| Project/Area Number |
21870005
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | Tohoku University |
|---|
Principal Investigator |
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| Research Collaborator |
SUYAMA Yoshihisa 東北大学, 大学院・農学研究科, 准教授 (60282315)
NAKANO Kazunori 東北大学, 大学院・工学研究科, 准教授 (30292519)
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| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,756,000 (Direct Cost: ¥2,120,000、Indirect Cost: ¥636,000)
Fiscal Year 2010: ¥1,313,000 (Direct Cost: ¥1,010,000、Indirect Cost: ¥303,000)
Fiscal Year 2009: ¥1,443,000 (Direct Cost: ¥1,110,000、Indirect Cost: ¥333,000)
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| Keywords | 植物 / 遺伝的多様性 / 無機態窒素 / ヨシ(アシ) / 人工湿地 / ヨシ |
|---|
| Research Abstract |
Biodiversity loss has important consequences for a variety of ecosystem processes. We manipulated genotypic richness of the common reed, Phragmites austraslis, in a small-scale experimental system similar to constructed wetlands. Genotypic richness increased plant primary productivity, and this effect was largely explained by niche complementarity among genotypes. Nitrogen loss decreased as genotypic richness increased. Given that water purification through nitrogen removal is achieved by plants and microorganisms around the plant root zone, these results suggest that genetic diversity enhanced water purification possibly by both increased plant productivity and bacterial activity.
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