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Association of Landscape Metrics to Surface Water Biology in the Savannah River Basin

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Abstract:Surface water quality for the Savannah River basin was assessed using water biology and landscape metrics. Two multivariate analyses, partial least square and cannonical correlation, were used to describe how the structural variation in landscape variable(s) that contribute the most to variation in surface water quality. Our results showed that the key landscape metrices in this study area were: percent forest, percent of total area in agriculture (row crops + pasture) on moderately erodible soils, percent of total area with slopes greater than 3 percent, and stream density. The first two canonical variates describe the linear combinations of the two data sets (r=0.74 and 0.63), weighted mainly by percent of total area with slopes greater than 3 percent, taxa richness of sensitive insects to pollution (EPT; Ephemeroptera-Plecoptera-Trichoptera Index), algal growth potential and percent total area in agriculture on moderately erodible soils.

Although this work was reviewed by EPA and approved for publication, it may not necessarily reflect official Agency policy.
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Citation:Nash, M. S., D. J. Chaloud, and S. E. Franson. Association of Landscape Metrics to Surface Water Biology in the Savannah River Basin. JOURNAL OF MATHEMATICS AND STATISTICS 1(1):29-34, (2005).
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Contact: Chris Siebert - (702) 798-2234 or siebert.christopher@epa.gov
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Division: Environmental Sciences Division
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Branch: Landscape Ecology Branch
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Product Type: Journal
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Published: 04/04/2005
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Bullet Item Association of Landscape Metrics to Surface Water Biology in the Savannah River Basin
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Related Entries:
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Bullet Item Development of Landscape Indicators for Use in Regional Ecological Risk Assessments
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