Log transport and deposition in incised, channelized, and multithread reaches of a wide mountain river: Tracking experiment during a 20-year flood

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• 作者：Bartłomiej Wyżga^a ; ^b ; ^{wyzga@iop.krakow.pl} ; Paweł Mikuś^a ; ^b ; Joanna Zawiejska^c ; Virginia Ruiz-Villanueva^d ; Ryszard J. Kaczka^b ; Wiktoria Czech^e
• 关键词：Large wood ; Log displacement ; Radio tracking ; Hydraulic modelling
• 刊名：Geomorphology
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：279
• 期：Complete
• 页码：98-111
• 全文大小：3431 K
• 卷排序：279

文摘

Large wood dynamics during a 20-year flood in a wide mountain river was investigated with radio transmitters. Median displacement length of tagged logs in the incised and channelized reaches was 8 and 5 times greater, respectively, than in the multithread reach. Flood-peak flow conditions were modelled for the cross sections with deposited logs and without wood deposits. Hydraulic modelling allowed us to explain differences in wood behaviour between distinct channel morphologies.