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Effects of Multi-Storied Forest on Wood Quality

Research Project

Project/Area Number 01480067
Research Category

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

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionIwate University

Principal Investigator

ANDO Takashi  Iwate, Univ., Fac. Agr., Professor, 農学部, 教授 (90202788)

Co-Investigator(Kenkyū-buntansha) SEKINO Noboru  Iwate Univ., Fac. Acr., Associate Professor, 農学部, 助教授 (30171341)
SAWABE Osamu  Iwate Univ., Fac. Agr., Professor, 農学部, 教授 (90003780)
SHIBATA Nobuaki  Iwate Univ., Fac. Agr., Associate Professor, 農学部, 助教授 (70003762)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1990: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1989: ¥3,000,000 (Direct Cost: ¥3,000,000)
Keywordsmulti-storied forest / underplanting tree / Sugi (Cryptomeria japonica) / Hinoki (Chamaecyparis obtusa) / length of thacheid / juvenile wood / specific gravity / compressive strength / 仮重管長 / 基礎材質
Research Abstract

The purpose of this report is to clear the wood qualities of Sugi (Cryptomeria japonica) and Hinoki (Chamaecyparis obtusa) of underplanting trees in two-storied forest compared with single-storied forest.
When underplanting trees are grown up under suitable light conditions, no difference in length of tarcheids and rings from the pith of boundary of juvenile wood region between the underplanting and single-storied trees is recognized. Boundary of juvenile wood, whereas, for underplanting trees grown under poor light condition was larger than that of sutable light condition.
The specific gravity of underplanting Sugi trees slightly higher than that of the single-storied ones. The same tendency is recognized in underplanting Hinoki trees under poor light condition.
There is, however, no distinct difference between underplanting Hinoki trees under suitable light condition and single-storied ones.
There is no significant difference in compressive strength for both species between underplanting and single-storied trees.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 安藤 貴: "スギの二段林下木と単層林立木の直径生長の経過" 101回日林論. 57-58 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 沢辺 攻: "スギの基礎材質に及ぼす複層林施業の影響" 40回日本木材学会大会研究発表要旨集. 10 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 安藤 貴: "ヒノキの二段林下木と単層林立木の直径成長の経過" 102回日本林学会大会発表予定. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 渡辺 攻: "ヒノキの基礎材質に及ぼす複層林施業の影響" 41回日本木材学会大会発表予定. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] ANDO. T et al: "Diameter growth of underplanting trees in two-storied forest and trees in single-storied forest of Sugi (Ctyptomeria japonica)" Trans, 101st Mtg. Jpn. For. Soc.,. 57-58 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 安藤 貴: "スギの二段林下木と単層林立木の直径生長の経過" 101回日林論. 57-58 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 沢辺 攻: "スギの基礎材質に及ぼす複層林施業の影響" 40回日本木材学会大会研究発表要旨集. 10 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 安藤 貴: "ヒノキの二段林下木と単層林立木の直径成長の経過" 102回日本林学会大会発表予定. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 沢辺 攻: "ヒノキの基礎材質に及ぼす複層林施業の影響" 41回日本木材学会大会発表予定. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 安藤貴: "スギの複層林下木と単層林立木の直径成長経過の比較" 101回日本林学会大会講演要旨集. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 沢辺攻: "スギの基礎材質に及ぼす複層林施業の影響" 40回日本木材学会大会研究発表要旨集. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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