Fluvial processes and vegetation — Glimpses of the past, the present, and perhaps the future

Osterkamp, W. R.; Hupp, Cliff R.

doi:10.1016/j.geomorph.2009.11.018

Cited by 163 publications

(100 citation statements)

References 162 publications

(205 reference statements)

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“…As shown elsewhere, bar morphodynamics vary markedly for differing planform types, with key differences outlined here for braided, anabranching, and meandering channels (cf., Hooke, 1986;Kleinhans, 2010;Kleinhans and van den Berg, 2010;Church and Ferguson, 2015). Bar development and stability reflect the ability of vegetation to trap sediments and stabilize banks, which in turn is directly influenced by flow energy relationships (i.e., these are mutual adjustments; Corenblit et al, 2007;Gurnell et al, 2012;Gurnell, 2014;Osterkamp and Hupp, 2010;Pietsch and Nanson, 2011). In this study, riparian vegetation and its root network are considered to restrict channel width and increase hydraulic efficiency, inducing greater bedload transport capacity in multi-thread channels (Allmendinger et al, 2005;Huang and Nanson, 2007).…”

Section: Discussionmentioning

confidence: 99%

Vegetative impacts upon bedload transport capacity and channel stability for differing alluvial planforms in the Yellow River source zone

Brierley

et al. 2016

Hydrol. Earth Syst. Sci.

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Abstract. The influence of vegetation upon bedload transport and channel morphodynamics is examined along a channel stability gradient ranging from meandering to anabranching to anabranching-braided to fully braided planform conditions along trunk and tributary reaches of the Upper Yellow River in western China. Although the regional geology and climate are relatively consistent across the study area, there is a distinct gradient in the presence and abundance of riparian vegetation for these reaches atop the QinghaiTibet Plateau (elevations in the study area range from 2800 to 3400 m a.s.l.). To date, the influence of vegetative impacts upon channel planform and bedload transport capacity of alluvial reaches of the Upper Yellow River remains unclear because of a lack of hydrological and field data. In this region, the types and pattern of riparian vegetation vary with planform type as follows: trees exert the strongest influence in the anabranching reach, the meandering reach flows through meadow vegetation, the anabranching-braided reach has a grass, herb, and sparse shrub cover, and the braided reach has no riparian vegetation. A non-linear relation between vegetative cover on the valley floor and bedload transport capacity is evident, wherein bedload transport capacity is the highest for the anabranching reach, roughly followed by the anabranching-braided, braided, and meandering reaches. The relationship between the bedload transport capacity of a reach and sediment supply from upstream exerts a significant influence upon channel stability. Bedload transport capacity during the flood season (June-September) in the braided reach is much less than the rate of sediment supply, inducing bed aggradation and dynamic channel adjustments. Rates of channel adjustment are less pronounced for the anabranching-braided and anabranching reaches, while the meandering reach is relatively stable (i.e., this is a passive meandering reach).

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Section: Discussionmentioning

confidence: 99%

Vegetative impacts upon bedload transport capacity and channel stability for differing alluvial planforms in the Yellow River source zone

Brierley

et al. 2016

Hydrol. Earth Syst. Sci.

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“…Some of these criteria are based on physical attributes, such as soil characteristics (Palik et al, 2004) or hydrology (Hupp and Osterkamp, 1996;Osterkamp and Hupp, 2010). Others are based on biota, such as vegetation (Amundsen, 2003;Mac Nally et al, 2008) or amphibians (Perkins and Hunter, 2006).…”

Section: Fernández Et Al: Quantifying the Performance Of Gis Apprmentioning

confidence: 99%

Quantifying the performance of automated GIS-based geomorphological approaches for riparian zone delineation using digital elevation models

Fernández

Barquín

Álvarez‐Cabria

et al. 2012

Hydrol. Earth Syst. Sci.

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Abstract. Riparian zone delineation is a central issue for managing rivers and adjacent areas; however, criteria used to delineate them are still under debate. The area inundated by a 50-yr flood has been indicated as an optimal hydrological descriptor for riparian areas. This detailed hydrological information is usually only available for populated areas at risk of flooding. In this work we created several floodplain surfaces by means of two different GIS-based geomorphological approaches using digital elevation models (DEMs), in an attempt to find hydrologically meaningful potential riparian zones for river networks at the river basin scale. Objective quantification of the performance of the two geomorphologic models is provided by analysing coinciding and exceeding areas with respect to the 50-yr flood surface in different river geomorphological types.

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“…Significant changes to the gradient, hydrology, or sediment load result in adjustment toward a new quasi-equilibrium condition (as in Knox, 2006;Hupp and others, 2009a;Hupp and others, 2015). Geomorphic adjustment at the reach and regional scale can trigger substantial changes to river-floodplain interactions and feedback mechanisms between geomorphic, hydrologic, and ecological processes (as with Hupp, 1992;Ligon and others, 1995;Knox, 2006;Hupp and others, 2009b;Osterkamp and Hupp, 2010).…”

Section: Introductionmentioning

confidence: 99%

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

King¹,

Keim²,

Hupp³

et al. 2016

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Fluvial processes and vegetation — Glimpses of the past, the present, and perhaps the future

Cited by 163 publications

References 162 publications

Vegetative impacts upon bedload transport capacity and channel stability for differing alluvial planforms in the Yellow River source zone

Vegetative impacts upon bedload transport capacity and channel stability for differing alluvial planforms in the Yellow River source zone

Quantifying the performance of automated GIS-based geomorphological approaches for riparian zone delineation using digital elevation models

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

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