • Journal Title

      砂漠研究 16(1)

      Pages: 19-24

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Causes of farmland salinization and remedial measures in the Aral Sea basin-Research on water management to prevent secondary salinization in rice-based cropping system in arid land2006

    • Author(s)
      Yoshinobu Kitamura
    • Journal Title

      Agricultural Water Management 85(1-2)

      Pages: 1-14

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effects of various salt concentrations on the inorganic elements of a halophyte Salicornia bigelovii Torr.2006

    • Author(s)
      Wenjun HAN
    • Journal Title

      Journal of Arid Land Studies 16(1)

      Pages: 19-24

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The Reclamation of Saline Wastelands by Halophytes2005

    • Author(s)
      Muhammad Irshad
    • Journal Title

      J. Arid Land Studies 14(4)

      Pages: 199-207

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Nitrogen Mineralization under Saline Conditions2005

    • Author(s)
      Muhammad Irshad
    • Journal Title

      Commun. Soil Sci. Plant Anal. 36 (11&12)

      Pages: 1681-1689

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Classification of salinization processes in Luohui Irrigation Scheme, China -Part of water management research to prevent salinization in semiarid land-2005

    • Author(s)
      Habtu Solomon
    • Journal Title

      J. Arid Land Studies 15(2)

      Pages: 89-105

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The Reclamation of Saline Wastelands by Halophytes2005

    • Author(s)
      Muhammad Irshad
    • Journal Title

      Journal of Arid Land Studies 14(4)

      Pages: 199-207

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Nitrogen Mineralization under Saline Conditions2005

    • Author(s)
      Muhammad Irshad
    • Journal Title

      Commun.Soil Sci.Plant Anal. 36(11&12)

      Pages: 1681-1689

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Classification of salinization processes in Luohui Irrigation Scheme, China -Part of water management research to prevent salinization in semiarid land-2005

    • Author(s)
      Habtu Solomon
    • Journal Title

      Journal of Arid Land Studies 15(2)

      Pages: 89-105

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] プロファイル水分計を用いた不飽和透水係数の原位置試験法2004

    • Author(s)
      井上光弘
    • Journal Title

      農業土木学会論文集 231

      Pages: 39-45

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Interaction of Saline Water and Nitrogen on the Partitioning and Statistical Correlation of Mineral Elements in Maize Plant2004

    • Author(s)
      Muhammad Irshad
    • Journal Title

      Acta Agronomica Hungarica 52(2)

      Pages: 149-156

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The Effect of Salt Types on Nitrogen Release in Manured Soil2004

    • Author(s)
      Muhammad Irshad
    • Journal Title

      Sand Dune Research 51(2)

      Pages: 67-74

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Trace Elements Solubilization in Waste Amended Saline-Sodic Conditions2004

    • Author(s)
      Muhammad Irshad
    • Journal Title

      J. Food, Agriculture & Environment 2(3&4)

      Pages: 255-259

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] In-situ determination of unsaturated hydraulic conductivity using profile probe2004

    • Author(s)
      Mitsuhiro Inoue
    • Journal Title

      Trans, JSIDRE 231

      Pages: 39-45

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Trace Elements Solubilization in Waste Amended Saline-Sodic Conditions2004

    • Author(s)
      Muhammad Irshad
    • Journal Title

      J.Food, Agriculture & Environment Vol.2(3&4)

      Pages: 255-259

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 土壌サイエンス入門, ISBN4-8300-4107-2第12章 2. 地球環境問題と土壌の劣化(分担執筆)2005

    • Author(s)
      本名俊正
    • Total Pages
      318
    • Publisher
      文永堂出版
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] 12-2. Global environmental issues and soil degradation. In "Introduction to soil science" 1^<st> ed. (M.Saigusa and M. Kimura, ed.)2005

    • Author(s)
      Toshimasa Honna
    • Total Pages
      318(249-260)
    • Publisher
      Bun-eido, Tokyo
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27  

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