GEOSCAN Search Results: Fastlink

GEOSCAN Menu


TitleMass balance calculations to estimate nitrate proportions from various sources in the agricultural Wilmot Watershed of Prince Edward Island
AuthorSomers, G; Savard, M M; Paradis, D
SourceProceedings of the 60th Annual Canadian Geotechnical Society (CGS) and 8th Joint Canadian National Chapter of the International Association of Hydrogeologists (IAH-CNC) Groundwater Specialty Conference; 2007 p. 212-218
Year2007
Alt SeriesEarth Sciences Sector, Contribution Series 20080086
MeetingOttawaGeo2007: 60th Annual Canadian Geotechnical Society (CGS) and 8th Joint Canadian National Chapter of the International Association of Hydrogeologists (IAH-CNC) Groundwater Specialty Conference; Ottawa; CA; October 21-24, 2007
Documentbook
Lang.English
MediaCD-ROM; digital
ProvincePrince Edward Island
NTS11L/05
AreaWilmot
Lat/Long WENS -64.0000 -63.5000 46.5000 46.2500
Subjectshydrogeology; environmental geology; soils science; aquifers; groundwater; groundwater regimes; groundwater pollution; groundwater flow; groundwater resources; nitrate; soils; soil studies; soil geochemistry; pollution; Wilmot Watershed
Illustrationshistograms; tables; plots
ProgramGroundwater Mapping Program
AbstractA seasonal apportionment of nitrate sources has been conducted to investigate the dynamics of nitrogen (N) transfer from soils to groundwater. A mass balance model is used to link specific cropping practices to source contributions to GW. The model provides an independent source apportionment to be compared with a previous one based on nitrate isotope results. Both approaches demonstrate that chemical fertilizers dominate the growing-season load, whereas crop residues dominate the non-growing contribution, implying that simple changes to practices may help decrease N losses from agriculture.
GEOSCAN ID225145