Updated on 2024/04/25

写真a

 
AODA Tadao
 
Organization
Academic Assembly Institute of Science and Technology NOUGAKU KEIRETSU Assistant Professor
Graduate School of Science and Technology Environmental Science and Technology Assistant Professor
Faculty of Agriculture Department of Agriculture Assistant Professor
Title
Assistant Professor
Contact information
メールアドレス
External link

Degree

  • 博士(農学) ( 1995.3   新潟大学 )

Research Interests

  • Soil Physics

  • Material Circulation

  • Basin Ecosystems

  • Harmonization of Food Production and Biodiversity Preservation

Research Areas

  • Environmental Science/Agriculture Science / Rural environmental engineering and planning  / Unsaturated Soil Water Movement, Plant Growth

  • Environmental Science/Agriculture Science / Environmental impact assessment  / Biodiversity; Material Circulation; Soil Environment

Research History

  • Niigata University   Faculty of Agriculture Department of Agriculture   Assistant Professor

    2017.4

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology   Assistant Professor

    2010.4

  • Niigata University   Graduate School of Science and Technology Environmental Science and Technology   Assistant Professor

    2010.4

  • Niigata University   Faculty of Agriculture Department of Production and Environment Science   Assistant Professor

    2007.4 - 2017.3

  • Niigata University   Faculty of Agriculture Department of Production and Environment Science   Research Assistant

    2004.4 - 2007.3

Education

  • Wageningen Agricultural University, the Netherlands   Department of Water Resources

    1991.4 - 1992.8

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Professional Memberships

  • Japanese Society of Irrigation, Drainage and Rural Engineering

    1996.4

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  • Japanese Society of Soil Physics

    1996.4

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  • Japanese Society of Hydrology and Water Resources

    1996.4

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Committee Memberships

  • Environmentally Sound Rural Development New Technology Advisers Board   Member of Advisers Board  

    2011.6   

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    Committee type:Municipal

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  • Japanese Society of Regional and Agricultural Development   Member  

    2012.3   

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    Committee type:Academic society

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  • Council for the Promotion of Nutrition Education and Agricultural Development, Sanjyo City, Niigata, Japan   Chairperson  

    2011.5   

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    Committee type:Municipal

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  • Japanese Society of Environment   secretary  

    2007.6 - 2011.6   

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    Committee type:Academic society

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  • Japanese Society of Irrigation, Drainage and Rural Engineering   Member  

    1996.4   

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    Committee type:Academic society

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  • Japanese Society of Hydrology and Water Resources   Member  

    1996.4   

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    Committee type:Academic society

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Books

  • Physical definition of residual water content in unsaturated soils

    Unsaturated Soils for Asia  2000 

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  • Physical definition of residual water content in unsaturated soils

    Unsaturated Soils for Asia  2000 

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  • 不飽和土壌における残留水分の物理的定義について

    アジアの不飽和土壌  2000 

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  • Water in Soils

    IKARASI Taro, Editorial Board of the Soil( Role: Joint author)

    Love Letters form Soil  1997.11 

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MISC

  • Evaluation of Soil Physical Properties in Paddy Fields on Reclaimed Land in Hachirogata

    AODA Tadao

    Reports of Joint Research   1 - 32   2021.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Improvement of Drainage by using vertical holes Reviewed

    AODA Tadao

    Modern Agriculture   2021 ( 3 )   58 - 63   2021.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

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  • Development of the Subsurface Irrigation System applied on Rice Cultivation under the High Temperature Condition Reviewed

    AODA Tadao

    Journal of Agricultural Development Studies   31 ( 2 )   69 - 76   2020.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Studies on the Vegetation Growth at the Slopes

    AODA Tadao

    Report on the Joint Research   1 - 36   2020.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Disaster and Restoration of the Land Consolidation at Tanne-Hirota Landslide Area Reviewed

    INABA Kazunari, OKITA Satoru, KANZO Naoki, MINEMURA Masaomi, DENPOYA Hideaki, AODA Tadao, SUZUKI Tetsuya

    Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   85 ( 12 )   19 - 22   2017.12

