Agro-ecological study to realize "Green Revolution" in the semiarid Tropics of Africa
Project/Area Number |
22405020
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 海外学術 |
Research Field |
Plant nutrition/Soil science
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Research Institution | Kyoto University |
Principal Investigator |
SHINJO Hitoshi 京都大学, 地球環境学堂, 准教授 (70359826)
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Co-Investigator(Kenkyū-buntansha) |
TANAKA Ueru 総合地球環境学研究所, 研究部, 准教授 (10231408)
IKAZAKI Kenta 首都大学東京, 都市環境科学研究科, 助教 (70582021)
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Co-Investigator(Renkei-kenkyūsha) |
TOBITA Satoshi 国際農林水産業研究センター, 生産環境領域, 主任研究員(当時) (30450266)
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Project Period (FY) |
2010-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
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Keywords | サヘル / 緑の革命 / 耕地生態系 / トウジンビエ / 耕地内休閑 / 砂漠化 / ニジェール:ナミビア / ニジェール / 土壌肥沃度 / 耕地内休閑システム |
Research Abstract |
In semiarid area extending in the southern periphery of the Sahara Desert with the annual precipitation of about 400-800 mm, serious environmental degradation due to poverty known as desertification prevails. In this research, we evaluated soil management practices that can combat desertification from the viewpoint of not only productivity but sustainability based on nutrient budget. We found that chemical fertilizer application could increase the productivity as well as alleviate impact of drought. However, in the conventional practice that removes crop residues from a field for animal feed or building materials, a little fertilization may even accelerate nutrient mining of soils. Thus, even in the case of fertilization, crop residue management plays a key role in sustainability of soils.
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Report
(5 results)
Research Products
(57 results)
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[Journal Article] Rewetting of Dry Soil did not Stimulate the Carbon and Nitrogen Mineralization in Croplands with Plant Residue Removed in the Sahel, West Africa2014
Author(s)
Sugihara, S., Funakawa, S., Ikazaki, K., Shinjo, H., and Kosaki, T.
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Journal Title
Tropical Agriculture and Development
Volume: 58
Pages: 8-17
NAID
Related Report
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[Journal Article] Rewetting of Dry Soil did not Stimulate the Carbon and Nitrogen Mineralization in Croplands with Plant Residue Removed in the Sahel, West Africa.2014
Author(s)
Sugihara, S., Funakawa, S., Ikazaki, K., Shinjo, H., and Kosaki, T.
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Journal Title
Tropical Agriculture and Development
Volume: 58
Pages: 8-17
NAID
Related Report
Peer Reviewed
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[Journal Article] Estimation of nitrogen flow within a village-farm model in Fakara region in Niger, Sahelian zone of West Africa2012
Author(s)
Hayashi, K., Matsumoto, N., Hayashi, E.T., Abdoulaye, T., Shinjo, H., Tabo, R., Matsunaga, R., and Tobita, S.
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Journal Title
Nutrient Cycling in Agroecosystem
Volume: 92
Issue: 3
Pages: 289-304
DOI
Related Report
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[Journal Article] Validation of soil organic carbon dynamics model in the semi-arid tropics in Niger, West Africa2011
Author(s)
Nakamura, S., Hayashi, K., Omae, H., Ramadjita, T., Dougbedji, F., Shinjo, H., Saidou, A. K., and Tobita, S.
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Journal Title
Nutrient Cycling in Agroecosystems
Volume: 89
Issue: 3
Pages: 375-385
DOI
Related Report
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[Journal Article] Aeolian materials sampler for measuring surface flux of soil nitrogen and carbon during wind erosion events in the Sahel, West Africa2011
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., and Kosaki, T.
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Journal Title
Transactions of the ASABE
Volume: 54(3)
Pages: 983-990
Related Report
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[Journal Article] Field-scale aeolian sediment transport in the Sahel, West Africa2011
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
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Journal Title
Soil Science Society of America Journal
Volume: 75
Issue: 5
Pages: 1885-1897
DOI
Related Report
Peer Reviewed
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[Journal Article] "Fallow Band System," a land management practice for controlling desertification and improving crop production in the Sahel, West Africa. 1. Effectiveness in desertification control and soil fertility improvement2011
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., and Kosaki, T.
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Journal Title
Soil Science and Plant Nutrition
Volume: 57(4)
Pages: 573-586
NAID
Related Report
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[Journal Article] Aeolian materials sampler for measuring surface flux of soil nitrogen and carbon during wind erosion events in the Sahel, West Africa2011
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
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Journal Title
Transactions of the ASABE
Volume: 54
Pages: 983-990
Related Report
Peer Reviewed
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[Journal Article] Fallow Band System," a land management practice for controlling desertification and improving crop production in the Sahel, West Africa. 1.Effectiveness in desertification control and soil fertility improvement2011
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
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Journal Title
Soil Science and Plant Nutrition
Volume: 57
Issue: 4
Pages: 573-586
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Performance of an aeolian materials sampler for the determination of amount of coarse organic matter transported during wind erosion events in the Sahel, West Africa.2010
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
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Journal Title
ペドロジスト
Volume: 53
Pages: 126-134
Related Report
Peer Reviewed
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[Journal Article] Validation of soil organic carbon dynamics model in the semi-arid tropics in Niger, West Africa.2010
Author(s)
Nakamura, S., Hayashi, K., Omae, H., Ramadjita, T., Dougbedji, F., Shinjo, H., Saidou, A.K., Tobita, S.
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Journal Title
Nutrient Cycling in Agroecosystems
Volume: DOI番号のみ
Related Report
Peer Reviewed
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[Presentation] Sustainable and efficient land management practices in the Sahel2014
Author(s)
Shinjo, H., Ikazaki, K., Imanaka, S., Tanaka, U., Hayashi, K., Tobita, S. and Kosaki, T.
Place of Presentation
Jeju Korea (Poster Presentation)
Related Report
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[Presentation] In situ short-term dynamics of CO2 flux and microbial biomass after simulated rainfall in dry croplands under the different climate and soil texture2013
Author(s)
Sugihara, S, Funakawa, S., Shinjo, H., Kadono, A., Takata, Y., Sawada, K., Ikazaki, K., Fujii, K., & Kosaki, T.
Organizer
IUSS Global Soil Carbon Workshop
Place of Presentation
Wisconsin, USA.
Related Report
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[Presentation] "Fallow Band System", a do-nothing practice for controlling wind erosion and improving soil fertility in the Sahel, West Africa2013
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
Organizer
Conference on Desertification and Land Degradation
Place of Presentation
University of Ghent, Belgium
Related Report
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[Presentation] In situ short-term dynamics of CO2 flux and microbial biomass after simulated rainfall in dry croplands under the different climate and soil texture2013
Author(s)
Sugihara, S, Funakawa, S., Shinjo, H., Kadono, A., Takata, Y., Sawada, K., Ikazaki, K., Fujii, K., & Kosaki, T.
Organizer
IUSS Global Soil Carbon Workshop
Place of Presentation
Wisconsin
Related Report
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[Presentation] "Fallow Band System", a do-nothing practice for controlling wind erosion and improving soil fertility in the Sahel, West Africa2013
Author(s)
Ikazaki, K., Shinjo, H., Tanaka, U., Tobita, S., Funakawa, S., Kosaki, T.
Organizer
Conference on Desertification and Land Degradation
Place of Presentation
ゲント大学(ベルギー)
Related Report
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