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Eco-physiological studies for establishment of the long rotation-operation of Cryptomeria

Research Project

Project/Area Number 01304018
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionKochi University

Principal Investigator

NAGAMORI Michio  Faculty of Agriculture, Kochi University Professor, 農学部, 教授 (60036704)

Co-Investigator(Kenkyū-buntansha) NINOMIYA Ikuko  Faculty of Agriculture, Ehime University Assistant Professor, 農学部, 助教授 (80172732)
OGINO Kazuhiko  Faculty of Agriculture, Ehime University Professor, 農学部, 教授 (90026394)
NISHIMURA Takeji  Faculty of Agriculture, Kochi University Assistant Professor, 農学部, 助教授 (30036743)
IKEMOTO Akiko  Faculty of Agriculture, Kochi University Professor, 農学部, 教授 (00093948)
ANDO Takashi  Faculty of Agriculture, Iwate University Professor, 農学部, 教授 (90202788)
赤井 龍男  京都大学, 農学部, 助教授 (90026625)
吉川 賢  高知大学, 農学部, 講師 (50166922)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥10,400,000 (Direct Cost: ¥10,400,000)
Fiscal Year 1991: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1990: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1989: ¥5,300,000 (Direct Cost: ¥5,300,000)
Keywordslong-term rotation operation / old-aged sugi forest / biomass / litter fall / frost crack / リタ- / スギ / 長伐期
Research Abstract

In anticipation of a possible increase in the production of fine long timber in the near future by virtue of long-term rotation operation that has lasted for more than 80 years, this study was designed to investigate various aspects of the physiological and ecological traits of old-aged sugi forests which have so far remained almost unexplored for this line of investigation. Research was carried out for old-aged sugi forests carried out for old-aged sugi forests at various districts from northern Honshu to southern Kyushu where members of the research team were assigned for investigation. Examined at each forest in this research were the stand structure, plant succession, primary production, existing biomass, annual increment, litter fall, crown structure, relation between crown and growth, frost crack in cold districts, phyllomic photosynthesis and respiration. At the Yanase Senbonyama National Forest in Kochi Prefecture, the stem distribution examined by the DBH and height classes we … More re both L-shaped. The trees still continued undisturbed growth. The vegetation at this forest was composed of shade-tolerant, evergreen broad-leaved trees such as Cleyera japonica, Illicium reliqiosum and Qurucus salicina. The existing biomass of an 87-year-old sugi forest at the Takizawa Experimental Plantation of Iwate University consisted of 179.4 tons/ha of stems, 24.5 tons/ha of branches and 17.4 tons/ha of leaves. The stem volume was 697.5 m^3/ha. The existing biomass of an 80-year-old sugi forest at the Okuminagawa National Forest in Kochi Prefecture consisted of 178.2 tons/ha of stems, 17.6 tons/ha of branches and 14.7 tons/ha of leaves. The stem volume was 596.1 m^3/ha. Frost cracking of stems in sugi forests at cold districts occurred frequently in more than 60-year-old forests. Diversified periods of rotation are currently debated, but the general trend tends to the long-term rotation system. It is considered that damages due to frost cracking would be actualized by the increased adoption of long-term rotation operation. On examining the crown structure of old-aged sugi forests, the crown volume was found to increase with the growth in height. The photosynthesis and respiration of sugi leaves were measured in the upper and lower stories separately. The details of the data are at present being arranged in order. Less

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 永森 通雄,西村 武二,池本 彰夫: "魚梁瀬千本山保護林の過去20年間の植生の推移" 高知大学農学部演習林報告(印刷中). 19. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 西村 武二,吉川 賢,池本 彰夫,永森 通雄: "高齢スギ人工林の現存量と成長経過(1)高知県本川村奥南川国有林80年生スギ林の場合" 高知大学農学部演習林報告(印刷中). 19. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 西村 武二,吉川 賢,池本 彰夫,永森 通雄,安藤 貴: "高齢スギ人工林の現存量と成長経過(2)岩手大学、滝沢演習林89年生スギ林の場合" 高知大学農学部演習林報告(印刷中). 19. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 吉田 茂二郎: "樹冠によるスギ単純同齢林の定期直径成長量の推定" 日本林学会誌. 73. 29-33 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Michio Nagamori, Takeji Nishimura and Akiko Ikemoto: "Twenty years of tree population change in an old-growth Cryptomeria japonica forest in Yanase." Bulletin of the Kochi University Forests.19. 1-52 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takeji Nishimura, Ken Yoshikawa, Akiko Ikemoto and Michiko Nagamori: "Biomass and growth of old Cryptomeria japonica Plantations." Bulletin of the Kochi University Forests.19. 73-81 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takeji nishimura, Ken Yoshikawa, Akio Ikemoto, Michio Nagamori and Takashi Ando: "Biomass and growth of old Cryptomeria japonica Plantations." Bulletin of the Kochi University Forests.19. 83-97 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shigejiro Yoshida: "Estimation of diameter periodic increment in even-aged stand of sugi (Cryptomeria japonica) based on crown." Journal of the Japanese Forestry Society.73. 29-33 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 永森 通雄,西村 武二,池本 彰夫: "魚梁瀬千本山保護林の過去20年間の植生の推移" 高知大学農学部演習林報告. 19. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 西村 武二,吉川 賢,池本 彰夫,永森 通雄: "高齢スギ人工林の現存量と成長経過(1)高知県本川村奥南川国有林80年生スギ林の場合" 高知大学農学部演習林報告. 19. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 西村 武二,吉川 賢,池本 彰夫,永森 通雄,安藤 貴: "高齢スギ人工林の現存量と成長経過(2)岩手大学滝沢演習林89年生スギ林の場合" 高知大学農学部演習林報告. 19. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 吉田 茂二郎: "樹冠によるスギ単純同齢林の定期直径成長量の推定" 日本林学会誌. 73. 29-33 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 永森 通雄,池本 彰夫,西村 武二,吉川 賢: "スギ高齢林分の現存量と過去の生長経過について" 高知大学農学部演習林報告.

    • Related Report
      1990 Annual Research Report
  • [Publications] 安藤 貴: "スギ高齢林のリッタ-ホ-ル量について" 岩手大学演習林報告.

    • Related Report
      1990 Annual Research Report
  • [Publications] 吉田 茂二郎,石井 弘: "スギ高齢林の樹冠構造について" 鹿児島大学演習林報告. 19. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 永森通雄、池本彰夫、西村武二、吉川賢: "スギ高齢林分の現存量と過去の生長経過について" 高知大学農学部演習林報告.

    • Related Report
      1989 Annual Research Report

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

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