Artificial macropore installation in degraded soils to enhance vertical infiltration and increase organic matter.
| Project/Area Number |
26292127
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Rural environmental engineering/Planning
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| Research Institution | Okayama University |
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Principal Investigator |
MORI Yasushi 岡山大学, 環境生命科学研究科, 教授 (80252899)
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| Co-Investigator(Kenkyū-buntansha) |
金子 信博 横浜国立大学, 環境情報研究科(研究院), 教授 (30183271)
松本 真悟 島根大学, 生物資源科学部, 教授 (00346371)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 土壌物理 / 炭素固定 / 環境修復 / 浸透現象 / 劣化土壌 |
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| Outline of Final Research Achievements |
Artificial macropores were created in the degraded soils to enhance vertical infiltration. Numerical simulation of infiltration with surface flow was successfully achieved when we assume “air space” above the soil surface. Infiltration was effectively improved when fibrous materials were used, with the filling density of 30%. Column experiments showed that organic matter which was infiltrated into deeper profile has resistivity to decomposition, because of less air and water availability at this profile. Field experiment at subtropical region showed surface runoff and also sediment loss were reduced effectively with the artificial macropore application. The resultant total carbon at this field slightly increased.
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Report
(4 results)
Research Products
(38 results)
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[Journal Article] The Effects of Nitrogen Fertilizer on Soil Microbial Communities Under Conventional and Conservation Agricultural Managements in a Tropical Clay-Rich Ultisol.2016
Author(s)
Miura, T., Owada, K., Nishina, K., Utomo, M., Niswati, A., Kaneko, N., Fujie, K.
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Journal Title
Soil Science
Volume: 181
Pages: 68-74
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Shifts in the composition and potential functions of soil microbial communities responding to a no-tillage practice and bagasse mulching on a sugarcane plantation.2016
Author(s)
Miura, T., Niswati, A., Swibawa, I.G., Haryani, S., Gunito, H., Arai, M., Yamada, K., Shimano, S., Kaneko, N., Fujie, K.
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Journal Title
Biology and Fertility of Soils
Volume: 52
Pages: 307-322
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Changes in soil carbon accumulation and soil structure in the no-tillage management after conversion from conventional managements practices2014
Author(s)
Arai, M., Minamiya, Y., Tsuzura, H., Watanabe, Y., Yagioka, A., Kaneko, N
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Journal Title
Geoderma
Volume: 221-222C
Pages: 50-60
DOI
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Peer Reviewed
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[Presentation] Artificial Macropore Installation in Degraded Soils for Enhancing Infiltration to Restore Soil Environment, International Annual Meetings of ASA, CSA, and SSSA, LongBeach, US. November, 2014,2014
Author(s)
Mori, Y, Fujihara A, Yamagishi K.
Organizer
ASA,SCA,SSSA international annual meetings. 2015
Place of Presentation
Long Beach, CA, USA
Year and Date
2014-11-02 – 2014-11-05
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