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    Authorship:Corresponding author  

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  • Subsurface Irrigation to Vitalize Rice Growth

    AODA Tadao

    Proceedings of Soil Moisture Workshop 2016   26 - 30   2017.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

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  • Vitalization of Clay Drain Pipes by using Epoch-making Management Reviewed

    AODA Tadao

    Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   84 ( 12 )   49 - 52   2016.12

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Rice Cultivation without any Fertilizer Reviewed

    SUGIYAMA Shu-ichi, AODA Tadao, KASUBUCHI Tatsuaki

    Natural Cultivation   8   34 - 41   2016.9

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

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  • Development of Multi-tasked Rice Cultivation System Enable to Direct Seeding with the Subsurface Irrigation

    AODA Tadao

    Proceedings of Soil Moisture Workshop 2015   2016   41 - 44   2016.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

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  • Perspective of the Kenya's Paddy Fields from a Land Reclamation Site in Japan Reviewed

    AODA Tadao

    水土の知   83 ( 7 )   19 - 22   2015.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Analysis of Slope Stability of JIgokuyama Landslide used Observed Groundwater Level Reviewed

    INABA Kazunari, KOYAMA Misaki, HONGO Toru, AODA Tadao

    Bulletin of Faculty of Agriculture, Niigata University   67 ( 2 )   107 - 110   2015.6

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    Authorship:Last author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

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  • Encouragement to be the Young Soil Scientists Reviewed

    AODA Tadao

    Water, Land Environmental Engineering   83 ( 5 )   25 - 28   2015.5

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Environmental Assessments on Eco-friendly Rice Production Applied Biomass - Investigation of Red Dragonflies as an Citizen Science - Invited Reviewed

    AODA Tadao

    Transactions of Environmental Studies of Japanese Society of Irrigation, Drainage and Reclamation Engineering   10   19 - 24   2015.4

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Diagnosis of Water Serviceability in Irrigation and Drainage Systems using Field Survey Reviewed

    SUZUKI Tetsuya, TARUYA Hiroyuki, AODA Tadao, NAKADA Toru, FUJIYAMA So, NAKA Tatsuo

    Water, Land Environmental Engineering   83 ( 4 )   11 - 14   2015.4

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Investigation of rice yield and quality in paddy fields using a water management system, and evaluation of effective use of agricultural water

    AODA Tadao

    Report of the Joint Research   1 - 10   2015.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Report of International Meeting of Paddy and Water Environment Engineering 2014 Reviewed

    AODA Tadao

    Water, Land Environmental Engineering   83 ( 1 )   68 - 69   2015.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

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  • Development of a Soil Water Management System Using Ceramic Culverts for Environmentally Friendly Production of High Quality Rice

    AODA Tadao

    Report of Joint Research   1 - 95   2014.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Development on the Construction, Utilization and Regeneration Technologies for Agricultural Infrastructure Based on Society-Academia Collaboration in Niigata Reviewed

    SUZUKI Tetsuya, YOSHIKAWA Natsuki, AODA Tadao

    Water, Land Environmental Engineering   82 ( 6 )   19 - 22   2014.1

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    Authorship:Last author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Spreadsheet Soil Moisture Dynamics Reviewed

    Tadao Aoda, Kosuke Noborio, Eiko Inao

    Procedia Environmental Sciences   19   465 - 473   2013.6

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    Authorship:Lead author   Language:English   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.proenv.2013.06.053

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  • Assessment of Paddy Environment using Emergence Husks of Red-dragonflies with Civic Participation

    AODA Tadao, KATANO Kai, TOYAMA Kazunari, JINGUJI Hiroshi

    Bulletin of Faculty of Agriculture, Niigata University   65 ( 2 )   131 - 135   2013.6

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

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  • Development of an Effective Soil Water Management System for Low-Humidity Paddy Fields Using a Ceramic Pipe Culvert

    AODA Tadao

    Report of the Joint Research   1 - 65   2013.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Visualization of Study Achievement based on the Curriculum Map Reviewed

