Development of integrated soil management technology towards rehabilitation of degraded soils in the Tropics

• Project/Area Number: 18H02315
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 41050:Environmental agriculture-related
• Research Institution: Aichi University
• Principal Investigator: Kosaki Takashi 愛知大学, 国際コミュニケーション学部, 教授 (00144345)
• Co-Investigator(Kenkyū-buntansha): 村瀬 潤 名古屋大学, 生命農学研究科, 教授 (30285241) ; 杉原 創 東京農工大学, (連合)農学研究科(研究院), 准教授 (30594238) ; 沢田 こずえ 京都大学, 地球環境学堂, 研究員 (60795285)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000); Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 劣化土壌の修復 / サブサハラ・アフリカ / 生態系の持続的管理 / 土壌微生物の群集・機能 / 炭素利用効率 / 土壌微生物の群集構造 / 微生物多様性 / 炭素利用率 / 土壌有機物

Outline of Final Research Achievements

The negative spiral of poverty and hunger caused by soil degradation is becoming more severe especially in tropical regions. In this research, in addition to the conventional quantitative management of organic matter, we hypothesized that the management of soil microbial functions, such as mineralization/immobilization of organic matter, should be possible to effectively rehabilitate and conserve degraded soil. We conducted the field experiments in Tanzania and India, to reveal the relationship between the soil microbial community and its function under different land managements.
The results showed that 1) the difference in the microbial carbon use efficiency caused by land use (forest and cropland) was mainly due to the difference in the fungal community, 2) In a large amount of farm yard manure application plot, soil microbial function, such as carbon mineralization, was improved, resulting in the efficient accumulation of organic matter in the soil.

Academic Significance and Societal Importance of the Research Achievements

『持続可能な開発目標(SDGs)』の最優先課題「貧困と飢餓の撲滅」は農学が解決すべき究極の目標であり、劣化土壌の修復は喫緊の課題である。本研究では、熱帯畑作地における土地利用が土壌微生物群集やその機能に与える影響について、SIP法などの先端技術を駆使することで解明した結果、従来想定されていた細菌群集に加えて、畑地の炭素循環への貢献度が不明瞭であった糸状菌群集の果たす役割が大きいことを明らかにした。また熱帯畑作地における土壌壌微生物の機能改善に必要な堆肥施用技術に関する新規知見も得られた。今後これらの知見を融合・発展することで、熱帯地域における劣化土壌修復技術の社会実装が可能になる。

Research Products

• [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)
• [Int'l Joint Research] INRA, UMR&SOL, Montpellier(フランス)
• [Int'l Joint Research] Tamil Nadu Agricultral University(インド)
• [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)
• [Int'l Joint Research] INRA(フランス)
• [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)
• [Int'l Joint Research] Tamil Nadu Agricultural University(インド)
• [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)
• [Int'l Joint Research] Tamil Nadu Agricultural University(インド)
• [Journal Article] Protists: the hidden ecosystem players in a wetland rice field soil (2023)
  • Author(s): Murase Jun, Asiloglu Rasit
  • Journal Title: Biology and Fertility of Soils Volume: - Issue: 6 Pages: 255-255
  • DOI: 10.1007/s00374-023-01705-9
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of soil acidity amelioration by fly ash application on the priming effect in red-yellow cropland soils of Okinawa, Japan (2022)
  • Author(s): 安野 秀瑛、杉原 創、関 真由子、柴田 誠、伴 琢也、田中 治夫
  • Journal Title: Japanese Journal of Soil Science and Plant Nutrition Volume: 93 Issue: 1 Pages: 12-19
  • DOI: 10.20710/dojo.93.1_12
  • NAID: 130008159767
  • ISSN: 0029-0610, 2424-0583
  • Year and Date: 2022-02-05
  • Peer Reviewed
• [Journal Article] Soil nitrogen dynamics and sorghum productivity as affected by biochar in the dry tropics (2022)
  • Author(s): Seki Mayuko、Sugihara Soh、Miyazaki Hidetoshi、Jegadeesan Muniandi、Kannan Pandian、Tanaka Haruo
  • Journal Title: Nutrient Cycling in Agroecosystems Volume: 124 Issue: 3 Pages: 423-435
  • DOI: 10.1007/s10705-022-10248-8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Impact of biochar and manure application on in situ carbon dioxide flux, microbial activity, and carbon budget in degraded cropland soil of southern India (2022)
  • Author(s): Seki Mayuko、Sugihara Soh、Miyazaki Hidetoshi、Jegadeesan Muniandi、Kannan Pandian、Bertrand Isabelle、Tanaka Haruo
  • Journal Title: Land Degradation & Development Volume: - Issue: 10 Pages: 1626-1636
  • DOI: 10.1002/ldr.4234
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Correction to: Continuous maize cropping accelerates loss of soil organic matter in northern Thailand as revealed by natural 13C abundance (2022)
  • Author(s): Fujii Kazumichi、Mitani Risako、Inagaki Yoshiyuki、Hayakawa Chie、Shibata Makoto、Kosaki Takashi、Ueda Miki U.
