メコンデルタ炭素貯蔵生態系における統合的温室効果ガス発生量ＭＲＶシステムの構築

• Project/Area Number: 16J02509
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: The University of Tokyo (2017-2018); Japan International Research Center for Agricultural Sciences (2016)
• Principal Investigator: 新井 宏徳 東京大学, 生産技術研究所, 特別研究員(PD)
• Project Period (FY): 2016-04-22 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 水田 / 湿地 / 温室効果ガス / メタン / 合成開口レーダー / モデリング / 環境分析 / 低炭素社会 / 資源循環システム / 環境調和型農業 / 環境利用改善 / 生態系サービス / 流域管理 / MRV / 資源環境バランス / 陸海域の統合農学 / 環境適応 / 環境価値評価

Outline of Annual Research Achievements

本研究は、複数衛星データを活用した水田からのメタン排出量評価手法開発のため、水田からのメタン排出量が世界で最も大きい地域の一つであるベトナムのメコンデルタにおいて、我が国の各種観測衛星ALOS-2、GCOM-Wなどの観測データ、現地データを活用したメタン排出評価手法の検討を行った。具体的には、ALOS-2やGCOM-W/AMSR2などの衛星データを活用して水田フェノロジー（水稲生育状況、湛水状況）を特定する手法を開発した。さらに、現地メタンフラックスデータと水田フェノロジーなど活用し、メタン排出モデルなどを開発した。ALOS-2やGCOM-W/AMSR2などのデータを活用して水田フェノロジー（水稲生育状況、湛水状況）を特定する手法を開発した。加えて、多種衛星センサデータを同化しつつ圃場湛水状況をシミュレーションする基盤となる高空間解像度のモデルを開発した。さらに、現地メタンフラックスデータと水田フェノロジーなど活用し、メタン排出モデル構築手法を検討した。さらに、京コンピュータ上にてグローバルスケールの大気モデルを利用し、GOSATデータを持ちいた解析システムの構築を行った。国際英分誌Remote sensingから成果の一部が出版された。フランスのCNES（フランス国立宇宙研究センター）/CESBiO（生物圏宇宙研究センター）やベトナムのVNSC（ベトナム国立宇宙センター）との打ち合わせや関連会議に参加して、合同研究実現に向けて手法の改良点や課題を抽出した。LCLUC-SARI2018、11th GEOSS-Asia Pacific symposium (TG3, TG5)、ALOS京都炭素計画第25回科学諮問会議にて研究成果を発表した。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] ベトナム科学技術院/ホーチミン宇宙技術運用センター(ベトナム)
• [Int'l Joint Research] ベトナム科学技術院(ベトナム)
• [Int'l Joint Research] 国立カントー大学/ベトナム科学技術院(ベトナム)
• [Journal Article] Estimation of Methane Emissions from Rice Paddies in the Mekong Delta Based on Land Surface Dynamics Characterization with Remote Sensing (2018)
  • Author(s): Arai, H., Takeuchi, W., Oyoshi, K., Nguyen, L., & Inubushi, K
  • Journal Title: Remote Sensing Volume: 10 Issue: 9 Pages: 1438-1438
  • DOI: 10.3390/rs10091438
  • Peer Reviewed / Open Access
• [Journal Article] Function of the methanogenic community in mangrove soils as influenced by the chemical properties of the hydrosphere (2016)
  • Author(s): Arai, H., Yoshioka, R., Hanazawa, S., Vo, Q.M., Vo, Q.T., Tran, K.T., Phu, Q.T., Jha, S.J., Dadhwal, V.K., Mano, M., Inubushi, K.
  • Journal Title: Soil Science and Plant Nutrition Volume: 62 Issue: 2 Pages: 150-163
  • DOI: 10.1080/00380768.2016.1165598
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Satellite data based MRV system of GHGs emission from tropical rice paddies (2019)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: ALOS Kyoto & Carbon Initiative 25th Science Team meeting, RESTEC HQ
  • Int'l Joint Research
• [Presentation] Estimation of methane emissions from rice paddy fields in the Mekong delta by land surface characterization with remote sensing (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, and Kazuyuki Inubushi
  • Organizer: Land cover/land use changes and impacts on environment in south/southeast asia; international regional science meeting
  • Int'l Joint Research
• [Presentation] Bottom up approach to evaluate regional methane emission from the Mekong delta. Japan (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, and Kazuyuki Inubushi
  • Organizer: Japan Geoscience Union Meeting
  • Int'l Joint Research
• [Presentation] Establishing an integrated MRV system of greenhouse gas emission from Asian rice paddies by integrating multi-satellite sensors and ground greenhouse gas observation data (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: 1st data-utilization community workshop, Information technology center, the university of Tokyo