    ARITA Hiroyuki, AODA Tadao, OHASHI Shin-taro, GONDA Yutaka, MIGUCHI Hideo, MURAKAMI Takuhiko, YAMASHITA Saori, IKUTA Koji, GOTO Yasushi, SATO Kiichi

    Bulletin of Higher Education, Niigata University   1 ( 1 )   9 - 16   2013.1

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

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    Other Link: http://hdl.handle.net/10191/24045

  • Modeling of Soil Water Dynamics Using a Spreadsheet Reviewed

    AODA Tadao, NOBORIO Kosuke

    Water, Land Environmental Engineering   80 ( 9 )   15 - 18   2012.9

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Functional Evaluation Report of Soil Water Management System Using Ceramic Pipe Culvert in Yamadera Area, Agano City, Japan

    AODA Tadao

    Report on the Joint Research   1 - 48   2012.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • Development of Soil Moisture Simulation Models using Spreadsheet

    AODA Tadao, OZAWA Naoki, YASUDA Hiroshi, KAKAR Qudratullah

    Proceedings of Soil Moisture Workshop 2011   7-1 - 7-4   2012.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

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  • Water Retention, Physicochemical Properties and Cadmium Transport in Paddy Soils

    AODA Tadao, MIZUSHINA Kei

    Proceedings of Soil Moisture Workshop 2010   93 - 96   2011.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

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  • Soil in the Environment -Crucible of Terrestrial Life- Reviewed

    AODA Tadao

    Journal of Soil Physics   115   61 - 61   2010.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Book review, literature introduction, etc.  

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  • Organic Rice Paddies had Low Cadmium Levels. Reviewed

    AODA Tadao

    Modern Agriculture   2010 ( 1 )   145 - 148   2010.1

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

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  • Biota and soil physicality in organic paddy fields, analysis of paddy field characteristics that enhance biodiversity, and strategic layout considering spatial scale

    AODA Tadao

    Report on the Research Results of Scientific Research Grants and Basic Research (B) [General, 18380144]   63 - 72   2009.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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  • The Reduction Technique of Cadmium Uptake by Rice using Flood-water Management-Assessment of mid-drainage and organic fertilizer- Reviewed

    AODA Tadao, KOBAYASHI Yuka, INABA Kazunari

    Transactions of Japanese Society of Irrigation, Drainage and Reclamation Engineering   243   9 - 13   2006.6

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

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  • Winter-flooded Rice Field, No-tillage Farming Reviewed

    MINETA Takuya, AODA Tadao, IWABUCHI Shigeki

    Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   73巻 ( 9 )   34 - 34   2005.9

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

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  • Soil Physical Studies onthe Deep-water Management for Cd Extraction Control of Rice Cultivars Reviewed

    AODA Tadao, SEKINE Rena

    Transactions of Japanese Society of Irrigation, Drainage and Reclamation Engineering   233   131 - 132   2004.10

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

    DOI: 10.11408/jsidre1965.2004.579

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  • Factors Affecting Plant Succession in Abandoned Paddy Fields in Mountainous Regions: Case Study in Ena City, Gifu Prefecture, Central Japan Reviewed

    Hyun-Kyung Kang, OHKURO Toshiya, NIKKUNI Seiko, AODA Tadao, ARITA Hiroyuki

    Journal of Rural Planning   23 ( 1 )   63 - 70   2004.6

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:THE ASSOCIATION OF RURAL PLANNING  

    DOI: 10.2750/arp.23.63

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  • Studies on Water Retention and its Movement in Film Stage of Coarse Porous Media Reviewed

    AODA Tadao

    Transactions of Japanese Society of Irrigation, Drainage and Reclamation Engineering   229 ( 1 )   55 - 61   2004.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:The Japanese Society of Irrigation, Drainage and Rural Engineering  

    During drying process, soil water in liquid phase remains in the form of independent pendular ring at the contact point of soil particles. At this water content (film stage), water is in vapor, liquid and semi-solid phase. Semi-solid phased water adsorbs on the soil surface as film, and not able to move by pressure change. As far as continuous body, liquid phase water transmits pressure, and moves conform to Darcy's law. The other side, it is still not clear that the pressure transition and liquid water movement of pendular ring. Because most studies, which focused on unsaturated soil water movement, have been discussed energy state of water without proper physical analysis of the water phase. In this study, we measured the time series of water pressure and the diameter of pendular ring under the condition of various water levels in glass beads (diameter=24mm) media. Consequently, pendular ring in the film stage, 1) could not transmit pressure each other, 2) could not move by the change of water level, 3) decreased by the vapor diffusion, 4) could not represent the pressure value at the inspection plane, 5) does move with phase transition.

