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Carbon flux in soil and plant-root compartments in the matter recycling system of secondary forests

Research Project

Project/Area Number 06660172
Research Category

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

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionIwate University

Principal Investigator

HASHIMOTO Ryoji  Iwate Univ.Agric.Professor, 農学部, 教授 (80109157)

Co-Investigator(Kenkyū-buntansha) SHIRAHATA Manabu  Iwate Univ.Agric.Assistant Professor, 農学部, 助手 (00235756)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1995: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1994: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordscarbon flux / root respiration / growth analysis / biomass increase / litter fall / recycling system / 現存量増加 / 二次林生態系 / 物質循環 / 炭素フラックス / コンパートメントモデル / 土壌呼吸 / 植物根呼吸
Research Abstract

The carbon dioxide release from mineral soil layr was measured by using alkali solution in young Cryptomeria japonica stands. The CO_2 release changed seasonally in accordance with the fluctuation in soil temperature, being around 2.2 the Q_<10> values. The amount of CO_2 release largely differed with measurement places, where root biomass and root composition with its diameter in mineral soil layr at each place had a great influence. The linear multiple regression model, R=a_0+a_1w_1+a_2w_2+a_3w_3, was quite useful to divide the total CO_2 release (R) into those from mineral soil and root systems. Here w_1 to w_3 in the equation stand for root weights for different diameter classes. The respiratory amount by root system was estimated to occupy more than 60% of the total CO_2 release.
The respiration by root system was investigated in relation to growth and respiration of the above-ground organs in seedings of three coniferous species, Pinus densiflora, Lalix leptolepis, and Cryptomeria japonica. The linear relationship was recognized in each species between above-ground and under-ground respirations through various growth stages. Gradient of the regression line, implying ratio of above-ground respiration against under-ground one, was significantly higher in C.japonica and lower inP.densiflora. These differences were considered to result from specific properties with respect to internal development of root tissues. Although additional works are needed to clarify that simple relationships are observed in more developed stages in individual growth, the results obtained here are very suggestive in examining much better estimation methods of the under-ground respiration in forest stand level.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 白旗学・橋本良二・北川道隆: "森林土壌から放出される二酸化炭素フラックス -鉱質土層における根系呼吸量-" 岩手大学農学部演習林報告. 27,(印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 橋本良二: "森林発達過程における物質収奪曲線と還元曲線の平衡" 第107回日本林学会大会発表要旨集. (印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 橋本良二: "スギ林における地上部現存量曲線と総括死・脱落量曲線" 岩手大学農学部報告. 22. 107-117 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 橋本良二: "スギ林発達過程における葉群の分布構造と動態" 岩手大学農学部報告. 22. 119-130 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 橋本良二・青木享宏: "冷温帯コナラ二次林の林冠下で枯死する同種維持の炭素収支" 日本緑化工学会誌. 21,(印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shirahata, M., Hashimto, R., and Kitagawa, M.: "Carbon dioxide flux released from forest soil-Root respiration in mineral soil layr-" Bulletin of the Iwate University forests. 27 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Aoki, Y.and Hashimoto, R.: "Leaf phenology of woody plant species in a cool-temperate secondary forest of Quercus serrata" Bulletin of the Iwate University forests. 26. 29-41 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimoto, R.and Aoki, Y.: "Carbon balance of Quercus serrata seedlings disappearing in the shaded under-story in cool-temperate secondary forest" Journal of the Japanese society of revegetation technology. 21 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimoto, R.and A Oki, Y.Influences of canopy-tress felling on foliage formation and photo-synthetic properties of pregenerated saplings of Quercus serrata: Journal of the Japanese society of revegatation technology. 21. 101-113 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimoto, R.and Aoki, Y.: "Eco-physiological properties of saplings of two Quercus species growing in a shaded forest floor-Comparisons of parameter values of the photosynthetic light-response curve-" Environmental Control in Biology. 33. 175-183 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimoto, R.and Gyokusen, K.: "Growth pattern of tree organs in relation to the process of canopy development in a Cryptomeria japonica stand" Journal of the Japanese Forestry Society. 77. 153-162 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimto, R.: "Distribution structure and dynamics of canopy foliage in relation to stand development of Cryptomeria japonica" Journal of the Faculty of Agriculture Iwate University. 22. 119-130 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hashimoto, R.: "Annual courses of above-ground biomass and accumulated litterfall in a Cryptomeria japonica stand" Journal of the Faculty of Agriculture Iwate University. 22. 107-117 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 白旗学,橋本良二,北川道隆: "森林土壌から放出される二酸化炭素フラックス-鉱質土壌における根系呼吸量-" 岩手大学農学部演習林報告. 27(印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 橋本良二: "森林発達過程における物質収奪曲線と還元曲線の平衡" 第107回日本林学会大会発表要旨集. 印刷中 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 橋本良二: "スギ林における地上部現存量曲線と総枯死・脱落量曲線" 岩手大学農学部報告. 22. 107-117 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 橋本良二: "スギ林発達過程における葉群の分布構造と動態" 岩手大学農学部報告. 22. 119-130 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 橋本良二,青木亨宏: "冷温帯コナラ二次林の林冠下で枯死する同種維持の炭素収支" 日本緑化光学会誌. 21(印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 橋本良二・玉泉幸一郎: "スギ林における林冠の発達過程と個体の器官成長様式" 日本林学会誌. 72(印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 白旗学・北川道隆・橋本良二: "スギ根系部呼吸の非破壊的測定の試み-林床面CO_2放出量の水平分布-" 第106回日本林学会大会発表要旨集. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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