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Published online 2 February 2006
Published in J Environ Qual 35:421-432 (2006)
DOI: 10.2134/jeq2005.0115
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Right arrow Nitrogen
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Spatial Analysis of Land Use Impact on Ground Water Nitrate Concentrations

Victoria S. Bensona,*, John A. VanLeeuwena, Javier Sancheza, Ian R. Dohooa and George H. Somersb

a Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, C1A 4P3, Canada
b Water Management Division, PEI Department of Environment, Energy and Forestry, Charlottetown, PE, C1A 7N8, Canada


Figure 1
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  		Fig. 1. Location of study area, Prince Edward Island, Canada.

 

Figure 2
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  		Fig. 2. Average ground water nitrate concentrations in 174 watersheds in Prince Edward Island (number of watersheds in each nitrate category in parentheses), 1997–2001. Buffer zone locations ({circ}) are also included for the year 2001.

 

Figure 3
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  		Fig. 3. Percentage of potato cover in 174 watersheds in Prince Edward Island (number of watersheds in each nitrate category in parentheses), 2000.

 

Figure 4
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  		Fig. 4. Percentage of blueberry cover in 174 watersheds in Prince Edward Island (number of watersheds in each nitrate category in parentheses), 2000.

 

Figure 5
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  		Fig. 5. Average ground water nitrate concentrations in 664 freeform polygons in Prince Edward Island (number of freeform polygons in each nitrate category in parentheses), 1997–2001.

 

Figure 6
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  		Fig. 6. Predicted values of ground water nitrate concentrations versus percentage of grain coverage for interquartile ranges of percentage of hay, as found in buffer zone analyses in Prince Edward Island, 2001.

 

Figure 7
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  		Fig. 7. Predicted values of ground water nitrate concentrations versus percentage of residential coverage for interquartile ranges of percentage of hay, as found in buffer zone analyses in Prince Edward Island, 2001.

 




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