| Project/Area Number |
18K11724
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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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| Review Section |
Basic Section 64040:Social-ecological systems-related
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| Research Institution | Otaru University of Commerce |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | チシマザサ / 撹乱応答 / 補償成長 / 生態系サービス / 北方林 / 山菜 / 森林 / 表現型可塑性 |
|---|
| Outline of Final Research Achievements |
For sustainable and efficient use of ecosystem services, it is necessary to investigate relationships between anthropogenic disturbances and ecosystem services scientifically and predict changes in the services after disturbance. In this study, I investigated responses of wild edible bamboo (Sasa kurilensis) to human-harvesting, and demonstrated that (1) the productivity of edible culms was enhanced after harvesting, and (2) the productivity of edible culms was determined by environmental factors (i.e., the density of bamboo culms decreased but the stem diameter increased along the gradient of increasing slope angle in the habitat), and (3) the intensity of enhanced productivity of edible culms in response to human-harvesting was also affected by the slope angle.
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| Academic Significance and Societal Importance of the Research Achievements |
生態系サービスとしての利用価値は高いにもかかわらず，山菜は資源としてあまり活かされていない．その理由は，山菜の撹乱応答を調べた研究は少なく，どのような撹乱がどのような条件で加わると山菜の生産性が向上するかについて解明されていないからである．本研究は，これまで培われてきた基礎生態学の知見やアプローチを用いて，山菜における人為的撹乱（人による収穫の影響）を科学的に調査し，収穫に応じて山菜の生産性は強化されうることを明らかにした．本研究の成果は森林に眠る山菜資源の有効な活用法を見つけだし，新たな産業基盤を生み出す契機になると期待している．
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