    DOI: 10.11408/jsidre1965.2004.55

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00379164280?from=CiNii

  • Studies on the Change of Water Pressure at Film Stage in Porous Media Reviewed

    AODA Tadao

    Transactions of Japanese Society of Irrigation, Drainage and Reclamation Engineering   229 ( 1 )   115 - 116   2004.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:The Japanese Society of Irrigation, Drainage and Rural Engineering  

    DOI: 10.11408/jsidre1965.2004.115

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  • Modern Japanese Agriculture

    AODA Tadao

    Book Review Journal   25   2 - 14   2003.10

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    Authorship:Lead author   Language:Japanese   Publishing type:Book review, literature introduction, etc.  

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  • Phase transition of water in film stage of unsaturated soils

    AODA Tadao, HOMMA Hiroshi

    Unsaturated Soils   81 - 84   2003.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper, summary (international conference)  

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  • Non-continuous water movement at film stage in porous media

    AODA Tadao

    Proceedings of Japanese Society of Soil Physics   pp.66-67   66 - 67   2002

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    Authorship:Lead author  

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  • Physical Definition of Residual Water Content in Unsaturated Soils

    AODA Tadao

    Unsaturated Soils in Asia   91 - 93   2000.5

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    Authorship:Lead author   Language:English   Publishing type:Research paper, summary (international conference)  

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  • Pressure continuity of capillary water in unsaturated porous media

    AODA Tadao

    News Letter European Geophysical Society   74   131   2000.4

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    Authorship:Lead author   Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)  

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  • A Memorable Time in the Netherlands

    AODA Tadao

    Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   68 ( 4 )   331 - 332   2000

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    Authorship:Lead author   Language:Japanese  

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  • Participation in the 28th Grain Simulation Conference Reviewed

    AODA Tadao

    Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   66 ( 9 )   66 - 67   1998.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

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  • Water in Soils Reviewed

    AODA Tadao

    Love Letters from Soils -Dispatch from Niigata-   87 - 94   1997.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)  

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  • Simulation model for soil water movement in soil-plant-atmosphere continuum considering hysteresis Reviewed

    AODA Tadao, YOSHIDA Shoji

    Journal of Japan Society of Hydrology and water Resources   8 ( 3 )   322 - 334   1995.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES  

    We investigated the transient soil water movement of a potato field in Scotland during the whole 1987 growing season. The numerical simulation of water movement, considering climatic change, water uptake by roots and evapotranspiration, were based on the soil-plant-atmosphere continuum (SPAC) model. We compared the results of two simulation cases and the ob-served soil water distribution to evaluate the hysteretic effect in θ(h) relations for the soil water movement, where h is the pressure head and θ is the water content. Case I is the drying simulation using the main drying functions of the θ(h), and case II is the hysteretic simulation based on the simplified hysteresis model of θ(h). We used the mixed form of continuous eguation as the governing equation of the soil water flow to avoid the water balance error in the numerical solution. Consequently, the results of the hysteretic simulation were found to have high accuracy in representing the observed soil water distribution. Hysteresis does not affect the prediction of actual transpiration rates from the plants, since the soil water in the root zone was used by the plants as the effective water for the plant growth. The water balance error for the two cases of simulation, that based on the mixed form of continuous equation, was less than 2% during the 142 days of growing season.

