Methods to study the role of ectomycorrhizal fungi in forest carbon cycling 3: Quantification of the amount of carbon consumed by ectomycorrhizal fungi in a Japanese red pine forest

  • Satomura Takami
    Graduate School of Biosphere Science, Hiroshima University Field Science Center fot the Northern Bioshere, Hokkaido University
  • Hashimoto Yasushi
    Agro-Environmental Science, Obihiro University of Agriculture and Veterinary Medicine
  • Kinoshita Akihiko
    Graduate School of Biosphere Science, Hiroshima University
  • Horikoshi Takao
    Graduate School of Integrated Arts and Sciences, Hiroshima University

Bibliographic Information

Other Title
  • 森林の炭素循環における外生菌根菌の役割を研究する手法3
  • Quantification of the amount of carbon consumed by ectomycorrhizal fungi in a Japanese red pine forest

Search this article

Abstract

We estimated the role of mycorrhizal fungi quantitatively in a Japanese red pine (Pinus densiflora) forest. We directly estimated several parameters to calculate the amount of carbon consumed by mycorrhizal fungi, such as the biomass of fungi in ectomycorrhizal fine roots and fine root biomass, and drew other parameters from the literature. Our study site, a Japanese red pine forest, was characterized by a very small ectomycorrhizal fine root biomass (only 91.0gm-2) and small fungal content in ectomycorrhizal fine roots (2.2%) compared with the literature data. The ectomycorrhizal fine root biomass has a greater influence than the fungal content of ectomycorrhizal fine roots on the difference in fungal biomass in ectomycorrhizal fine roots among forests. The total biomass of ectomycorrhizal fungi in ectomycorrhizal fine roots and in soil was estimated to be only 10.0gm-2. However, the total amount of carbon consumed by the production-death decomposition cycle of ectomycorrhizal fungi was estimated to be 117.0g C m-2 year-1, which corresponds to about 24% of carbon release from soil as soil respiration. Our estimation reconfirmed the importance of ectomycorrhizal fungi in forest carbon cycling. The carbon consumed by ectomycorrhizal fungi is not negligible, even in a stand having a very small biomass of ectomycorrhizal fungi.

Journal

  • Root Research

    Root Research 15 (4), 155-159, 2006

    Japanese Society for Root Research

References(23)*help

See more

Details

  • CRID
    1390001204443039616
  • NII Article ID
    10018655035
  • NII Book ID
    AA11272904
  • DOI
    10.3117/rootres.15.155
  • ISSN
    18807186
    09192182
  • Text Lang
    en
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top