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九州北部の山地河川に堆積する倒・流木と土砂
http://hdl.handle.net/2298/37261
http://hdl.handle.net/2298/37261816dc1f8-32c2-480c-bfe5-511c79d40e16
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JJSECE52(1)_21-27.pdf (9.9 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-06-08 | |||||
| タイトル | ||||||
| タイトル | 九州北部の山地河川に堆積する倒・流木と土砂 | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題 | woody debris, sediment, storage, channel morphology, principal component analysis | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
宮縁, 育夫
× 宮縁, 育夫× 清水, 晃× 小川, 泰浩 |
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| 別言語の著者 |
宮縁, 育夫
× 宮縁, 育夫× 清水, 晃× 小川, 泰浩 |
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| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Distribution of woody debris and sediment was examined in a mountain stream, northern Kyushu, southwestern Japan. A densely-welded pyroclastic flow deposit dominates the study basin, and forms steep sideslopes and a flat valley floor. The watershed was disturbed by a powerful typhoon in 1991, which leveled many trees on the hillslopes. Subsequent storm-triggered shallow slope failures deposited timber along streambeds. Channel morphology (gradient, channel width and sinuosity), location and volume of woody debris, and streambed sediment characteristics were investigated three and half years after the typhoon. Log jams of various sizes occurred in the channel ; the largest log jam was 100m long, had a volume of 3, 100m3, and was located along the middle reach of the research section. Principal component analysis of channel morphology and volume of woody debris and sediment suggests that sediment deposition is controlled by tractive force decrease owing to broad channel width and gentle gradient. The analysis demonstrates that there is no conspicuous relationship between volume of woody debris and geomorphic factors such as gradient and sinuosity. Field observations reveal that most log jams occur behind large boulders in the research section. Our results indicate that accumulation of woody debris is influenced more by topographic barriers such as large boulders than by channel morphology. We believe that the supply of boulders from sideslopes greatly influences the storage of woody debris in the investigated stream. | |||||
| 書誌情報 |
砂防学会誌 巻 52, 号 1, p. 21-27, 発行年 1999 |
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| ISSN | ||||||
| 収録物識別子 | 02868385 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN1056478X | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 関連識別子 | http://doi.org/10.11475/sabo1973.52.21 | |||||
| 権利 | ||||||
| 権利情報 | © 社団法人砂防学会 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 値 | 9902915 bytes | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 455.89 | |||||
| その他の言語のタイトル | ||||||
| その他のタイトル | Storage of Woody Debris and Sediment in a Mountain Stream, Northern Kyushu, Southwestern Japan | |||||
| タイトル（ヨミ） | ||||||
| その他のタイトル | キュウシュウ ホクブ ノ サンチ カセン ニ タイセキ スル トウ リュウボク ト ドシャ | |||||
| 出版者 | ||||||
| 出版者 | 社団法人砂防学会 | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 値 | 雑誌掲載論文 | |||||
| 資源タイプ・NII | ||||||
| 値 | Journal Article | |||||
| 資源タイプ・DCMI | ||||||
| 値 | text | |||||
| 資源タイプ・ローカル表示コード | ||||||
| 値 | 01 | |||||
| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | https://www.jstage.jst.go.jp/article/sabo1973/52/1/52_1_21/_article/-char/ja/ | |||||