    DOI: 10.3178/jjshwr.8.322

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  • A simulation model for the soil water movement in the fields

    AODA Taoda

    Niigata University, Doctoral dissertation   1 - 84   1995

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

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  • The methodology of the simulatin of water storage and crop production

    AODA Tadao, Van Dam, J, Feddes,R.A, Yoshida, S

    Proceedings of the International Corference on Environmentally Sound Water Resource Utilization   3   51 - 58   1993.6

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    Authorship:Lead author   Language:English   Publishing type:Research paper, summary (international conference)  

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  • Fundamental studies on rain infiltration into sandy soil with consideration given hysteresis Reviewed

    AODA Tadao, YOSHIDA Shoji, NAKANO Toshiro, YAMADA Akio

    Transaction of The Japanese Society of Irrigation, Drainage and Reclamation Engineering   157   35 - 44   1992.2

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Works

  • カドミウム吸収抑制稲作のための土壌改善について

    2003

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  • Soil improvement to reduce cadmium uptake by rice

    2003

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  • 不飽和土壌水の水理学的連続性についての研究

    1997

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  • Studies on hydraulic continuity of unsaturated soil water

    1997

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Awards

  • Education Appreciation

    2015.9   Japanese Society of Irrigation, Drainage and Rural Engineering  

    SUZUKI Tetsuya, TARUYA Hiroyuki, AODA Tadao, NAKATA Toru, FUJIYAMA So, NAKA Tatsuo

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Research Projects

  • aaa

    Grant number:23405045

    2011.4 - 2015.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    YASUDA hironori, KASUBUCHI Tatsuaki, SAWADA Hiroichi, NAMAI Tsuneo, ANDO Ho, FUJII Hiroshi, IIDA Toshiaki, HASE Shu, SATO Satoru, SASAKI Yuka, CHENG Weiguo

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    Grant amount:\19110000 ( Direct Cost: \14700000 、 Indirect Cost:\4410000 )

    In order to understand the pattern and mechanism of high yield due to System of Rice Intensification (SRI) factorial experiments with number of seedlings transplanted, density of seedlings, water management were carried out at four countries like Japan, Sri Lanka, Vietnam, and Indonesia. Results showed that SRI methods did not always have high yield through the countries examined. This study suggested that environmental friendly rice production without any chemicals would be possible by using the aquatic organisms like snails.

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  • Development of education system for animal rearing, plant cultivation and information science combined with environmental engineering in agriculture and technology education

    Grant number:23580345

    2011.4 - 2015.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (C)

    Awarding organization:Japan Society for the Promotion of Science

    HASEGAWA Hideo, AODA Tadao

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    Grant amount:\5460000 ( Direct Cost: \4200000 、 Indirect Cost:\1260000 )

    In this study, we developed an education system for animal rearing, plant cultivation, information science, and energy and environmental combined with environmental engineering in agriculture and technology education. The system was integrated open source e-Learning system “Moodle”. Moodle is a learning platform designed to provide educators, administrators and learners with a single robust, secure and integrated system to create personalized learning environments. This system is a unique approach in the field of environmental engineering in agriculture and technology education.

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  • Study for Strategical Arrangement Based on the Analysis of the Characteristics and Spatial Scale of Paddy-fields improving Bio-diversity

    Grant number:18380144

    2006 - 2008

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    ISHIDA Kenji, MINETA Takuya, AODA Tadao, TAMURA Takahiro, HIDAKA Kazumasa, TANIMOTO Takeshi, KOIZUMI Noriyuki, WAKASUGI Kousuke, KURITA Hideharu, ASHIDA Toshifumi

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    Grant amount:\10320000 ( Direct Cost: \9000000 、 Indirect Cost:\1320000 )

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  • 水田およびその周辺の生物多様性改善に向けた土壌つくりについての研究

    2003 - 2008

    System name:官民連帯共同研究

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    Grant type:Competitive

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  • Development of the low cost management technique for farmland resources conservation

    Grant number:14360141

    2002 - 2005

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    ARITA Hiroyuki, ENDO Kazuko, AOUDA Tadao, OHKURO Toshiya

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    Grant amount:\11200000 ( Direct Cost: \11200000 )

