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Development of a forest carbon dynamics model based on a drymatter production model in a temperate region and its validation

Research Project

Project/Area Number 61480004
Research Category

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

Allocation TypeSingle-year Grants
Research Field 生態学
Research InstitutionUniversity of Tsukuba, Institute of Biological Science

Principal Investigator

OIKAWA Takehisa  University of Tsukuba ,Institute of Biological Science, 生物科学系, 助教授 (70011682)

Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1987: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1986: ¥2,800,000 (Direct Cost: ¥2,800,000)
Keywordsiucidophyll forest / Minamata / carbon flux / phytomass / dry-matter production model / 水俣 / 光環境 / 常緑広葉樹林
Research Abstract

In this research project, I have tried to develop a new carbon dynamics model for a temperate forest. The model developed here is a modification of tropical rainforest mode based on a dry-matter production model developed by Oikawa(1985).
In the previous model for a tropical rainforest, seasonal variations of environmental parameters such as light and temperature climates were ignored for simplicity, but in the present model for a temperate forest, such climatic variations and thus physiological variations of tree properties must be taken into consideration.
Surplus productivity was computed from Kuroiwa's formula (1966) for a Iucidophyll forest in Minamata by giving monthly data of insolation and photosynthetic and respiratory activities of single leaves measured by Nishioka et al.(1978). Monthly variations of litterfall rates of leaves and stems were also built in the present model by reference to the data obtained by Nishioka and Kirita (1978).
The successional pattern during a period of 100 years was simulated, demonstrating stable and perpetual occurrence of a lucidophyll forest in Minamata. The model outputs of carbon fluxes and phytomasses at a year of 60, agreed quite well with the field data reported by Kira(1978).

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Oikawa, T: Bot. Mag. Tokyo. 99. 213-223 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa, T: Bot. Mag. Tokyo. 99. 419-430 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa, T: J. Agric. Met.42. 207-216 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa, T: Ecol. Res.2. 289-300 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 及川武久: 「気象研究ノート」日本気象学会. 160. 775-784 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa,T: "Simulation of forest carbon dynamics based on a dry-matter production model II.Effects of dry season upon a tropical rainforest ecosystem." Bot. Mag. Tokyo. 99. 213-223 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa,T: "Simulation of forest carbon dynamics based on a dry-matter production model III. Effects of increasing CO_2 upon a tropical rainforest ecosystem." Bot. Mag. Tokyo. 99. 419-430 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa,T: "A simulation study of surplus productivity as influenced by the photosynthesis and respiration rates of a single leaf." J. Agric. Met.42;. 207-216 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Oikawa,T: "Studies on the dynamic properties of terrestrial ecosystems base on a simulation model. I. Critical light conditions for stability of a tropical rainforest ecosystem." Ecol. Res. 2;. 289-300 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] T.Oikawa: Bot.Mag.Tokyo. 99. 213-223 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Oikawa: Bot.Mag.Tokyo. 99. 419-430 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] T.Oikawa: J.Agr.Met.42. 207-216 (1986)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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