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Dual control of bedding structure on catchment hydrology: the interplay between direct bedding-parallel recharge and indirect landslide-driven drainage in steep accretionary complexes
http://hdl.handle.net/2241/0002024928
http://hdl.handle.net/2241/0002024928f4c800b3-1dc9-4a91-9f52-8da665948f9c
| 名前 / ファイル | ライセンス | アクション |
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Catena_271_110236.pdf (15.0 MB)
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| アイテムタイプ | 共通アイテムタイプ(1) | |||||||||||
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| 公開日 | 2026-07-08 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Dual control of bedding structure on catchment hydrology: the interplay between direct bedding-parallel recharge and indirect landslide-driven drainage in steep accretionary complexes | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
Yamakawa Yosuke
× Yamakawa Yosuke
筑波大学研究者総覧
0000003468
× Koshimizu Koji
× Uchida Taro
筑波大学研究者総覧
0000004314
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| 著者情報 | ||||||||||||
| 所属・氏名 | 生命環境系; 山川, 陽祐; ヤマカワ, ヨウスケ; Yamakawa, Yosuke | |||||||||||
| 研究者総覧URL | https://trios.tsukuba.ac.jp/researcher/3468 | |||||||||||
| 著者情報 | ||||||||||||
| 所属・氏名 | 生命環境系; 内田, 太郎; ウチダ, タロウ; Uchida, Taro | |||||||||||
| 研究者総覧URL | https://trios.tsukuba.ac.jp/researcher/4314 | |||||||||||
| 抄録 | ||||||||||||
| 内容記述 | Empirical understanding of how geological bedding structure governs catchment hydrology is limited, particularly in high-relief, landslide-prone mountains at the meso-scale (10- 1-100 km2), a range relevant to large-scale sediment disasters. This study evaluates the dual control of bedding structure-direct deep recharge and indirect shallow drainage-through multi-period snapshot observations of discharge and electrical conductivity under rainless conditions in a Japanese accretionary complex. Results suggest that the effect of the direct control of bedding structure on baseflow spatial variation is limited at this study site, characterized by geotechnical conditions where bedding dip generally exceeds topographic gradients. Under these conditions, the results are consistent with a mechanism where bedding-parallel flow serves as a dominant, spatially uniform process leading to deep infiltration regardless of the slope types (anti-dip or dip slope). Conversely, the influence of indirect control associated with landslide deformation appears to predominate in dip-slope-dominated basins. The higher temporal variability of hydrological indicators in these basins suggests a dynamic drainage mechanism -potentially a physical causal chain facilitated by landslide-driven fracture networks-that manifests under wetter conditions. Integrating these direct and indirect controls, we propose the 'structural ground system' as a novel framework that combines structural geology and hydrological variability. This approach offers a new perspective for interpreting the spatially anisotropic hydrological processes that characterize sedimentary mountain ranges, providing an interpretative framework potentially applicable to other humid, tectonically active, high-relief regions under similar geometric conditions. | |||||||||||
| キーワード | ||||||||||||
| 主題 | Bedding structure; Catchment hydrology; Landslide-driven drainage; Runoff buffering capacity; Accretionary complex; Structural ground system; High-relief | |||||||||||
| 書誌情報 |
en : Catena 巻 271, p. 110236, 発行日 2026-09 |
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| PISSN | ||||||||||||
| 収録物識別子 | 0341-8162 | |||||||||||
| EISSN | ||||||||||||
| 収録物識別子 | 1872-6887 | |||||||||||
| NCID | ||||||||||||
| 収録物識別子 | AA11523152 | |||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| ライセンス | ||||||||||||
| 権利情報 | Creative Commons Attribution 4.0 International | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | © 2026 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ ). | |||||||||||
| 出版者情報 | ||||||||||||
| 出版者名 | Elsevier | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出典 | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 関連識別子 | https://doi.org/10.1016/j.catena.2026.110236 | |||||||||||
| 謝辞・助成情報 | ||||||||||||
| 内容記述 | Japan Society for the Promotion of Science (JSPS), Grant/Award Numbers: JP19H02989, JP20H03019, JP23K26939. | |||||||||||
| 研究課題番号 | ||||||||||||
| 助成機関名 | 日本学術振興会 (JSPS) | |||||||||||
| 助成機関名 | Japan Society for the Promotion of Science (JSPS) | |||||||||||
| 研究課題番号 | 19H02989 | |||||||||||
| 研究課題番号URI | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H02989/ | |||||||||||
| 研究課題名 | 地形発達学的手法と種々のセンシング技術を応用した深層崩壊発生危険度評価手法の開発 | |||||||||||
| 研究課題名 | Development of a method for evaluating the risk of deep-seated landslides using geomorphological techniques and various sensing technologies | |||||||||||
| 研究課題番号 | ||||||||||||
| 助成機関名 | 日本学術振興会 (JSPS) | |||||||||||
| 助成機関名 | Japan Society for the Promotion of Science (JSPS) | |||||||||||
| 研究課題番号 | 20H03019 | |||||||||||
| 研究課題番号URI | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H03019/ | |||||||||||
| 研究課題名 | 気候変動により増大する災害リスク定量化のための洪水・土砂流出量予測手法の提案 | |||||||||||
| 研究課題名 | Proposal of flood and sediment discharge predicting method to quantify disaster risk increased by climate change | |||||||||||
| 研究課題番号 | ||||||||||||
| 助成機関名 | 日本学術振興会 (JSPS) | |||||||||||
| 助成機関名 | Japan Society for the Promotion of Science (JSPS) | |||||||||||
| 研究課題番号 | 23K26939 | |||||||||||
| 研究課題番号URI | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K26939/ | |||||||||||
| 研究課題名 | 付加体堆積岩山地における水文・地盤情報カップリングによる雨水貯留・排水特性の把握 | |||||||||||
