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Leaching of bacterial indicators of faecal contamination through four New Zealand soils

Aislabie, J., Smith, James J., Fraser, Rhonda, & McLeod, Malcolm (2001) Leaching of bacterial indicators of faecal contamination through four New Zealand soils. Australian Journal of Soil Research, 39(6), pp. 1397-1406.

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Abstract

Land application of animal waste can result in bacterial contamination of shallow groundwater and/or waterways. Using 500-mm-diameter barrel lysimeters, we investigated the potential for bacterial indicators to leach through 4 New Zealand soils treated with dairy shed effluent (DSE). DSE was applied to soil lysimeters containing poorly drained Gley Soils (Te Kowhai and Netherton) and well-drained Allophanic (Waihou) and Pumice Soils (Atiamuri) at 50 mm/h, a typical field application rate used by farmers. Simulated rainfall was applied continuously at a rate of 5–10 mm/h, and leachate collected at a depth of 700 or 750 mm was analysed for faecal coliforms, Escherichia coli, and faecal enterococci. Bacterial indicators of faecal contamination readily moved through the Te Kowhai and Netherton soils, but not the Waihou and Atiamuri soils. Differential icrobial movement was attributed to differences in soil structure. The poorly drained soils have coarse subsoil structures with macropores, favouring bypass flow. In contrast, the welldrained soils have a finer, more uniformly porous soil structure that minimised bypass flow and allowed matrix flow.

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32 citations in Web of Science®

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ID Code: 8547
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author. Author contact details: jj.smith@qut.edu.au
Additional URLs:
Keywords: soil, indicator, tracer, movement, leaching, bacterial, groundwater, dairy, effluent
DOI: 10.1071/SR00086
ISSN: 0004-9573
Subjects: Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > ANIMAL PRODUCTION (070200) > Animal Protection (Pests and Pathogens) (070205)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > SOIL SCIENCES (050300) > Land Capability and Soil Degradation (050302)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Modelling (090702)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > MICROBIOLOGY (060500) > Bacteriology (060501)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > SOIL SCIENCES (050300)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Management (050205)
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > VETERINARY SCIENCES (070700) > Veterinary Microbiology (excl. Virology) (070707)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > SOIL SCIENCES (050300) > Soil Biology (050303)
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > OTHER AGRICULTURAL AND VETERINARY SCIENCES (079900) > Agricultural Hydrology (Drainage Flooding Irrigation Quality etc) (079901)
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > VETERINARY SCIENCES (070700) > Veterinary Virology (070712)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Impact Assessment (050204)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > MICROBIOLOGY (060500) > Microbial Ecology (060504)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Institute for Sustainable Resources
Copyright Owner: Copyright 2001 CSIRO
Deposited On: 11 Jul 2007
Last Modified: 15 Jan 2009 17:38

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