| DOI: | 10.1002/2014GL060155
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| 论文题名: | Vegetation-driven morphodynamic adjustments of a sand bed |
| 作者: | Le Bouteiller C.; Venditti J.G.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10570
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| EISSN: | 1944-10301
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| 出版年: | 2014
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| 卷: | 41, 期:11 | | 起始页码: | 3876
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| 结束页码: | 3883
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| 语种: | 英语
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| 英文关键词: | biogeomorphology
; ecohydrology
; morphodynamics
; sediment transport
; vegetation
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| Scopus关键词: | Sediment transport
; Sedimentation
; Shear stress
; Adjustment time
; Biogeomorphology
; Coastal environments
; Eco-hydrology
; Morphodynamic response
; Morphodynamics
; Sediment transport capacity
; Vegetation patches
; Vegetation
; coastal zone
; morphodynamics
; sand
; sediment transport
; shear stress
; slope stability
; vegetation structure
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| 英文摘要: | Vegetation is ubiquitous in riverine and coastal environments, but the physics governing morphodynamic interactions modulated by vegetation are still poorly understood. Here we use a simple experiment to study the impact of a vegetated patch on the morphodynamics of a sand bed. We show that the vegetation patch reduces the sediment transport capacity of the flow and that the topography responds to this by an increase of the bed slope to accommodate the upstream sediment supply. Final bed slope and adjustment time scale depend on the ratio between the grain-related shear stress and the total shear stress. This demonstrates the mechanisms underlying a direct morphodynamic response to the presence of a vegetation patch. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901736221&doi=10.1002%2f2014GL060155&partnerID=40&md5=153c8818c0a009a86f10e02f0d3bbb09
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7834
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Geography, Simon Fraser University, Burnaby, BC, Canada
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| Recommended Citation: | |
Le Bouteiller C.,Venditti J.G.. Vegetation-driven morphodynamic adjustments of a sand bed[J]. Geophysical Research Letters,2014-01-01,41(11).
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