Hydrology of a first-order riparian zone and stream, mid-Atlantic coastal plain, Maryland

Angier, J. T.; McCarty, Gregory W.; Prestegaard, K. L.

doi:10.1016/j.jhydrol.2004.11.017

Cited by 48 publications

(50 citation statements)

References 32 publications

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“…3). Sequential consumption of oxygen and then nitrate-N was observed (Angier et al, 2005;Gish et al, 2005), and concomitantly, MESA concentrations remained stable (Fig. 3).…”

Section: Mesa and Nitrate-n Fate In An Anaerobic Environmentmentioning

confidence: 81%

“…Groundwater samples were collected from piezometers installed a small, well-characterized, 70-ha research catchment located on the western shore of the Chesapeake Bay in the Maryland inner coastal plain (Angier et al, 2002(Angier et al, , 2005Gish et al, 2005). Two sets of nested piezometers at different sites within the riparian area of this catchment were sampled at various times during the year.…”

Section: Small Research Catchment In the Coastal Plain Within The Chementioning

confidence: 99%

“…We have also examined the fate of MESA relative to nitrate-N as part of a larger study to assess the effectiveness of riparian areas in mitigating agricultural nitrate-N. This well-characterized small catchment of 70 ha consisted of a small first order stream within a riparian wetland that received ground water from the 20 ha of catchment cropland that were under continuous corn production (Angier et al, 2002(Angier et al, , 2005Gish et al, 2005). Metolachlor and various forms of agricultural nitrogen were applied annually (Gish et al, 2005).…”

Section: Mesa and Nitrate-n Fate In An Anaerobic Environmentmentioning

confidence: 99%

“…Here, we consider additional data concerning MESA fate relative to nitrate-N in a small research catchment in the Chesapeake Bay watershed (Angier et al, 2002(Angier et al, , 2005Gish et al, 2005). We then investigated its potential use as a transport analog of agricultural nitrate-N from the Choptank River headwaters to the estuary.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Metolachlor metabolite (MESA) reveals agricultural nitrate-N fate and transport in Choptank River watershed

McCarty

Hapeman

Rice

et al. 2014

Science of The Total Environment

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“…3). Sequential consumption of oxygen and then nitrate-N was observed (Angier et al, 2005;Gish et al, 2005), and concomitantly, MESA concentrations remained stable (Fig. 3).…”

Section: Mesa and Nitrate-n Fate In An Anaerobic Environmentmentioning

confidence: 81%

Section: Small Research Catchment In the Coastal Plain Within The Chementioning

confidence: 99%

Section: Mesa and Nitrate-n Fate In An Anaerobic Environmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Metolachlor metabolite (MESA) reveals agricultural nitrate-N fate and transport in Choptank River watershed

McCarty

Hapeman

Rice

et al. 2014

Science of The Total Environment

Self Cite

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“…More recently, several field-based studies have been conducted to improve our understanding of groundwater hydrology within hillslope and riparian landscapes, with an interest in how the hydrology relates to nitrate transport (Burt et al, 1999;Vidon and Hill, 2004b;Angier et al, 2005). Vidon and Hill (2004b) investigated the groundwater hydrology of eight riparian zone sites in southern Ontario, Canada, that are comprised of glacial sediments and have a range in topography from relatively flat riparian to hillslopedominated.…”

mentioning

confidence: 99%

Riparian Buffer Landscape Effects on Groundwater Flow Paths and Nitrate Occurrences in Groundwater near Streams of the Eastern Shore of Virginia

Probasco¹

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Elevated concentrations of nitrate occur in groundwater throughout the United States due to the widespread application of nitrogenous fertilizers associated with agricultural land uses. Forested stream buffers, which separate upland agricultural areas from stream channels, are recognized for their importance as locations of groundwater nitrate removal through plant uptake and denitrification. An understanding of the groundwater hydrology of the buffer subsurface is important in being able to predict where denitrification can occur, since the groundwater hydrology determines the locations in which groundwater with elevated nitrate will intercept available supplies of organic matter. Previous studies have identified differences in the pattern of groundwater flow through riparian floodplains within stream buffers, which was related to differences in their ability to remove nitrate by denitrification. In this study, the effect of forested

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Hydrological mediated denitrification in groundwater below a seasonal flooded restored riparian zone

Jensen

Engesgaard

Johnsen

et al. 2017

Water Resources Research

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A restored riparian zone was characterized to understand the effects of flooding on subsurface hydrological flow paths and nitrate removal in groundwater. Field and laboratory investigations were combined with numerical modeling of dynamic flow and reactive nitrate transport. Flooding enhances nitrate removal in groundwater primarily by two mechanisms. First, by creating a stagnant flow zone beneath the flooded area thereby increasing the residence time and leaving more time for nitrate removal. Secondly, nitrate removal is increased by enhancing upward flow into the highly reactive organic‐rich top layers. Flooding therefore contributes to nitrate removal in “hot spots”, where nitrate is transported to the peat and during “hot moments”, when flow is stagnant. The permeability of the capping peat layer relative to the aquifer is important as it controls both mechanisms. The model shows that the deep‐seated nitrate removal is greater than projected from the laboratory nitrate reduction experiments.

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Hydrology of a first-order riparian zone and stream, mid-Atlantic coastal plain, Maryland

Cited by 48 publications

References 32 publications

Metolachlor metabolite (MESA) reveals agricultural nitrate-N fate and transport in Choptank River watershed

Metolachlor metabolite (MESA) reveals agricultural nitrate-N fate and transport in Choptank River watershed

Riparian Buffer Landscape Effects on Groundwater Flow Paths and Nitrate Occurrences in Groundwater near Streams of the Eastern Shore of Virginia

Hydrological mediated denitrification in groundwater below a seasonal flooded restored riparian zone

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