    (1)Vegetation changes in abandoned paddy fields : We surveyed vegetation changes in abandoned paddy fields and clarified that the following three factors affect successional patterns as well as fallow durations ; geomorphological and hydrological conditions, vegetation types surrounding paddy fields and management regime such as plowing and irrigation. Based on those results and estimation of vegetation changes on a regional scale, we suggested the importance of developing management guidelines for conservation of both biodiversity and agricultural land resources
    (2)Change of soil physical properties of abandoned paddy fields : We studied on change of soil physical properties of abandoned paddy fields in Oshima village, Niigata prefecture as the years roll on. We conclude that the abandoned paddy fields 1)return to soil condition before reclamation, 2)have similar bearing capacity of hard pan of wet type them. Moreover micro-geography affects water content of cultivation layer. Hence temporal management, i.e., cultivation, would be useful to sustain soil physical condition of plow layer/hard pan at the abandoned paddies, particularly in wet type.
    (3)Rational restoration system of abandoned paddy fields ; We considered about the relation between the vegetation of abandoned paddy fields into which trees invaded and the secular change of restoration cost of abandoned paddy field. Trees' invasion forms differed greatly between the wet farm land and the dry farm land. It was admitted that conditions, such as a disturbance, stress, and competition, had compounded the form of invasion. Moreover, restoration cost of abandoned paddy field was presumed based on the measurement experiment of the work concerning trees' felling, taking out, and processing. Moreover, the total cost was calculated based on aging of restoration cost of abandoned paddy field, and it was shown that annual continuous weeding management is the most economical for maintaining the producing function of abandoned paddy field.
    (4)Management system of abandoned or fallow paddy fields : We examined the generating mechanism of degrated farmland in former Higashi-kubiki-Gun Niigata Pref., and it was shown clearly that mechanical factors acted in early stages and the incitant factors acted strongly after the 1970s. Furthermore, desolationized advance was predicted paying attention to the labor force, and it was shown that 50 to 60% of farmland may be abandoned over the next 20 years. Moreover, the simple land suitability classification technique was developed based on the relation between management subject formation of farmland resources and resource state. In addition, the management survey of the fallow paddy field was performed and the conditions of the summer fallow cultivation enforcement which leads to reduction of extensive chemical herbicides use were examined. Moreover, the infrastructure improvement system corresponding to deep flooding management effective for weeding out and the control-of-maintenance system by pasturage of a cultivation abandonment rice field were examined.

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  • Design and development of a simple and easy-to-measure in-situ permeability test to determine hydraulic conductivity of soil.

    Grant number:12556036

    2000 - 2002

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B)

    Awarding organization:Japan Society for the Promotion of Science

    MORII Toshihiro, AODA Tadao, TAKESHITA Yuji, INOUE Mitsuhiro

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    Grant amount:\8500000 ( Direct Cost: \8500000 )

    It is well recognized that in-situ measurements of saturated and unsaturated moisture properties of soil are essential for accurate prediction of contaminant transport as well as water movement in soil such as agricultural field, compacted soil, natural slope and landfill. In the Research Project field and laboratory investigations are conducted to develop an in-situ permeability test that has a superior feature that an equipment to measure data as well as a procedure to determine the soil permeability is quite simple. The in-situ permeability test investigated consists of a Guelph pressure infiltrometer (GPI) method combined with a Guelph well permeameter (GWP) method, both of which have been proposed by the researchers of Guelph University, Canada. The GPI and GWP methods determine a field-saturated hydraulic conductivity of soil Kfs based on a measurement of constant-head steady infiltration into a soil from a single ring inserted a small depth into the soil and from a well bored a small depth into the soil, respectively. Kfs can describe well water movement in soil because many natural and man-made infiltration processes result in significant air entrapment within the soil.
    In the first and second years of the Research Project, a practical accuracy and an applicability of the GPI and the GWP methods were examined by a field investigation, a laboratory soil bin test and a numerical analysis. If is found out that the GPI and the GWP methods determine accurately and effectively Kfs in plane and along depth of soil, respectively. Also is found that a statistical property of the soil permeability can be determined,effectively by the GPI method because it does not require a tedious time to determine Kfs at a site. The in-situ permeability test investigated was applied to sand sediment soil formed by a debris flow of soil. From the test results and a permeability test of the sand sediment soil additionally conducted in the laboratory, an integrated procedure is effectively proposed to determine the hydraulic permeability of the sand sediment which is characterized by a inclusion of large gravel and cobbles into the sand soil. In the last year of the Research Project, the in-situ permeability test was extended so that it was able to determine unsat urated moisture properties of soil as well as the hydraulic conductivity of soil. Both an infiltration rate from the GPI ring or the GWP well and a moisture content of soil were measured during the constant-head infiltration with time, and were numerically back-calculated to estimate soil parameters which defined optimally unique relationships between moisture content, negative pressure head and unsaturated hydraulic conductivity of soil.

