Investigating raindrop effects on transport of sediment and non-sorbed chemicals from soil to surface runoff

Gao, Bin; Walter, M. Todd; Steenhuis, Tammo S.; Parlange, Jean‐Yves; Richards, Brian K.; Hogarth, W. L.; Rose, C. W.

doi:10.1016/j.jhydrol.2004.11.007

Cited by 88 publications

(97 citation statements)

References 24 publications

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“…[79] From 2004 to 2007, Parlange and colleagues produced an influential body of work (currently at more than 80 ISI citations) that, for the first time, integrated raindropdriven transport of solutes from the mixing layer into surface runoff, diffusion-driven transport from deeper soil layers into the mixing layer, and infiltration [Gao et al, 2004[Gao et al, , 2005Walter et al, 2007]. These processes were assumed to act in series and produced a superior fit to experimental data with no need for additional adjustable parameters.…”

Section: Transfer Of Solutes From the Soil To Overland Flowmentioning

confidence: 99%

“…[84] The model predictions were tested against experiments with [Ahuja and Lehman, 1983] and without [Gao et al, 2004[Gao et al, , 2005 infiltration, in both cases with good agreement. The former demonstrated that infiltration reduced the depth of the exchange layer, while the latter suggested that the assumption of a well-mixed exchange layer may not be realistic, especially in the early stages on rainfall when solute concentration in ejected soil water is near the initial condition value.…”

Section: Transfer Of Solutes From the Soil To Overland Flowmentioning

confidence: 99%

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Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

et al. 2013

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[1] We explore selected aspects of J.-Y. Parlange's contributions to hydrological transport of solutes and sediments, including both the laboratory and field scales. At the laboratory scale, he provided numerous approximations for solute transport accounting for effects of boundary conditions, linear and nonlinear reactions, and means to determine relevant parameters. Theory was extended to the field scale with, on the one hand, the effect of varying surface boundary conditions and, on the other, effects of soil structure heterogeneity. Soil erosion modeling, focusing on the Hairsine-Rose model, was considered in several papers. His main results, which provide highly usable approximations for grain-size class dependent sediment transport and deposition, are described. The connection between solute in the soil and that in overland flow was also investigated by Parlange. His theory on exchange of solutes between these two compartments, and subsequent movement, is presented. Both deterministic and stochastic approaches were considered, with application to microbial transport. Beyond contaminant transport, Parlange's fundamental contributions to the movement of solutes in hypersaline natural environments provided accurate predictions of vapor and liquid movement in desert, agricultural, and anthropogenic fresh-saline interfaces in porous media, providing the foundation for this area of research.

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Section: Transfer Of Solutes From the Soil To Overland Flowmentioning

confidence: 99%

Section: Transfer Of Solutes From the Soil To Overland Flowmentioning

confidence: 99%

Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

et al. 2013

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“…The biogeochemical distinction between overland flow and shallow subsurface storm flow can become blurred as a result of exfiltration of return flow , emergence of pipe-flow on upland soils (Elsenbeer and Vertessy 2000), and even the ejection of soil solutes due to raindrop impact (Gao et al 2005). However, surficial and near-surface flowpaths strongly contrast biogeochemically with hydrologic flowpaths that interact with deeper soil horizons as a result of adsorption and mineralization of organic nutrients (Qualls et al 2002).…”

Section: Introductionmentioning

confidence: 99%

DOC and DIC in Flowpaths of Amazonian Headwater Catchments with Hydrologically Contrasting Soils