  • Journal Title: Plant and Soil Volume: 474 Issue: 1-2 Pages: 263-263
  • DOI: 10.1007/s11104-022-05363-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of the Structure and Diversity of Root-Associated and Soil Microbial Communities Between Acacia Plantations and Native Tropical Mountain Forests (2021)
  • Author(s): Sawada Kozue、Watanabe Shinichi、Nguyen Ho Lam、Sugihara Soh、Seki Mayuko、Kobayashi Hana、Toyota Koki、Funakawa Shinya
  • Journal Title: Frontiers in Microbiology Volume: 12 Pages: 735121-735121
  • DOI: 10.3389/fmicb.2021.735121
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impacts of conversion from natural forest to cedar plantation on the structure and diversity of root-associated and soil microbial communities (2021)
  • Author(s): Sawada Kozue、Inagaki Yoshiyuki、Sugihara Soh、Funakawa Shinya、Ritz Karl、Toyota Koki
  • Journal Title: Applied Soil Ecology Volume: 167 Pages: 104027-104027
  • DOI: 10.1016/j.apsoil.2021.104027
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effects of clearcutting and girdling on soil respiration and fluxes of dissolved organic carbon and nitrogen in a Japanese cedar plantation (2021)
  • Author(s): Fujii Kazumichi、Funakawa Shinya、Hayakawa Chie、Kosaki Takashi
  • Journal Title: Forest Ecology and Management Volume: 498 Pages: 119520-119520
  • DOI: 10.1016/j.foreco.2021.119520
  • Peer Reviewed / Open Access
• [Journal Article] Soils and sustainable development goals of the United Nations: An International Union of Soil Sciences perspective. (2021)
  • Author(s): Lal, R., Bouma, J., Brevik, E., Dawson, L., Field, D., Glaser, B., Hatano, R., Hartemink, A., Kosaki, T., Lascelles, B., Monger, C., Muggler, C., Ndzana, G.M., Norra, S., Pan, X., Paradelo, R., Reyes Sanchez, L.B., Sanden, T., and Zhang, J.
  • Journal Title: Geoderma Regional Volume: 25 Pages: e00398-e00398
  • DOI: 10.1016/j.geodrs.2021.e00398
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Top-down effects of protists are greater than bottom-up effects of fertilisers on the formation of bacterial communities in a paddy field soil (2021)
  • Author(s): Asiloglu Rasit、Kenya Kobayashi、Samuel Solomon Oloruntoba、Sevilir Bahar、Murase Jun、Suzuki Kazuki、Harada Naoki
  • Journal Title: Soil Biology and Biochemistry Volume: 156 Pages: 108186-108186
  • DOI: 10.1016/j.soilbio.2021.108186
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Managing soils for recovering from the COVID-19 pandemic (2020)
  • Author(s): Lal, R., Brevik, E., Dawson, L., Field, D., Glaser, B., Hartemink, A., Hatano, R., Lascelles, B., Monger, C., Scholten, T., Singh, B., Spiegel, H., Terribile, F., Basile, A., Zhang, Y., Horn, R., Kosaki, T. and Sanchez, L.
