2011 Fiscal Year Final Research Report
Missing sources and missing sinks of transport phenomena in soils
| Project/Area Number |
20248025
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIYAZAKI Tsuyoshi 東京大学, 大学院・農学生命科学研究科, 教授 (00209892)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Taku 東京大学, 大学院・農学生命科学研究科, 准教授 (40237730)
IMOTO Hiromi 東京大学, 大学院・農学生命科学研究科, 技術専門員 (40419255)
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| Co-Investigator(Renkei-kenkyūsha) |
MIZOGUCHI Masaru 東京大学, 大学院・農学生命科学研究科, 教授 (00181917)
SIKI Katsutoshi 東洋大学, 経営学部, 准教授 (40313069)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 塩類集積問題 / 温室効果ガス / 地球温暖化 / 物質循環 / ミッシングソース / ミッシングシンク / プライミング効果 / 降雨浸透効果 |
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| Research Abstract |
The purpose of this research was to make clear transport phenomena of materials through vadose zones, which are still vague mainly because of the lack of knowledge in missing sinks and missing sources of them. We succeeded in obtaining new findings :(1) salt accumulations due to fluctuations of relatively shallow groundwater levels,(2) excess CO_2 emission from soils to the atmosphere due to infiltration of rain water,(3) irregular CO_2 emission from soils to the atmosphere due to the priming effects after application of organic matters,(4) unique accumulation of carbon inside the soils under forest fire events, and(5) missing sources and missing sinks in vadose zones under possible climate changes.
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[Presentation] Shallow Water Table Fluctuations in response to Added Water Events Under Semi-arid and Arid Climate Conditions2009
Author(s)
Ibrahimi, K., Miyazaki, T., Nishikawa, K., Nishimura, T., and Imoto, H.
Organizer
TJASSST 2009 Tunisia-Japan Symposium on Society, Science & Technology the 9the edition
Place of Presentation
Tunisia
Year and Date
20090000
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