Establishment of probabilistic inversion method for estimating parameters and development of soil organic matter model in Japanese arable land

2008 Fiscal Year Final Research Report

• Project/Area Number: 19810030
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute for Agro-Environmental Sciences
• Principal Investigator: JOMURA Mayuko National Institute for Agro-Environmental Sciences, 大気環境研究領域, 農環研特別研究員 (60444569)
• Project Period (FY): 2007 – 2008
• Keywords: 土壌圏現象 / 環境変動 / Roth-Cモデル / 土壌有機炭素 / 農耕地 / マルコフ連鎖モンテカルロ法

Research Abstract

本研究では、土壌有機炭素動態の変動予測に不可欠な土壌有機炭素モデル開発のために必要となる、(1)マルコフ連鎖モンテカルロ法(MCMC法)を用いたモデルパラメータ決定手法の確立、(2)パラメータ推定に必要なデータを得るための、モデル画分に沿った土壌有機炭素の実験的な分離手法の検討、(3)MCMC法と土壌炭素量の経時変化データを用いてのモデルパラメータの推定を行った。

Research Products

• [Presentation] 日本農耕地の土壌有機物分解における温度依存性の逆推定 (2009)
  • Author(s): 上村真由子, 横沢正幸, 米村正一郎, 白戸康人, 飯泉直之丞
  • Organizer: 日本生態学会第56回大会
  • Place of Presentation: 岩手県立大学
  • Year and Date: 2009-03-19
• [Presentation] Large-scale validation of the Roth-C model for Japanese paddy soils (2008)
  • Author(s): M.Jomura, M.Yokozawa, S.Yonemura, H.Obara, Y.Shirato
  • Organizer: Eurosoil2008
  • Place of Presentation: University of Natural Resources and Applied Life Sciences
  • Year and Date: 2008-08-27
• [Presentation] 日本農耕地の土壌有機炭素分解における温度依存性の逆推定 (2008)
  • Author(s): 上村真由子, 横沢正幸, 米村正一郎, 白戸康人, 飯泉直之丞
  • Organizer: 日本地球惑星科学連合2008大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2008-05-29
• [Presentation] Estimating parameters in a soil organic matter model by Monte Carlo sampling: a case study of Japanese arable soil (2007)
  • Author(s): Jomura, M., Yokozawa, M., Yonemura, S., and Iizumi, T.
  • Organizer: International Workshop on Advanced Flux Network and Flux Evaluation
  • Place of Presentation: Aspire Park,Taoyuan, Taiwan
  • Year and Date: 2007-10-20
• [Presentation] Probabilistic inversion of temperature dependency on soil organic carbon turnover in Japanese arable land (2007)
  • Author(s): Jomura, M., Yokozawa, M., Yonemura, S., Iizumi, T.
  • Organizer: 3rd International Conference on Mechanisms of Organic Matter Stabilization and Destabilization in Soils and Sediments
  • Place of Presentation: Stamford Grand Hotel, Glenelg, Adelaide, Australia
  • Year and Date: 2007-09-26