• [Presentation] Monitoring GHG observation of rice field. (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: Joint JECAM/Asia-RiCE Meeting
  • Int'l Joint Research / Invited
• [Presentation] Satellite data based transparent MRV system of GHGs emission from Asian agricultural ecosystems (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: 11th GEOSS Asia Pacific Symposium TG3-The GEO carbon and GHG initiative
  • Int'l Joint Research / Invited
• [Presentation] Monitoring GHG emission from rice cropping and the dissemination status of mitigation activities (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: 11th GEOSS Asia Pacific Symposium TG5-Asia-RiCE
  • Int'l Joint Research / Invited
• [Presentation] Establishment of MRV system of greenhouse gas emission from Asian rice paddies by integrating multi-type satellite data and ground flux data (2018)
  • Author(s): Hironori Arai, Wataru Takeuchi, Kei Oyoshi, Lam Dao Nguyen, Towa Tachibana, Uozumi Ryuta, Terasaki Koji, Miyoshi Takemasa, Yashiro Hisashi, and Kazuyuki Inubushi
  • Organizer: 5th international workshop on non-hydrostatic models
  • Int'l Joint Research
• [Presentation] 地上フラックス・衛星データを融合した水稲栽培由来のメタン発生量の時空間分布手法の開発. (2018)
  • Author(s): 新井宏徳, 竹内渉, 大吉慶, ラムダオグイン, 橘永久, 犬伏和之.
  • Organizer: JananFlux10周年記念集会.
• [Presentation] Establishment of methane spatio-temporal distribution from rice cropping with ground flux & satellite datasets. (2018)
  • Author(s): 新井宏徳, 竹内渉, 大吉慶, ラムダオグイン, 橘永久, 犬伏和之.
  • Organizer: 東京大学生産技術研究所フォーラム 2018
• [Presentation] A multidisciplinary approach of the global warming potential evaluation on the Mekong Delta. (2017)
  • Author(s): Arai, H., W.Takeuchi, K.Oyoshi, L.D. Nguyen, T.Tachibana, and K.Inubushi.
  • Organizer: LCLUC NASA-SARI International Meeting. Chiang Mai, Thailand.
  • Int'l Joint Research
• [Presentation] Methane emission and methanogenic community in mangrove soils. (2017)
  • Author(s): Inubushi, K., and H. Arai.
  • Organizer: The International Society for Environmental Biogeochemistry (ISEB). 23rd International Symposium.
  • Int'l Joint Research
• [Presentation] Regional evaluation of methane emission from rice production in the Mekong Delta. (2017)
  • Author(s): Arai, H., W.Takeuchi, K.Oyoshi, L.D. Nguyen, T.Tachibana, and K.Inubushi.
  • Organizer: Join conference of AsiaFlux2017 and the 15th Anniversary of ChinaFlux. Beijing, China.
  • Int'l Joint Research
• [Presentation] Wild fire mapping in Asia pacific region by advanced Himawari-I imager. (2017)
  • Author(s): Arai, H.
  • Organizer: The third world congress on GIS & Remote sensing. Charlotte, USA
  • Int'l Joint Research
• [Presentation] An interdisciplinary approach to evaluating regional methane emission from rice production in the Mekong Delta. (2017)
  • Author(s): Arai, H., W.Takeuchi, K.Oyoshi, L.D. Nguyen, T.Tachibana, and K.Inubushi.
  • Organizer: The 38th Asian Conference on Remote Sensing special session: GEOGLAM. New Delhi, India.
  • Int'l Joint Research
• [Presentation] マングローブ林土壌中のメタン生成菌群集が示す特徴的な機能 (2016)
  • Author(s): 新井宏徳, 吉岡遼, 花澤俊祐, ボークオックトン, チャンキムティン, チャンドラシェカー, スラジレディーレッダ, 間野正義, 白鳥豊, 犬伏和之
  • Organizer: 微生物生態学会第31回大会
  • Place of Presentation: 横須賀
  • Year and Date: 2016-10-22
• [Presentation] Cellulase activity and methanogenic community in mangrove soils (2016)
  • Author(s): Arai, H., V.Q. Minh, T.K. Tinh, T.Q. Phu, C.S. Jha, S.R. Redda, R. Yoshioka, S. Hanazawa and K. Inubushi
  • Organizer: Enzymes in the Environment: Activity, Ecology and Applications
  • Place of Presentation: Bangor, Wales, United Kingdom
  • Year and Date: 2016-07-24
  • Int'l Joint Research