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dc.contributor.authorBidwell, Vincenten
dc.contributor.authorLilburne, L.en
dc.contributor.authorScott, D.en
dc.contributor.authorThorley, M. J.en
dc.date.accessioned2011-05-02T23:51:43Z
dc.date.issued2009-05en
dc.identifier.urihttps://hdl.handle.net/10182/3487
dc.description.abstractThis Technical Report arises from public concern about the effects of agricultural land use on groundwater quality. It applies existing tools and information to provide a strategic view of the issue of nitrate discharges to groundwater on the Canterbury Plains. The tools are being continually improved by scientists in consultation with Environment Canterbury and primary sector industries. Nitrate is one of the contaminants for which a threshold is set in the New Zealand Drinking-Water Standards of 11.3 mg/L nitrate-nitrogen. Nitrate-nitrogen is referred to as nitrate in this report. Existing monitoring of nitrate in groundwater is not an accurate indicator of the effects of existing land-use because of time lags. It can take up to several decades for the effect of a land-use change to be seen in groundwater. Nitrate concentrations also vary over a year, from year to year and are very influenced by day-to-day land use practices.en
dc.language.isoenen
dc.rightsCopyright © The Authorsen
dc.subjectnitrate leachingen
dc.subjectgroundwater rechargeen
dc.subjectgroundwater modellingen
dc.subjectCanterbury Plainsen
dc.titleNitrate discharge to groundwater from agricultural land use: an initial assessment for the Canterbury Plainsen
dc.typeReport
lu.contributor.unitLincoln Universityen
lu.contributor.unitLincoln Agritechen
pubs.commissioning-bodyThe Steering Group of the Canterbury Water Management Strategyen
pubs.confidentialfalseen
pubs.organisational-group/LU
pubs.organisational-group/LU/Lincoln Agritech
pubs.publication-statusPublisheden
lu.subtypeTechnical Reporten


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