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  • RESEARCH OF THE UNDERDRAIN EFFECT

    Grant number:10460106

    1998 - 2000

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (B).

    Awarding organization:Japan Society for the Promotion of Science

    NAKANO Toshirou, YOSHUDA Syouji, AODA Tadao

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    Grant amount:\5400000 ( Direct Cost: \5400000 )

    Vane test which can be measured from settlement and slip ratio is suitable for measuring bearing capacity of soil of paddy field where the plant remains of the intactness piles up deeply. In the time which cuts down the rice plant, plow layer dried. The shear resistance force of the soil increases, because the soil structure is reconstituted by fiber component in the plant remains, when it consists so. It was proven that the friction resistance component excelled for the mowing stage in the silty cohesive soil, though the shear resistance force was almost fixed. In the way which connected one of two underdrains in lateral drain, the soil water tension is largely in the drying tendency, and especially, there is largely the drying of the plowsole layer than the plow layer in the connected hot day in August. It is based on the effect of the transpiration from the rice plant, since there is the root group area in the plowsole layer.

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  • 塩類集積土壌の回復ならびに二次的塩害防止に関する研究

    Grant number:10896008

    1998

    System name:科学研究費助成事業

    Research category:基盤研究(C)

    Awarding organization:日本学術振興会

    矢野 友久, 粟生田 忠雄, 籾井 和朗, 小葉田 亨, 西山 壮一, 北村 義信

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    Grant amount:\3100000 ( Direct Cost: \3100000 )

    カザフスタン共和国クジルオルダ州の旧コルフォーズにおいて8圃式輪作体系を採用している面積約700haの潅漑ブロックにおける水・塩収支の資料を収集した.従来,水田からの湛水が塩のリーチング効果をもたらし,隣接する農地の潅漑を賄うという利点が強調されていたが,現実には,水田の土性が重粘土の場合にはリーチング効果も十分でなく,また,排水路への排水,塩分の排除もあまり機能していないことが判明した.排水路の排水機能の強化と周辺農地の地表潅漑方式の導入が重要である.
    現地の塩類集積農地におけるリーチングによる土壌改良資料を検討し,リーチング潅漑方式と潅漑水量,土性,亀裂等のマクロ間隙の存在によって,リーチング効率が大きく左右される結果を得た.これらの要素の影響度合いを明らかにするために,カラム実験を行い,同一水量を連続的に湛水する方式よりも,数回に分けて湛水する方式の方が効率がよく,それは,土中の水移動が不飽和の状態であることによるものであることが判った.
    現地の主要作物,水稲の消費水量ならびに潅漑水量の実測データを比較した結果,1作期間に対して,それぞれ,2,400mm,4,250mmであった.水稲の蒸発散量は消費水量の約半分と推定され,地区内外への浸透排水量が著しく大きいことを示した.地区内の地下水位上昇ならびに地区外への排水量を抑制するための方法として,耐塩性植物を栽培することによる排水の再利用方法を検討した.
    潅漑水による広域的な水,塩の挙動を明らかにするための有限要素法によるシミュレーションについて,プログラムアルゴリズム,入力パラメータを検討し,信頼できるプログラムを最終的に確立した.また,土壌への吸着ならびに脱着反応過程を考慮した土壌中の塩類の挙動に関するモデルの導入についても検討を行った.

