From deposition to erosion: Spatial and temporal variability of sediment sources, storage, and transport in a small agricultural watershed

Florsheim, Joan L.; Pellerin, Brian A.; Oh, Neung‐Hwan; Ohara, N.; Bachand, Philip A.M.; Bachand, Sandra M.; Bergamaschi, Brian A.; Hernes, Peter J.; Kavvas, M. L.

doi:10.1016/j.geomorph.2011.04.037

Cited by 45 publications

(26 citation statements)

References 51 publications

(48 reference statements)

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“…The abrupt New World transformations, were in some cases associated with mills and dams (Walter and Merritts, 2008), or large changes in sediment supply (Happ et al, 1940;Trimble, 1981). These changes occurred in all climatic zones including the semi-arid zone, where anastomosing systems were transformed in under 200 years Mount 2003: Florsheim et al, 2008) with implications for flood hazard (Florsheim et al (2011).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Natural vs anthropogenic streams in Europe: History, ecology and implications for restoration, river-rewilding and riverine ecosystem services

Brown

Lespez

Sear

et al. 2018

Earth-Science Reviews

198

152

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Section: Accepted Manuscriptmentioning

confidence: 99%

Natural vs anthropogenic streams in Europe: History, ecology and implications for restoration, river-rewilding and riverine ecosystem services

Brown

Lespez

Sear

et al. 2018

Earth-Science Reviews

198

152

View full text Add to dashboard Cite

“…Diversions of water from other drainages in the absence of a dam (e.g., for agricultural purposes) can also substantially increase discharge and thus sediment transport capacity within a river (Gregory, 2006;Snyder and Kammer, 2008;David et al, 2009;Florsheim et al, 2011). Like dams, diversions have a very long history: the 1780-km-long Beijing-Hangzhou Canal, for example, diverted water from the Changjiang (Yangtze) to the North China Plain by the end of the 13th century (Li et al, 2000).…”

Section: Increased River Transport Capacitymentioning

confidence: 99%

Legacy effects on sediments in river corridors

Wohl

2015

Earth-Science Reviews

156

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“…The installation of surface and sub-surface drains can also alter natural flow pathways (Ibrahim et al, 2013). Drainage installation and maintenance, for example, can result in faster quick-flow, resulting in an increased likelihood of more frequent, higher magnitude and short duration sediment transfers associated with storm runoff (Wiskow and van der Ploeg, 2003;Deasy et al, 2009;Florsheim et al, 2011).…”

Section: S C Sherriff Et Al: Suspended Sediment Dynamics In Agricumentioning

confidence: 99%

Investigating suspended sediment dynamics in contrasting agricultural catchments using ex situ turbidity-based suspended sediment monitoring

Sherriff

Rowan

Melland

et al. 2015

Hydrol. Earth Syst. Sci.

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Abstract. Soil erosion and suspended sediment (SS) pose risks to chemical and ecological water quality. Agricultural activities may accelerate erosional fluxes from bare, poached or compacted soils, and enhance connectivity through modified channels and artificial drainage networks. Storm-event fluxes dominate SS transport in agricultural catchments; therefore, high temporal-resolution monitoring approaches are required, but can be expensive and technically challenging. Here, the performance of in situ turbidity sensors, conventionally installed submerged at the river bankside, is compared with installations where river water is delivered to sensors ex situ, i.e. within instrument kiosks on the riverbank, at two experimental catchments (Grassland B and Arable B). The in situ and ex situ installations gave comparable results when calibrated against storm-period, depth-integrated SS data, with total loads at Grassland B estimated at 12 800 and 15 400 t, and 22 600 and 24 900 t at Arable B, respectively. The absence of spurious turbidity readings relating to bankside debris around the in situ sensor and its greater security make the ex situ sensor more robust. The ex situ approach was then used to characterise SS dynamics and fluxes in five intensively managed agricultural catchments in Ireland which feature a range of landscape characteristics and land use pressures. Average annual suspended sediment concentration (SSC) was below the Freshwater Fish Directive (78/659/EEC) guideline of 25 mg L −1 , and the continuous hourly record demonstrated that exceedance occurred less than 12 % of the observation year. Soil drainage class and proportion of arable land were key controls determining flux rates, but all catchments reported a high degree of inter-annual variability associated with variable precipitation patterns compared to the long-term average. Poorly drained soils had greater sensitivity to runoff and soil erosion, particularly in catchments with periods of bare soils. Well drained soils were less sensitive to erosion even on arable land; however, under extreme rainfall conditions, all bare soils remain a high sediment loss risk. Analysis of storm-period and seasonal dynamics (over the long term) using high-resolution monitoring would be beneficial to further explore the impact of landscape, climate and land use characteristics on SS export.

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From deposition to erosion: Spatial and temporal variability of sediment sources, storage, and transport in a small agricultural watershed

Cited by 45 publications

References 51 publications

Natural vs anthropogenic streams in Europe: History, ecology and implications for restoration, river-rewilding and riverine ecosystem services

Natural vs anthropogenic streams in Europe: History, ecology and implications for restoration, river-rewilding and riverine ecosystem services

Legacy effects on sediments in river corridors

Investigating suspended sediment dynamics in contrasting agricultural catchments using ex situ turbidity-based suspended sediment monitoring

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