Results 21 to 30 of about 1,377 (163)

Spatial variability in the hyporheic zone refugium of temporary streams [PDF]

, 2011
A key ecological role hypothesized for the hyporheic zone is as a refugium that promotes survival of benthic invertebrates during adverse conditions in the surface stream.
Wood, PJ, Rachel Stubbington, Reid, I, Paul J. Wood, Ian Reid, Stubbington, R   +5 more
core   +1 more source

Faunal response to benthic and hyporheic sedimentation varies with direction of vertical hydrological exchange [PDF]

, 2014
1. Sedimentation and clogging of benthic and hyporheic zone substrates is increasingly being recognised as one of the greatest threats to the ecological integrity of riverine ecosystems globally. This ex-situ study examined the influence of sedimentation
Wood, PJ, Rachel Stubbington (3207786), Stubbington, Rachel, Paul J. Wood (3207795), Jonathan Millett (3248628), Stubbington, R, Millett, Jonathan, Robertson, AL, Wood, Paul J., Mathers, KL, Mathers, Kate L., Millett, J, Anne L. Robertson (2923461), Kate L. Mathers (7190357), Robertson, Anne; id_orcid   +14 more
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How daily groundwater table drawdown affects the diel rhythm of hyporheic exchange [PDF]

, 2021
Groundwater table dynamics extensively modify the volume of the hyporheic zone and the rate of hyporheic exchange processes. Understanding the effects of daily groundwater table fluctuations on the tightly coupled flow and heat transport within hyporheic
Krause, Stefan; id_orcid, Lewandowski, Joerg,, Gomez-Velez, Jesus, Krause, Stefan, Wörman, Anders,, Wörman, Anders, Wu, Liwen, Krause, Stefan,, Lewandowski, Jörg, Singh, Tanu, Gomez-Velez, Jesus D., Gomez-Velez, Jesus D.,, Singh, Tanu,, Nuetzmann, Gunnar,, Nützmann, Gunnar, Wu, Liwen,   +15 more
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Longitudinal transformation of nitrogen and carbon in the hyporheic zone of an N-rich stream: A combined modelling and field study [PDF]

, 2011
A combined modelling and field study approach was used to examine biogeochemical functioning of the hyporheic zone in two gravel bars in an N-rich fourth-order stream (River Hers, south-west France).
Vervier, P., Namour, Philippe, Miguel Sánchez-Pérez, José, Peyrard, Dimitri, Sánchez-Pérez, J.M., M. Gerino, J.M. Sanchez-Perez, Delmotte, Sébastien, Sanchez-Pérez, José Miguel, Simeoni-Sauvage, Sabine, Sauvage, S., Vervier, Philippe, D. Peyrard, P. Vervier, Delmotte, S., Gerino, M., Gérino, Magali, S. Delmotte, Sauvage, Sabine, Ph. Namour, S. Sauvage   +20 more
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Influence of the hyporheic zone on the phosphorus dynamics of a large gravel-bed river, Garonne River, France [PDF]

, 2009
Phosphorus (P) concentrations in sediments and in surface and interstitial water from three gravel bars in a large river (Garonne River, southern France) were measured daily, downstream of a wastewater treatment plant for a city of 740 000 inhabitants ...
Simeoni-Sauvage, Sabine, José-Miguel Sanchez-Perez, Vervier, Philippe, Valett, H. Maurice, Sonia Bonvallet-Garay, Sánchez-Pérez, J.M., Bonvallet-Garay, Sonia, Philippe Vervier, Sanchez-Pérez, José Miguel, Sabine Sauvage, H. Maurice Valett   +10 more
core   +1 more source

Hyporheic exchange due to channel‐spanning logs [PDF]

Water Resources Research, 2011
The flow of river water around large woody debris (LWD) creates pressure gradients along the riverbed that drive a large zone of river‐groundwater mixing, or hyporheic exchange. Flume experiments and numerical simulations show that river water downwells into the riverbed upstream of a channel‐spanning log and upwells downstream.
Audrey H. Sawyer, M. Bayani Cardenas, Jim Buttles   +2 more
openaire   +1 more source

Breakthrough curve moments scaling in hyporheic exchange [PDF]

Water Resources Research, 2015
AbstractThe interaction between stream flow and bed forms creates an uneven distribution of near‐bed energy heads, which is the driving force of hyporheic exchange. Owing to the large disparity of advection characteristic times in the stream and within the hyporheic zone, solute mass exchange is often modeled by considering the latter as an immobile ...
Bellin, Alberto, Tonina, D., Marzadri, Alessandra   +2 more
openaire   +2 more sources

The Sensitivity of Hyporheic Exchange to Fractal Properties of Riverbeds

Water Resources Research, 2020
AbstractHyporheic exchange in riverbeds is driven by current‐bed topography interactions. Because riverbeds exhibit topographic roughness across scales, from individual grains to bedforms and bars, they can exhibit fractal patterns. This study analyzed the influence of fractal properties of riverbed topography on hyporheic exchange.
Anzy Lee, Antoine F. Aubeneau, M. Bayani Cardenas   +2 more
openaire   +2 more sources

The hyporheic zone as an invertebrate refuge: a review of variability in space, time, taxa and behaviour [PDF]

, 2012
The hyporheic zone is a potential refuge that can promote persistence of benthic invertebrates during adverse conditions in surface streams. For decades, changes in invertebrate depth distribution have been investigated in relation to flood, low flow and
Rachel Stubbington, Stubbington, R
core   +1 more source

Benthic and hyporheic invertebrate community responses to seasonal flow recession in a groundwater-dominated stream

, 2010
Natural hydrological variability in lotic ecosystems can include prolonged periods of flow recession. A reduction in discharge is accompanied by abiotic changes in benthic and hyporheic habitats, often including reductions in s habitat availability ...
Wood, PJ, Rachel Stubbington, Reid, I, Paul J. Wood, Ian Reid, Gunn, J, Stubbington, R, John Gunn   +7 more
core   +1 more source