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  • 半乾燥地における農地の塩類化対策について

    1996

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    Grant type:Competitive

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  • 農地における土壌水分移動の研究

    1987

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    Grant type:Competitive

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  • 土壌毛管水の水理学的連続性について

    1987

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    Grant type:Competitive

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  • 生物多様性を考慮した水田およびその周辺の環境創造型稲作の展開

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    Grant type:Competitive

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  • 多孔質体内における水の運動についての研究

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    Grant type:Competitive

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Teaching Experience

  • スタディ・スキルズAIc

    2022
    Institution name:新潟大学

  • スタディ・スキルズAIIc

    2022
    Institution name:新潟大学

  • 水土環境工学演習

    2020
    Institution name:新潟大学

  • 卒業論文Ⅰ

    2020
    Institution name:新潟大学

  • 卒業論文Ⅱ

    2020
    Institution name:新潟大学

  • スタディ・スキルズA c

    2020
    Institution name:新潟大学

  • 農学入門Ⅰ

    2020
    Institution name:新潟大学

  • 農学入門Ⅱ

    2020
    Institution name:新潟大学

  • 水土環境工学実験

    2019
    Institution name:新潟大学

  • 環境地水学

    2018
    Institution name:新潟大学

  • 土環境工学

    2018
    Institution name:新潟大学

  • 農環境デザイン入門

    2018
    Institution name:新潟大学

  • 土と水

    2017
    Institution name:新潟大学

  • 平和を考えるB

    2016
    Institution name:新潟大学

  • 平和を考える in 新潟

    2013
    -
    2015
    Institution name:新潟大学

  • 研究発表演習Ⅱ(学外発表)

    2013
    Institution name:新潟大学

  • 研究発表演習Ⅱ(中間発表)

    2013
    Institution name:新潟大学

  • 環境科学特定演習Ⅱ

    2013
    Institution name:新潟大学

  • 環境科学セミナーⅡ

    2012
    Institution name:新潟大学

  • 環境科学特定研究Ⅱ

    2012
    Institution name:新潟大学

  • 環境科学総合演習Ⅱ

    2012
    Institution name:新潟大学

  • 農業工学演習

    2010
    -
    2018
    Institution name:新潟大学

  • 農業工学実験

    2010
    -
    2018
    Institution name:新潟大学

  • 農業工学インターンシップ

    2010
    Institution name:新潟大学

  • 農業機械設計・製図(Ⅰ)

    2010
    Institution name:新潟大学

  • 生物生産情報工学インターンシップ

    2010
    Institution name:新潟大学

  • 農業システム工学演習

    2010
    Institution name:新潟大学

  • 地域環境工学インターンシップ

    2010
    Institution name:新潟大学

  • 農地工学

    2009
    -
    2013
    Institution name:新潟大学

  • 平和を考えるA

    2009
    -
    2012
    Institution name:新潟大学

  • 応用土質力学

    2009
    -
    2012
    Institution name:新潟大学

  • 生産環境科学概論Ⅰ

    2008
    -
    2016
    Institution name:新潟大学

  • 農地工学特論

    2007
    Institution name:新潟大学

  • 土木測量学

    2007
    -
    2018
    Institution name:新潟大学

  • 土壌物理学

    2007
    -
    2017
    Institution name:新潟大学

  • 土木測量学実習

    2007
    -
    2017
    Institution name:新潟大学

  • 測量学実習

    2007
    -
    2014
    Institution name:新潟大学

  • 地域環境工学実験

    2007
    -
    2010
    Institution name:新潟大学

  • 地域環境工学演習

    2007
    -
    2010
    Institution name:新潟大学

  • 基礎土質力学

    2007
    -
    2008
    Institution name:新潟大学

  • 生産環境科学概論I

    2007
    Institution name:新潟大学

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Social Activities

  • Coordinator of Citizens' college, Niigata

    Role(s): Planner, Organizing member, Report writing

    Lifelong Education Division, Niigata City  Citizens' college course "Producing the region through agriculture and food"  2018.6 - 2019.1

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  • University Section of Niigata Basketball Association

    Role(s): Advisor

    Japan Basketball Association  2017.4

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