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Degradation and disappearance process of charcoals, examined by their photophysical and chemical properties

Research Project

Project/Area Number 16K07646
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant nutrition/Soil science
Research InstitutionOsaka City University

Principal Investigator

Inoue Jun  大阪市立大学, 大学院理学研究科, 准教授 (90514456)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords微粒炭 / 炭化物 / タフォノミー / 分解過程 / 土壌 / 堆積物 / 変質 / 消失 / ラマン分光法
Outline of Final Research Achievements

This study aimed to clarify transport, burial, transformation, and disappearance processes of charcoal fragments in soils and sediments. The results of our study indicate as follows. Chemical and physical properties of each natural charcoal are different, which likely depends on the plant material and the heating condition (e.g., temperature and heating duration). These properties are likely different between soil-charcoals and sediment-charcoals.

Academic Significance and Societal Importance of the Research Achievements

土壌や堆積物中の炭化物の変質・消失過程を明らかにすることは,土壌改良への炭化物の利用,また地球の炭素循環における土壌や堆積物の炭素貯留を考える上で重要である。このため,炭化物の土壌や堆積物中での安定性,変質や消失については様々な研究手法を用いて広く行われてきた。本研究では過去約1000年間に生成された土壌中の炭化物1粒子ごとの物性変化を明らかにした。その結果,長期的な化学的特性の変化に加えて,炭化物の残存にはそれぞれの粒子の物理的特性(強度・比重)などが強く影響している可能性を示唆した。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2019 2018 2017 2016 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (3 results)

  • [Journal Article] Long-term response of respective grass types to variations in fire frequency in central Japan, inferred from phytolith and macrocharcoal records in cumulative soils deposited during the Holocene2019

    • Author(s)
      Naoki Hayashi, Tatsuichiro Kawano, Jun Inoue
    • Journal Title

      Quaternary International

      Volume: 527 Pages: 94-102

    • DOI

      10.1016/j.quaint.2018.04.048

    • NAID

      120007143856

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2020457

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 埋没土壌の炭化物粒子から復元される火の歴史と炭化物の残存過程2018

    • Author(s)
      井上淳
    • Journal Title

      ペドロジスト

      Volume: 62 Pages: 44-52

    • NAID

      130007777879

    • Related Report
      2018 Research-status Report
  • [Journal Article] Disappearance and alteration process of charcoal fragments in cumulative soils studied using Raman spectroscopy2017

    • Author(s)
      Inoue J., Yoshie A., Tanaka T., Onji T. and Inoue Y.
    • Journal Title

      Geoderma

      Volume: 285 Pages: 164-172

    • DOI

      10.1016/j.geoderma.2016.09.032

    • NAID

      120006349706

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019866

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 兵庫県神鍋地域の堆積土壌中の植物珪酸体と微粒炭が示す過去1万年間の異なる火入れ頻度下での植生変遷2018

    • Author(s)
      林 尚輝・河野樹一郎・井上 淳
    • Organizer
      日本植生史学会33回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] The different vegetation during Holocene induced by different fire frequencies in a local area, central Japan, inferred from phytolith and macrocharcoal records in cumulative soils2018

    • Author(s)
      Naoki HAYASHI, Tatsuichiro KAWANO, Jun INOUE
    • Organizer
      The 11th International Meeting on Phytolith Research
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 埋没土壌の炭化物生成時の周辺環境と炭化物の残存過程2018

    • Author(s)
      井上 淳
    • Organizer
      日本ペドロジー学会2018年大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ラマンスペクトルから見た累積性土壌中の微粒炭の変質・消失過程2016

    • Author(s)
      井上 淳・吉江紋加・田中 剛・陰地威史・井上 陽太郎
    • Organizer
      日本第四紀学会
    • Place of Presentation
      千葉大学(千葉県千葉市)
    • Year and Date
      2016-09-17
    • Related Report
      2016 Research-status Report
  • [Remarks] 井上淳ホームページ

    • URL

      http://sedimentarychar.sakura.ne.jp

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Remarks] 井上淳 個人ホームページ

    • URL

      http://www.geocities.jp/charcoalparticles/charcoal/index.htm

    • Related Report
      2017 Research-status Report
  • [Remarks] 井上 淳(個人ページ

    • URL

      http://www.geocities.jp/charcoalparticles/charcoal/index.htm

    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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