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Studies on the development of crown morphology with growing stage in beech (Fagus crenata) forest

Research Project

Project/Area Number 02660151
Research Category

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

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionYamagata University

Principal Investigator

TAKAHASHI Norio  Yamagata University, Faculty of Agriculture Associate Professor, 農学部, 助教授 (70179505)

Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsSecondary beech forest / Tree crown / Radio controlled helicopter / ブナ / 二次林 / 空中写真
Research Abstract

This investigation deals with the development of crown morphology in accordance with the growing stage in beech stands. A permanent experimental plot was set in the secondary beech stand, located north of Mt. Gassan in Ymagata Prefecture.
In order to record conditions of tree crowns, vertical photographs on the ground and aereal photographs with radio controlled helicopter were tested.
The results may be summarized as follows :
1. The crown density of this experimental stand is very high(>90%), and the relative light intensity is under 5% at the level of 5m above ground.
2. There are extremely few seedlings of beech over 20cm in stem height.
3. It seems that the fruit-bearing of beech stand with extremely high crown density is less than that with moderate density.
4. The number of the tree over 5cm in DBH is 818 per ha, and the total volume is estimated to be about 306m^3/ha in the study plot.
5. This stand will be thinned and 29% of standing volume will be removed next year. The change of tree crowns should be investigated after the thinning.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 高橋 教夫: "上名川演習林におけるブナ二次林の萌芽株について" 山形農林学会報. 47. 43-46 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高橋 教夫: "ブナ二次林の豊作年における結実状態について" 日本林学会東北支部会誌. 43. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高橋 教夫: "間伐前の閉鎖したブナ二次林における稚樹の成長と消失について" 日本林学会東北支部会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Norio TAKAHASHI: "Sprouts in Secondary Beech Forest in Yamagata University forest" J. Yamagata Agriculture and Forestry Society. 47. 43-46 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Norio TAKAHASHI: "Seed production in a secondary beech (Fagus crenata) stand in good seed years" Transaction of the Tohoku Branch of the Japanese Forestry Society. 43. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Norio TAKAHASHI: "Dynamics of seedlings before thinning in a secondary beech (Fagus crenata) forest" Transaction of the Tohoku Branch of the Japanese Forestry Society. 44. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高橋 教夫: "ブナ二次林の農作年における結実状態について" 日本林学会東北支部会誌. 43. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高橋 教夫: "間伐前の閉鎖したブナ二次林における稚樹の成長と消失について" 日本林学会東北支部会誌. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高橋 教夫: "上名川演習林におけるブナ二次林の萌芽株について" 山形農林学会報. 47. 43-46 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 高橋 教夫: "ブナノキ二次林の豊作年における結実状態について" 山形大学紀要(農学編). (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 高橋 教夫: "閉鎖したブナノキ二次林における稚樹の成長と消失について" 日本林学会東北支部会誌. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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