  • Journal Title: Soil Systems Volume: 4(3) Issue: 3 Pages: 46-46
  • DOI: 10.3390/soilsystems4030046
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A comparison of lignin-degrading enzyme activities in forest floor layers across a global climatic gradient. (2020)
  • Author(s): Fujii, K., Nakada Y, Umezawa K, Yoshida M, Shibata M, Hayakawa C, Inagaki Y, Hangs R.
  • Journal Title: Soil Ecology Letters Volume: 未定 Issue: 4 Pages: 1-13
  • DOI: 10.1007/s42832-020-0042-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a 13C analysis (2019)
  • Author(s): Sugihara, S., Shibata, M., MvondoZe, A.D., Tanaka, H., Kosaki, T., Funakawa, S.
  • Journal Title: Scientific Reports Volume: 9:9835 Issue: 1 Pages: 1-9
  • DOI: 10.1038/s41598-019-46406-2
  • NAID: 120006709429
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] 土壌情報システムの基盤構築とその応用による土壌の劣化防止と修復に関する研究 (2022)
  • Author(s): 小﨑隆
  • Organizer: 第93回日本農学会大会
  • Invited
• [Presentation] 熱帯アルカリ性畑土壌における堆肥施用は 土壌微生物の養分制限を緩和し、炭素利用効率を増加させた (2022)
  • Author(s): 阪井花帆・杉原創・関真由子・宮嵜英寿・Muniandi J, Pandian K・田中治夫・小﨑隆
  • Organizer: 日本土壌肥料学会・東京大会
• [Presentation] 沖縄県石垣島においてアルカリ環境が微生物群集および炭素利用効率に与える影響の解明 (2022)
  • Author(s): 渕上佳奈・杉原 創・関 真由子・伊ヶ崎健大・荒井見和・田中治夫
  • Organizer: 日本土壌肥料学会・東京大会
• [Presentation] 耕起は火山灰土壌の難分解性有機物の分解を促進するか？ (2022)
  • Author(s): 早川智恵・山中春香・内田陽之・藤井一至・平井英明・小﨑隆
  • Organizer: 日本土壌肥料学会・東京大会
• [Presentation] 土壌情報システムの基盤構築とその応用による土壌の劣化防止と修復に関する研究 (2022)
  • Author(s): 小﨑隆
  • Organizer: 日本土壌肥料学会・東京大会
  • Invited
• [Presentation] Effect of farmyard manure application on microbial carbon use efficiency in the tropical alkaline soil of south India (2022)
  • Author(s): Kaho Sakai, Soh Sugihara,Mayuko Seki,Hidetoshi Miyazaki,Muniandi Jegadeesan, Pandian Kannan, Haruo Tanaka, Takashi Kosaki
  • Organizer: SOM2022
  • Int'l Joint Research
• [Presentation] Land use affects microbial community composition but not carbon use efficiency in the dry tropical alkaline soil of South India (2022)
  • Author(s): Kana Fuchigami, Soh Sugihara, Hidetoshi Miyazaki, Mayuko Seki, Muniandi Jegadeesan, Pandian Kannan, Kozue Sawada, Makoto Shibata, Koki Toyoda, Haruo Tanaka, Takashi Kosaki
  • Organizer: SOM2022
  • Int'l Joint Research
• [Presentation] Exploring the link between bacteria and fungal communities and carbon use efficiency in dry tropical cropland and forest soils of Tanzania (2022)
