研究者詳細

顔写真

アデヘナ　テスフアウ　ベケレ
Adhena Tesfau Bekele
Adhena Tesfau Bekele
所属
大学院農学研究科　生物生産科学専攻　植物生命科学講座（土壌立地学分野）
職名
助教
学位

  • 博士（環境科学）（岡山大学）

  • Ｍ．Ｓ．（Addis Ababa University）

学歴 4

  • 岡山大学

    2022年4月 ～ 2025年3月

  • 岡山大学

    2021年10月 ～ 2022年3月

  • Addis Ababa University　Aquatic Ecosystems and Environmental Management (M.Sc.)

    2013年10月 ～ 2016年7月

  • Mekelle University　Biology (B.Sc.)

    2010年10月 ～ 2013年7月

所属学協会 5

  • Ethiopian fisheries and aquatic science association

    2014年2月 ～ 2017年2月

  • World Congress of Soil Science

    2026年6月 ～

  • Japan society of soil science and plant nutrition

    2026年5月 ～

  • Japan Geoscience Union

    2024年1月 ～

  • Japan Society on Water Environment

    2022年11月 ～

研究キーワード 2

  • Soil contaminants remediation

  • Soil GHGs emissions, Soil biogeochemistry, Sediment microbial fuel cells (SMFC), Carbon sequestration

研究分野 1

  • 環境・農学 / 環境材料、リサイクル技術 /

受賞 3

  1. Best poster presenter award

    2026年6月　World Congress of Soil Science 2026　Performance of sediment microbial fuel cells to inhibit arsenic availability in soil porewater: A laboratory study of different quality Japanese paddy soils

  2. MEXT scholarship

    2021年10月　Japanese Government Ministry of Education, Culture, Sports, Science and Technology (MEXT)

  3. Austrian Development Cooperation (ADC) Fellowship Award

    2013年10月　Austrian Development Cooperation (ADC)

論文 6

  1. Coupling effects of biochar and sediment microbial fuel cells on CH4 and CO2 emissions from straw-amended paddy soil

    Adhena Tesfau Bekele, Morihiro Maeda, Nozomi Nakahara, Ayumi Hashiguchi, Hiroaki Somura, Satoshi Akao, Chiyu Nakano, Yuta Nishina

    Journal of Soils and Sediments　2025年10月20日

    DOI： 10.1007/s11368-025-04133-4 　

    ISSN：1439-0108 1614-7480

    詳細を見る 詳細を閉じる

    <jats:title>Abstract</jats:title> <jats:sec> <jats:title>Purpose</jats:title> <jats:p>The independent incorporation of biochar and sediment microbial fuel cells (SMFCs) into paddy soil has been shown to reduce methane (CH<jats:sub>4</jats:sub>) emissions. However, the application of rice straw into paddy soil enhances the availability of labile carbon that stimulates methanogen growth, counteracting the mitigation effects of both methods. This study, therefore, aimed to investigate the effect of coupling biochar and SMFC on CH<jats:sub>4</jats:sub> and CO<jats:sub>2</jats:sub> emissions from straw-amended paddy soil.</jats:p> </jats:sec> <jats:sec> <jats:title>Materials and methods</jats:title> <jats:p>Single chamber SMFC setups constructed using acrylic columns (height, 25 cm; inner diameter, 9 cm) with six treatments were established using soil amended with 0% (0BC), 1% (1BC), and 2% (2BC) biochar: with and without SMFC conditions. Stainless steel mesh (15 × 3 cm) and graphite felt (6 × 5 cm) were used as anode and cathode materials, respectively.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>Cumulative emission of CH<jats:sub>4</jats:sub> in the 0BC treatment with SMFC was 39% less than in that without SMFC. Biochar addition and SMFC operation together further reduced CH<jats:sub>4</jats:sub> emission by 57% and 60% in 1BC and 2BC treatments, respectively, compared to that in the 0BC treatment without SMFC operation. The relative abundance of microbial communities indicated methane-oxidizing bacteria were enriched in the presence of biochar and hydrogenotrophic <jats:italic>Methanoregula</jats:italic> were suppressed by SMFC operation. This suggested that SMFC mainly inhibited CH<jats:sub>4</jats:sub> production by outcompeting hydrogenotrophic archaea.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusion</jats:title> <jats:p>The use of biochar made from leftover rice straw has an interactive effect on SMFC operation and both methods can be used to reduce CH<jats:sub>4</jats:sub> emission from straw-amended paddy soil.</jats:p> </jats:sec>