et al. 2006

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Organic and inorganic carbon (C) fluxes transported by water were evaluated for dominant hydrologic flowpaths on two adjacent headwater catchments in the Brazilian Amazon with distinct soils and hydrologic responses from September 2003 through April 2005. The Ultisoldominated catchment produced 30% greater volume of storm-related quickflow (overland flow and shallow subsurface flow) compared to the Oxisol-dominated catchment. Quickflow fluxes were equivalent to 3.2 ± 0.2% of event precipitation for the Ultisol catchment, compared to 2.5 ± 0.3% for the Oxisol-dominated watershed (mean response ±1 SE, n = 27 storms for each watershed). Hydrologic responses were also faster on the Ultisol watershed, with time to peak flow occurring 10 min earlier on average as compared to the runoff response on the Oxisol watershed.These different hydrologic responses are attributed primarily to large differences in saturated hydraulic conductivity (K s ). Overland flow was found to be an important feature on both watersheds. This was evidenced by the response rates of overland flow detectors (OFDs) during the rainy season, with overland flow intercepted by 54 ± 0.5% and 65 ± 0.5% of OFDs for the Oxisol and Ultisol watersheds respectively during biweekly periods. Small volumes of quickflow correspond to large fluxes of dissolved organic C (DOC); DOC concentrations of the hydrologic flowpaths that comprise quickflow are an order of magnitude higher than groundwater flowpaths fueling base flow (19.6 ± 1.7 mg l -1 DOC for overland flow and 8.8 ± 0.7 mg l -1 DOC for shallow subsurface flow versus 0.50 ± 0.04,mg l -1 DOC in emergent groundwater). Concentrations of dissolved inorganic C (DIC, as dissolved CO 2 -C plus HCO 3 --C) in groundwater were found to be an order of magnitude greater than quickflow DIC concentrations (21.5 mg l -1 DIC in emergent groundwater versus 1.1 mg l -1 DIC in overland flow). The importance of deeper flowpaths in the transport of inorganic C to streams is indicated by the 40:1 ratio of DIC:DOC for emergent groundwater. Dissolved CO 2 -C represented 92% of DIC in emergent groundwater. Results from this study illustrate a highly dynamic and tightly coupled linkage between the C cycle and the hydrologic cycle for both Ultisol and Oxisol

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“…1 ). This soil mixture is similar to that used by Gao et al (2004Gao et al ( , 2005 with the exception of a slightly larger sand particle size used in this experiment (250-300 μm versus 198-212 μm).…”

Section: Experimental Designmentioning

confidence: 86%

Modeling the release of Escherichia coli from soil into overland flow under raindrop impact

Wang

Parlange

Rasmussen

et al. 2017

Advances in Water Resources

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a b s t r a c tPathogen transport through the environment is complicated, involving a variety of physical, chemical, and biological processes. This study considered the transfer of microorganisms from soil into overland flow under rain-splash conditions. Although microorganisms are colloidal particles, they are commonly quantified as colony-forming units (CFUs) per volume rather than as a mass or number of particles per volume, which poses a modeling challenge. However, for very small particles that essentially remain suspended after being ejected into ponded water and for which diffusion can be neglected, the Gao model, originally derived for solute transfer from soil, describes particle transfer into suspension and is identical to the Hairsine-Rose particle erosion model for this special application. Small-scale rainfall experiments were conducted in which an Escherichia coli ( E. coli ) suspension was mixed with a simple soil (9:1 sand-toclay mass ratio). The model fit the experimental E. coli data. Although re-conceptualizing the Gao solute model as a particle suspension model was convenient for accommodating the unfortunate units of CFU ml −1 , the Hairsine-Rose model is insensitive to assumptions about E. coli per CFU as long as the assumed initial mass concentration of E. coli is very small compared to that of the soil particle classes. Although they undoubtedly actively interact with their environment, this study shows that transport of microorganisms from soil into overland storm flows can be reasonably modeled using the same principles that have been applied to small mineral particles in previous studies.

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Investigating raindrop effects on transport of sediment and non-sorbed chemicals from soil to surface runoff

Cited by 88 publications

References 24 publications

Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

DOC and DIC in Flowpaths of Amazonian Headwater Catchments with Hydrologically Contrasting Soils

Modeling the release of Escherichia coli from soil into overland flow under raindrop impact

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