  • Author(s): Soh Sugihara, Hana Kobayashi, Kozue Sawada, Haruo Tanaka, Koki Toyota, Jun Murase, Makoto Shibata, Boniface Massawe, Muniandi Shitindi, Isabelle Bertland, Takashi Kosaki
  • Organizer: SOM2022
  • Int'l Joint Research
• [Presentation] Towards further collaboration with the IUSS. (2022)
  • Author(s): Takashi Kosaki
  • Organizer: The 15th International Conference of the East and Southeast Asia Federation of Soil Science Societies (ESAFS)
  • Int'l Joint Research / Invited
• [Presentation] 土壌劣化：そのメカニズムと修復 (2022)
  • Author(s): 小﨑隆
  • Organizer: 復興農学会2022年度大会
  • Invited
• [Presentation] 水稲根圏微生物叢の形成に及ぼす水稲品種、土壌タイプ、施肥の影響 (2022)
  • Author(s): 天野 真宏, 長谷川 昂平, 森 拓也, 西内 俊策, 土井 一行, 勝見尚也, Rasit ASILOGLU, 高橋 宏和, 中園 幹生, 村瀬 潤
  • Organizer: 日本微生物生態学会
• [Presentation] 水田土壌表層の微生物群集に及ぼす光の影響 (2022)
  • Author(s): 出水明日香、村瀬潤
  • Organizer: 日本土壌微生物学会
• [Presentation] 南インドの畑地土壌におけるバイオ炭と堆肥の同時施用が施用後の有機物分解に与える影響 (2021)
  • Author(s): 関真由子・杉原創・宮嵜英寿・Muniandi Jegadeesan・Pandian Kannan・柴田誠・Isabelle Bertland・田中治夫
  • Organizer: 日本土壌肥料学会・北海道大会
• [Presentation] 石炭灰施用による酸度矯正がプライミング効果に与える影響の解明ー沖縄県の赤黄色土を用いた事例ー (2021)
  • Author(s): 安野秀瑛・杉原創・関真由子・ 柴田誠・伴琢也・田中治夫
  • Organizer: 日本土壌肥料学会・北海道大会
• [Presentation] 熱帯塩基性土壌における土地理用の違いが微生物群集と炭素利用効率に及ぼす影響の解明 (2021)
  • Author(s): 渕上佳奈・杉原創。宮嵜英寿・関真由子・Muniandi Jegadeesan・Pandian Kannan・沢田こずえ・柴田誠・豊田剛己・田中治夫・小﨑隆
  • Organizer: 日本土壌肥料学会・北海道大会
• [Presentation] Towards the alliance for environmental education to achieve SDGs. (2021)
  • Author(s): Takashi Kosaki
  • Organizer: International Science Council, Members Forum
  • Int'l Joint Research / Invited
• [Presentation] Towards Judicious Management of Peatlands for enhancing SDGs. (2021)
  • Author(s): Takashi Kosaki
  • Organizer: International Seminar Tropical Peatland (ISTP) 2021
  • Int'l Joint Research / Invited
• [Presentation] 異なる水稲栽培品種の根圏微生物群集の施肥に対する応答 (2021)
  • Author(s): 天野真宏、長谷川昂平、森拓也、西内俊策、土井一行、松岡信、高橋宏和、中園幹生、村瀬潤
  • Organizer: 日本土壌肥料学会・北海道大会
• [Presentation] SIP 法を用いた炭素利用効率に関わる土壌微生物群集の 土地利用間での比較：タンザニアにおける事例 (2020)
  • Author(s): 小林花奈・杉原創・沢田こずえ・田中治夫・李哲揆・豊田剛己・村瀬潤・柴田誠・Shitindi, M・Massawe, B・Bertland, I・小崎隆
  • Organizer: 日本土壌肥料学会・岡山大会
• [Presentation] "Soil Education Manual - Toolbox for DIY program at your classroom" by Intgernational Union of Soil Sciences (IUSS). (2020)
  • Author(s): Kosaki, T, Lal, R. and Reyes Sanchez, L.B.
