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| DOI: | 10.2489/jswc.69.3.243 |
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| Web URL(s): | http://www.jswconline.org/content/69/3/243.full.pdf+html
Last checked: 05/21/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Reuben, T. N.;
Sorensen, D. L. |
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| Author Affiliation: | Reuben: Research Associate; Sorensen: Adjunct Professor, Utah Water Research Laboratory, Utah State University, Logan, Utah |
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| Title: | Estimated nitrate loadings from lawns, irrigated cropland, and on-site wastewater to an aquifer in Ogden Valley, Utah |
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| Source: | Journal of Soil and Water Conservation. Vol. 69, No. 3, May/June 2014, p. 243-253. |
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| Publishing Information: | Ankeny, Iowa: Soil and Water Conservation Society |
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| # of Pages: | 11 |
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| Related Web URL: | http://www.jswconline.org/content/69/3/243.abstract
Last checked: 05/21/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Drainage water; Effluent water; Leaching; Nitrate nitrogen; Nitrogen fertilizers; Residual effects; Water quality
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| Abstract/Contents: | "Nitrate-nitrogen (NO3-N) loadings to groundwater from irrigated croplands, lawns, and on-site wastewater drain fields were simulated using the Nitrogen Loss and Environmental Assessment Package-Geographic Information System (NLEAP-GIS) 4.2 model in Ogden Valley, Utah. The study determined the influence of domestic wastewater and nitrogen fertilizers applied to lawns and fields on NO3-N loadings to the shallow, unconfined aquifer in the drainage area of the south fork of the Ogden River. Groundwater NO3-N concentrations were estimated from the NLEAP-GIS 4.2 simulated leaching losses. Annual leaching rates (kg N ha-1 y-1) from the drain-fields and the lawns were, respectively, more than 2.6- and 1.1-fold higher than from the croplands. Total leaching losses (kg N y-1) from the croplands and lawns were, respectively, 70- and 50-fold higher than total loads from drain-fields. Lawns and drain-fields had lower total leaching losses than the cropland because the total area was smaller than the cropland. The model predicted that a 50% reduction in lawn fertilizer application rate would result in a 36% decline in leaching. A 50% reduction in irrigation water application rate only reduced predicted leaching by 18%. NLEAP was able to predict NO3-N concentrations (1.9±0.3 mg N L-1 [1.9±0.3 ppm]) resulting from blending leachate into groundwater within the range of the NO3-N concentrations measured in two wells in the study area. Predicted residual soil NO3-N concentrations matched measured concentrations only where assumed initial NO3 concentration and fertilization practices were reasonably accurate." |
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| Language: | English |
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| References: | 44 |
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| Note: | Maps
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reuben, T. N., and D. L. Sorensen. 2014. Estimated nitrate loadings from lawns, irrigated cropland, and on-site wastewater to an aquifer in Ogden Valley, Utah. J. Soil Water Conserv. 69(3):p. 243-253. |
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| DOI: 10.2489/jswc.69.3.243 |
| Web URL(s):
http://www.jswconline.org/content/69/3/243.full.pdf+html
Last checked: 05/21/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2223101 |
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