New approarch of fine root analysis using VIS-NIR spectral images

• Project/Area Number: 24580235
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: NOGUCHI Kyotaro 独立行政法人森林総合研究所, 立地環境研究領域, 主任研究員 (70353802)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 多重分光画像解析 / 生細根 / 枯死細根 / マルチバンドイメージスキャナ

Outline of Final Research Achievements

This study examined availability of VIS-NIR spectral images to distinguish live fine roots from dead fine roots obtained from a 35-year-old Chamaecyparis obtusa stand. The live-dead classification was improved when training data was prepared using both of 1st and higher order roots. Furthermore, classification accuracy was improved by using VIS-NIR reflectance images including two NIR bands. In addition, fine root production and turnover rates in the same C. obtusa stand were estimated to be 45 g m-2 y-1 and 0.34 yr-1, respectively.

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 享太郎、小熊宏之
  • Journal Title: 植物科学の最前線 Volume: 3 Pages: 22-29
• [Presentation] Analysis of live and dead fine roots of Chamaecyparis obtusa using VIS-NIR spectral images (2014)
  • Author(s): Kyotaro Noguchi, Tatsuro Nakaji
  • Organizer: The 6th International Symposium on Physiological Processes in Roots of Woody Plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09 – 2014-09-11
• [Presentation] 可視光－近赤外光反射画像を利用した樹木細根の生死判別 (2014)
  • Author(s): 野口享太郎、中路達郎
  • Organizer: 第40回根研究集会
  • Place of Presentation: 北海道医療大学
  • Year and Date: 2014-05-17 – 2014-05-18
• [Presentation] Analysis of live and dead fine roots of Chamaecyparis obtusa using VIS-NIR images (2013)
  • Author(s): Kyotaro Noguchi and Tatsuro Nakaji
  • Organizer: Belowground Carbon Turnover in European Forests (COST Action FP0803)
  • Place of Presentation: フランス、ボルドー
• [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2012
  • Place of Presentation: 理化学研究所 発生・再生科学総合研究センター