2017 Fiscal Year Final Research Report
Underground competition of Picea mariana in central Alaska: an analysis focused on the root gaps
| Project/Area Number |
15K14752
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Forest science
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| Research Institution | Shinshu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
安江 恒 信州大学, 学術研究院農学系, 准教授 (00324236)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 個体間競争 / 根系 / クロトウヒ |
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| Outline of Final Research Achievements |
Picea mariana trees on the upland of interior Alaska were competitive below the ground, not above ground. This hypothesis was supported by three evidences. At first, roots occupied 98% of ground surface, whereas their canopy covered only 21%. Second, root system of each individual represent asymmetric shape. And third, local root length density of focused individual was negatively affected by one of competing individuals. These results suggest that P.mariana allocate much of the productions to their root system.
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| Free Research Field |
造林学
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