| Project/Area Number |
23K20258
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| Project/Area Number (Other) |
20H02257 (2020-2023)
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Multi-year Fund (2024)
Single-year Grants (2020-2023) |
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| Section | 一般 |
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| Review Section |
Basic Section 22040:Hydroengineering-related
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| Research Institution | Nagoya University |
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Principal Investigator |
TODA YUJI 名古屋大学, 工学研究科, 教授 (60301173)
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| Co-Investigator(Kenkyū-buntansha) |
尾花 まき子 中部大学, 工学部, 准教授 (10447831)
周 月霞 名古屋大学, 工学研究科, 助教 (10974339)
椿 涼太 名古屋大学, 工学研究科, 准教授 (80432566)
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| Project Period (FY) |
2024-04-01 – 2025-03-31
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| Project Status |
Completed (Fiscal Year 2024)
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| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2024: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 河道内植生動態 / 河川地形変化 / 気候変動 / 中長期予測 |
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| Outline of Research at the Start |
気候変動の影響を考慮したうえで河道地形と植生繁茂動態を数十年の時間スケールで予測できる技術を開発する．この目的を達するため，過去から現在に至る河道地形・植生動態の中長期実態分析，近年の大規模出水後の地形・植生動態変化の実態把握，数十年スケールでの河道地形・植生動態予測モデルの開発，および開発されたモデルを用いた将来気候条件へ遷移していく中での段階的な河道地形・植生繁茂の予測を実施する。
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| Outline of Final Research Achievements |
In order to develop gradual adaptation measures to climate change in the field of river engineering, this study developed a technique to predict the dynamics of channel morphology and vegetation growth on a time scale of several decades. The Nagara River was used as the target river for the study to empirically understand the channel topography and vegetation dynamics from the past to the present. We collected ALB data on changes in riverbed topography and vegetation dynamics before and after recent floods, when the effects of climate change are becoming apparent, to understand detailed changes in vegetation removal characteristics. Based on the field survey results, a vegetation dynamics model was developed and validated. Prediction calculations were conducted for future climate change conditions, such as changes in external flood forces, to clarify the effects of climate change on the channel topography and vegetation growth areas.
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| Academic Significance and Societal Importance of the Research Achievements |
気候変動による洪水外力が増加する中，河川の洪水流下能力や河川環境に影響を与える河道地形・植生動態を中長期で予測できる技術が必要である．本研究の成果は，このような河川管理における気候変動適応策を検討するための技術開発として社会的意義と有用性の高い成果を得た．また，河川工学，河川植物生態学の学際的な研究課題に取り組んだものであり，学際研究としての学術的意義，発展性の高い成果を得ることが出来た．
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