2018 Fiscal Year Final Research Report
Contributions of soil animals to organic matter flow from plants to soils on forests
| Project/Area Number |
16K18720
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Forest science
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| Research Institution | Kagawa University |
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Principal Investigator |
Toyota Ayu 香川大学, 農学部, 助教 (50730800)
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| Research Collaborator |
ISHIZAKI Narumi
MATSUMOTO Yui
SUENAGA Yuriko
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | 土壌動物 / 土壌炭素 / 落葉分解 |
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| Outline of Final Research Achievements |
Soil animals have key functions to link between above- and belowground ecosystems in detritus food web. This study focused on the function of organic matter retention in deeper soil layer by soil animals. From microcosm experiments, I found two results. First, earthworms conserved organic matter in not only surface but also deeper soil layer. Second, the amounts of phosphorus in soils were increased by the train millipede at adult stage on larch forest floor.
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| Free Research Field |
土壌生態系における土壌動物の機能
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| Academic Significance and Societal Importance of the Research Achievements |
温帯林の土壌は巨大な炭素の貯蔵庫として機能し、その炭素動態は地球全体の炭素循環に影響を及ぼす。IPCC第4次評価報告書では2030年までの短・中期的な対策として土壌の炭素固定促進が挙げられている。温暖化緩和策として適切な土壌管理による炭素貯留能の向上が期待される中、さまざまな土壌において土壌動物が土壌有機物に及ぼす影響を明らかにした本研究の成果は、持続的な生産が可能な土壌の管理、保全のための対策を展開する一助となることが期待される。
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