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Transfer of Escherichia coli to water from drained and undrained grassland after grazing.

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Transfer of Escherichia coli to water from drained and undrained grassland after grazing. / Oliver, David; Heathwaite, A. Louise; Haygarth, Philip; Clegg, Christopher.

In: Journal of Environmental Quality, Vol. 34, No. 3, 05.2005, p. 918-925.

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Oliver, David ; Heathwaite, A. Louise ; Haygarth, Philip ; Clegg, Christopher. / Transfer of Escherichia coli to water from drained and undrained grassland after grazing. In: Journal of Environmental Quality. 2005 ; Vol. 34, No. 3. pp. 918-925.

Bibtex

@article{19f0d2ce9dd44becb616b8cedd3ae150,
title = "Transfer of Escherichia coli to water from drained and undrained grassland after grazing.",
abstract = "The aim of this study was to determine the load of Escherichia coli transferred via drainage waters from drained and undrained pasture following a grazing period. Higher concentrations (ranging between 104 and 103 CFU g-1) of E. coli persisted in soil for up to 60 days beyond the point where cattle were removed from the plots, but these eventually declined in the early months of spring to concentrations less than 102 CFU g-1. The decline reflects the combined effect of cell depletion from the soil store through both wash-out and die-off of E. coli. No difference (P  0.05) was observed in E. coli loads exported from drained and undrained plots. Similarly, no difference (P  0.05) was observed in E. coli concentrations in drainage waters of mole drain flow and overland plus subsurface interflow. Intermittent periods of elevated discharge associated with storm events mobilised E. coli at higher concentrations (e.g. in excess of 400 CFU ml-1) than observed during low flow conditions (often <25 CFU ml-1). The combination of high discharge and cell concentrations resulted in the export of E. coli loads from drained and undrained plots exceeding 106 CFU L-1 s-1. The results highlight the potential for drained land to export E. coli loads comparable to those transferred from undrained pasture.",
keywords = "agriculture, faecal bacteria, Escherichia coli, transfer, hydrological pathways, drainflow, grassland, die-off, runoff",
author = "David Oliver and Heathwaite, {A. Louise} and Philip Haygarth and Christopher Clegg",
year = "2005",
month = may
doi = "10.2134/jeq2004.0327",
language = "English",
volume = "34",
pages = "918--925",
journal = "Journal of Environmental Quality",
issn = "0047-2425",
publisher = "ASA/CSSA/SSSA",
number = "3",

}

RIS

TY - JOUR

T1 - Transfer of Escherichia coli to water from drained and undrained grassland after grazing.

AU - Oliver, David

AU - Heathwaite, A. Louise

AU - Haygarth, Philip

AU - Clegg, Christopher

PY - 2005/5

Y1 - 2005/5

N2 - The aim of this study was to determine the load of Escherichia coli transferred via drainage waters from drained and undrained pasture following a grazing period. Higher concentrations (ranging between 104 and 103 CFU g-1) of E. coli persisted in soil for up to 60 days beyond the point where cattle were removed from the plots, but these eventually declined in the early months of spring to concentrations less than 102 CFU g-1. The decline reflects the combined effect of cell depletion from the soil store through both wash-out and die-off of E. coli. No difference (P  0.05) was observed in E. coli loads exported from drained and undrained plots. Similarly, no difference (P  0.05) was observed in E. coli concentrations in drainage waters of mole drain flow and overland plus subsurface interflow. Intermittent periods of elevated discharge associated with storm events mobilised E. coli at higher concentrations (e.g. in excess of 400 CFU ml-1) than observed during low flow conditions (often <25 CFU ml-1). The combination of high discharge and cell concentrations resulted in the export of E. coli loads from drained and undrained plots exceeding 106 CFU L-1 s-1. The results highlight the potential for drained land to export E. coli loads comparable to those transferred from undrained pasture.

AB - The aim of this study was to determine the load of Escherichia coli transferred via drainage waters from drained and undrained pasture following a grazing period. Higher concentrations (ranging between 104 and 103 CFU g-1) of E. coli persisted in soil for up to 60 days beyond the point where cattle were removed from the plots, but these eventually declined in the early months of spring to concentrations less than 102 CFU g-1. The decline reflects the combined effect of cell depletion from the soil store through both wash-out and die-off of E. coli. No difference (P  0.05) was observed in E. coli loads exported from drained and undrained plots. Similarly, no difference (P  0.05) was observed in E. coli concentrations in drainage waters of mole drain flow and overland plus subsurface interflow. Intermittent periods of elevated discharge associated with storm events mobilised E. coli at higher concentrations (e.g. in excess of 400 CFU ml-1) than observed during low flow conditions (often <25 CFU ml-1). The combination of high discharge and cell concentrations resulted in the export of E. coli loads from drained and undrained plots exceeding 106 CFU L-1 s-1. The results highlight the potential for drained land to export E. coli loads comparable to those transferred from undrained pasture.

KW - agriculture

KW - faecal bacteria

KW - Escherichia coli

KW - transfer

KW - hydrological pathways

KW - drainflow

KW - grassland

KW - die-off

KW - runoff

U2 - 10.2134/jeq2004.0327

DO - 10.2134/jeq2004.0327

M3 - Journal article

VL - 34

SP - 918

EP - 925

JO - Journal of Environmental Quality

JF - Journal of Environmental Quality

SN - 0047-2425

IS - 3

ER -