Detection of warming response of tree rhizosphere by using NIR rhizotron

2013 Fiscal Year Final Research Report

• Project/Area Number: 23780154
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Hokkaido University
• Principal Investigator: NAKAJI TATSURO 北海道大学, 北方生物圏フィールド科学センター, 准教授 (40391130)
• Project Period (FY): 2011 – 2013
• Keywords: 森林生態 / モニタリング / 炭素動態 / 分光技術 / 非破壊測定

Research Abstract

Tree roots and litter are main component of below-ground C stock in the forest. Although the non-destructive monitoring of below-ground C balance and its response to the warming are important for estimation of current/future environment of our forests, the usable technique has not been developed yet. In this study, I developed the new rhizotron system for non-destructive monitoring of C and C-related root traits by application of NIR spectral imaging technique. I concluded that the warming responses of total C and the related traits such as live status and specific root length were able to be estimated by combination use of VIS and NIR image.

Research Products

• [Journal Article] 根圏動態研究における非破壊分光画像計測の可能性 (2012)
  • Author(s): 中路達郎,野口亨太郎,小熊宏之
  • Journal Title: 植物科学の最前線BSJ-Review Volume: Vol. 3 Pages: 22-29
  • URL: http://bsj.or.jp/saizensen/
  • Peer Reviewed
• [Presentation] 樹木根圏の可視―近赤外反射スペクトルと炭素動態の関係 (2014)
  • Author(s): 中路達郎,小熊宏之,高木理恵,牧田直樹,日浦勉
  • Organizer: 第125回日本森林学会大会
  • Place of Presentation: 大宮ソニックシティ(さいたま市).
  • Year and Date: 2014-03-28
• [Presentation] 落葉広葉樹林への大規模窒素施肥が細根系の呼吸速度及びその形態特性に与える影響の解明 (2014)
  • Author(s): 高木理恵,牧田直樹,中路達郎,片山歩美,小杉緑子,日浦勉
  • Organizer: 第125回日本森林学会大会
  • Place of Presentation: 大宮ソニックシティ(さいたま市)
  • Year and Date: 2014-03-28
• [Presentation] Effects of experimental soil warming on soil, autotrophic and heterotrophic respirations in cool-temperate deciduous broad-leaved forests (2013)
  • Author(s): Noh, N., Kuribayashi, M., Saitoh, T.M., Nakamura, M., Nakaji, T., Hiura, T., Muraoka, H
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA.
  • Year and Date: 2013-12-18
• [Presentation] Analysis of live and dead fine roots of Chamaecyparis obtusa using VIS-NIR images (2013)
  • Author(s): Noguchi, K., and Nakaji, T
  • Organizer: Final conference COST Action FP0803 Belowground carbon turnover in European forests
  • Place of Presentation: Luchey Halde, Bordeaux, France.
  • Year and Date: 2013-05-14
• [Presentation] Estimation of spatial variation in the chemical constitution of rhizospheric components by using (2012)
  • Author(s): Nakaji, T., Noguchi, K., Igasaki, T. and Oguma, H.
  • Organizer: shortwave-infrared hyperspectral images. EAFES
  • Place of Presentation: Seta, Japan.
  • Year and Date: 20120503-20
• [Presentation] 樹木根圏の動態研究における分光画像計測の可能性 (2012)
  • Author(s): 中路達郎,野口享太郎,小熊宏之
  • Organizer: バイオイメージ・インフォマティクスワークショップ
  • Place of Presentation: 理化学研究所(神戸市).
  • Year and Date: 2012-11-01
• [Presentation] 根圏動態研究における分光画像計測の可能性 (2012)
  • Author(s): 中路達郎,野口享太郎,小熊宏之
  • Organizer: 日本植物学会第76回大会
  • Place of Presentation: 兵庫県立大学.
  • Year and Date: 2012-09-16