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Published online 12 October 2005
Published in J Environ Qual 34:1980-1991 (2005)
DOI: 10.2134/jeq2004.0337
© 2005 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
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Multivariate Statistical Characterization of Water Quality in Lake Lanier, Georgia, USA

Xiaoqing Zenga,b and Todd C. Rasmussena,*

a Warnell School of Forest Resources, Univ. of Georgia, Athens, GA 30602-2152
b Currently, Stetson Engineers, 2171 E. Francisco Blvd., Suite K, San Rafael, CA 94901



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Fig. 1. Lake Lanier location and water quality sampling stations.

 


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Fig. 2. Monthly rainfall and inflows to Lake Lanier during the water quality sampling period.

 


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Fig. 3. Correlation between total suspended solids (TSS) concentration and discharge (Flow) in the Chattahoochee and Chestatee Rivers.

 


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Fig. 4. Spatial and temporal variations of soluble reactive phosphorus (SRP) and total iron (TFe) concentrations in Lake Lanier.

 


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Fig. 5. Similarity dendrogram among tributary sampling stations from cluster analysis. Five lake tributary groupings shown: (i) Chestatee and Chattahoochee Rivers; (ii) Wahoo Creek, East Fork Little River, Flat Creek North, Balus Creek, and West Fork Little River; (iii) Limestone Creek; (iv) Six Mile Creek; and (v) Flat Creek South.

 


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Fig. 6. Similarity dendrogram among tributary sampling times in the group of the Chattahoochee and Chestatee Rivers sampling stations. Evident association includes May through November 1996 except September.

 


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Fig. 7. Similarity dendrogram among lake sampling stations from cluster analysis. Four lake station groupings shown: (i) The lowest part of the lake near the dam (Stations 1, 2, 3, 4, 5); (ii) the central part of the lake (Stations 6, 7, 8, 9, 10); (iii) the upper part of the lake (Stations 12, 13, 14, 15, 16, 17); and (iv) the embayment near Flat Creek South (Station 11).

 


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Fig. 8. Similarity dendrogram among lake sampling times in the group of lake sampling stations nearest the dam (Stations 1, 2, 3, 4, 5). (a) Epilimnion; (b) Hypolimnion.

 





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