2014 Fiscal Year Final Research Report
The effects of weeding on the survival and height growth of Zelkova serrata naturally regenerated saplings
| Project/Area Number |
24580210
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | ケヤキ / 生残 / 樹高成長 / 雑草木 / 刈り払い |
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| Outline of Final Research Achievements |
In this study, the hypothesis that spot weeding is more effective than whole weeding for the survival and height growth of Zelkova serrata saplings, was tested. Four years of survival rate of Zelkova serrata saplings did not differ among whole weeding, spot weeding and non-weeding sites under the within-stand light intensity of 30%. The height increment of Zelkova serrata saplings did not differ between spot weeding and non-weeding sites. The height increment of Zelkova serrata saplings was positively correlated with initial tree height, and there was no difference in the distribution range of scatter plots in relation to weeding types. From these results, it appears that the difference in survival and height growth of Zelkova serrata saplings between whole weeding and spot weeding sites is not observed.
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| Free Research Field |
森林科学（森林施業・計画学）
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