  • Organizer: European Geosciences Union General Assembly 2020, Vienna, Austria.
  • Int'l Joint Research
• [Presentation] Soils in the humid tropics: Degradation processes and strategies for remediation. (2020)
  • Author(s): Kosaki, T.
  • Organizer: The 1st International Conference on Sustainable Tropical Land Management (ICSTLM) 2020, Jakarta, Indonesia.
  • Int'l Joint Research / Invited
• [Presentation] Utilization of current digital technologies and way forward in agriculture and environment in a changing world., Johor Bahru, Malaysia (2020)
  • Author(s): Kosaki, T.
  • Organizer: Soil Science Conference of Malaysia., Johor Bahru, Malaysia.
  • Int'l Joint Research / Invited
• [Presentation] Climate-Resilient Agri-Environmental Systems. (2020)
  • Author(s): Kosaki, T.
  • Organizer: International Symposium on Climate-Resilient Agri-Environmental Systems: Contributing tothe United Nations Sustainable Development Goals,, Dublin, Ireland
  • Int'l Joint Research / Invited
• [Presentation] Site specific fertilizer management for enhancing sustainability and productivity of soil resources. (2020)
  • Author(s): Kosaki, T.
  • Organizer: The 2nd International Conference on Sustainability ”Innovation and Diversification”, Pune, India
  • Int'l Joint Research / Invited
• [Presentation] 土壌に導入された微生物を利用する微生物群集のStable Isotope Probing法による解析 (2019)
  • Author(s): 南川浩樹, 大島崇彰, Osnat Gillar, 村瀬潤
  • Organizer: 日本土壌肥料学会
• [Presentation] Long-term fallow management increased labile organic matter but not clay associated stable organic matter in Niger, West Africa. (2019)
  • Author(s): Sugihara S., Murayama K., Ikazaki K., Fatondji D., Tanaka H., Kosaki T., Funakawa S.
  • Organizer: SOM2019
  • Int'l Joint Research
• [Presentation] Relationship between soil microbial diversity and its carbon use efficiency under different land-use in Tanzania. (2019)
  • Author(s): Kobayashi H., Sugihara S., Sawada K., Kilasara M., Tanaka H., Murase J., CholGyu L., Toyota K., Shibata M., Kosaki T
  • Organizer: SOM2019
  • Int'l Joint Research
• [Presentation] Judicious management of land resources towards sustainable environment and food security. (2019)
  • Author(s): Kosaki, T.
  • Organizer: International Seminar and Congress of Indonesian Soil Science Society, Bandung, Indonesia
  • Int'l Joint Research / Invited
• [Presentation] Harmonization of natural and agricultural soil systems for sustaining society. (2019)
  • Author(s): Kosaki, T.
  • Organizer: First Joint Meeting on Soil and Plant System Sciences, Bari, Italy
  • Int'l Joint Research / Invited
• [Presentation] Freedom from land degradation - Towards enhancing human security and achieving sustainable development goals- (2019)
  • Author(s): Kosaki, T.
  • Organizer: The 9th International Congress of European Society for Soil Conservation, Tirana, Albania
  • Int'l Joint Research / Invited
• [Presentation] Diversification of land management: Clue for sustaining agricultural production and human security. (2019)
  • Author(s): Kosaki, T.
  • Organizer: XXII Congress of Latin American Society of Soil Science, Montevideo, Uruguay
  • Int'l Joint Research / Invited
• [Presentation] Evaluation and management of soil fertility in the SDGs context. (2019)
  • Author(s): Kosaki, T.
  • Organizer: XLIV Mexican Soil Science Congress, Aguascalientes, Mexico
  • Int'l Joint Research / Invited
• [Presentation] Towards Further Collaboration between Ukrainian Society of Soil Scientists and Agrochemists and International Union of Soil Sciences (IUSS). (2018)
  • Author(s): Kosaki, T.