  2. Carbon sequestration potentials of selected wetlands along the shorelines of Lake Zwai, Ethiopia

    TESFAU BEKELE ADHENA

    Comprehensive Study of Lake Zwai and Its Watershed for Sustainable Management　2025年

  3. Effects of Sediment Microbial Fuel Cells on CH4 and CO2 Emissions from Straw Amended Paddy Soil

    Adhena Tesfau Bekele, Morihiro Maeda, Satoshi Akao, Hiroaki Somura, Chiyu Nakano, Yuta Nishina

    Journal of Water and Environment Technology　2024年

    DOI： 10.2965/jwet.24-044 　

    ISSN：1348-2165

  4. Intensification of climate change mitigation and adaptation actions through wetland conservation: the case of Ethiopian freshwater wetlands

    TESFAU BEKELE ADHENA, Yoseph Haile

    Geology, Ecology, and Landscapes　2023年1月2日

    DOI： 10.1080/24749508.2021.1923271 　

    ISSN：2474-9508

  5. Biosphere Excursion: Ethiopia - United Arab Emirates; final excursion report, 2015-2016

    UNESCO Liaison Office in Addis Ababa AND Hänsel, Vera Maria

    2016年

    出版者・発行元： UNESCO Addis Ababa Liaison Office

  6. Carbon Sequestration Potentials of Selected Wetlands at Lake Ziway, Ethiopia

    Bekele, Tesfau

    2016年

    出版者・発行元： {The International Institute for Science, Technology and Education (IISTE)}

︎全件表示 ︎最初の5件までを表示

書籍等出版物 2

  1. Comprehensive Study of Lake Zwai and Its Watershed for Sustainable Management

    Brook Lemma

    Addis Ababa University Library　2025年7月

    ISBN: 9789999006255

  2. BIOSPHERE EXCURSION ETHIOPIA – UNITED ARAB EMIRATES FINAL EXCURSION REPORT 2015-2016

    Hänsel, Vera Maria

    UNESCO Addis Ababa Liaison Office with the African Union Commission and UNECA　2016年

講演・口頭発表等 4

  1. Performance of sediment microbial fuel cells to inhibit arsenic availability in soil porewater: A laboratory study of different quality Japanese paddy soils

    Adhena Tesfau Bekele

    World congress of sol science　2026年6月8日

  2. Coupling Effects of Biochar and Sediment Microbial Fuel Cells on CH4 and CO2 Emissions from Rice Straw-Treated Paddy Soil

    TESFAU BEKELE ADHENA, Satoshi Akao, Nozomi Nakahara, Hiroaki Somura, Morihiro Maeda

    Japan Geoscience Union　2024年5月30日

  3. Effects of sediment microbial fuel cells on CH4 and CO2 emissions from paddy soil with rice straw at different rates

    Adhena Tesfau Bekele, Hiroaki Somura, Morihiro Maeda

    Japan Society on Water Environment　2023年3月18日

  4. Carbon sequestration potentials of selected wetlands at Lake Ziway, Ethiopia. 招待有り

    Tesfau Bekele, Brook Lemma, Seyoum Mengistou

    International conference on comprehensive study of Lake Zwai and its watershed　2017年1月26日

担当経験のある科目(授業) 4

  1. Reading of Scientific English 1　東北大学

  2. 生命と自然　東北大学

  3. 科学英語講読Ⅰ　東北大学

  4. Fisheries, Aquaculture, Aquatic Science and Wetland Management　Dire Dawa University