Research Projects

Apr, 2014 - Mar, 2017

Artificial macropore installation in degraded soils to enhance vertical infiltration and increase organic matter.

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

Grant number
26292127
Japan Grant Number (JGN)
JP26292127
Grant amount
(Total)
15,990,000 Japanese Yen
(Direct funding)
12,300,000 Japanese Yen
(Indirect funding)
3,690,000 Japanese Yen

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.

Link information
URL
https://kaken.nii.ac.jp/file/KAKENHI-PROJECT-26292127/26292127seika.pdf
KAKEN
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26292127
ID information
  • Grant number : 26292127
  • Japan Grant Number (JGN) : JP26292127

List of results of the research project

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Presentations

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