  • Organizer: The 11th Congress of Soil Scientists and Agrochemists of Ukraine, Kharkiv, Ukraine
  • Int'l Joint Research / Invited
• [Presentation] Need for enhancing collaboration between national/regional societies and IUSS to advance International Decade of Soils (IDS). (2018)
  • Author(s): Kosaki, T.
  • Organizer: The 3rd Eurasian Soil Congress on “Environment and Soil Resources Conservation”, Almaty, Kazakhstan
  • Int'l Joint Research / Invited
• [Presentation] Soil education to advance sustainable life and soil health. (2018)
  • Author(s): Kosaki, T.
  • Organizer: Korean Society of Soil Science and Fertilizer Conference for Celebrating the 50th Anniversary, Kyonju, Korea
  • Int'l Joint Research / Invited
• [Presentation] Combat against soil degradation to advance Sustainable Development Goals (SDGs) in International Decade of Soils (IDS). (2018)
  • Author(s): Kosaki, T.
  • Organizer: The 30th Post Graduate Institute of Agriculture Annual Congress, Kandy, Sri Lanka
  • Int'l Joint Research / Invited
• [Presentation] Towards wise use of natural resources to enhance Sustainable Development Goals (SDGs) in International Decade of Soils (IDS) Initiative of IUSS (2018)
  • Author(s): Kosaki, T.
  • Organizer: The 22nd Dokuchaev Conference for Young Scientists "Soil is the System of Functional Connections in Nature", St. Petersburg, Russia
  • Int'l Joint Research / Invited
• [Presentation] Sustainable Management of Cultural Landscapes and Soil Science Perspectives (2018)
  • Author(s): Kosaki, T.
  • Organizer: Workshop “Soils, Landscape and Culture”, S. Agata Militello, Italy
  • Int'l Joint Research / Invited
• [Presentation] 南インドの畑作地におけるバイオ炭の施用が 土壌の炭素動態および作物生育へ与える影響の解明 (2018)
  • Author(s): 関真由子・杉原創・宮嵜英寿・Jegadeesan M・田中治夫
  • Organizer: 日本土壌肥料学会
• [Presentation] Ecology of protists in a rice rhizosphere (2018)
  • Author(s): Murase, J.
  • Organizer: International Workshop of Mollisols Ecology
  • Int'l Joint Research
• [Presentation] Microbial food chain driven by methane in a rice field soil (2018)
  • Author(s): Murase, J.
  • Organizer: The 8th East Asian Federation of Ecological Societies
  • Int'l Joint Research
• [Book] Soil Sciences Education: Global concepts and teaching. (2020)
  • Author(s): Kosaki, T, Lal, R. and Reyes Sanchez, L.B.
  • Total Pages: 198
  • Publisher: Schweizerbart Publ. Co. Ltd.
  • ISBN: 1593262728
• [Book] 持続可能な社会への道 (2020)
  • Author(s): 大政謙次、阿尻雅文、北川尚美、青野光子、吉田丈人、平野高司、小﨑隆、羽島知洋、真木太一、所千晴、後藤雅宏、宮崎あかね、和田元、藤岡惠子、桑野園子、谷晃、平尾雅彦、野田優、藤岡沙都子、花木啓祐、碓井照子
  • Total Pages: 263
  • Publisher: 日本学術協力財団
  • ISBN: 9784990997236
• [Book] 土壌生化学 (2019)
  • Author(s): 八島未和，犬伏和之，坂本一憲，沢田こずえ，谷昌幸，小川直人，井藤和人，境雅夫，西澤智康，遠藤銀朗，齋藤勝晴，國頭恭，唐澤敏彦，妹尾啓史，程為国
  • Total Pages: 192
  • Publisher: 朝倉書店
  • ISBN: 9784254435733
• [Book] Soil and Sustainable Development Goals (2018)
  • Author(s): Lal, R., Horn, R. and Kosaki, T.
  • Total Pages: 196
  • Publisher: Catena-Schweizerbart, Stuttgart
  • ISBN: 9783510654253