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

Journal of Mathematics and Statistics

Maliha S. Nash¹  Susan E. Franson¹  Deborah J. Chaloud¹ 

关键词: Savannah River Basin;    Surface Water Biology;    Landscape Metrics;    Canonical Correlation;   

DOI  :  10.3844/jmssp.2005.29.34

学科分类：社会科学、人文和艺术（综合）

来源: Science Publications

【 摘 要 】

Surface water quality for the Savannah River basin was assessed using water biology andlandscape metrics. Two multivariate analyses, partial least square and canonical correlation, were used todescribe how the structural variation in landscape metrics may affect surface water biology and to definethe key landscape variable(s) that contribute the most to variation in surface water quality. The resultsshowed that the key landscape metrics in this study area were: percent forest, percent of total area inagriculture (row crops + pasture) on moderately erodible soils, percent of total area with slopes greaterthan 3% and stream density. The first two canonical variates describe the linear combinations of the twodata sets (r = 0.74 and 0.63), weighted mainly by percent of total area with slopes greater than 3%, taxarichness of sensitive insects to pollution (EPT; Ephemeroptera-Plecoptera-Trichoptera Index), algalgrowth potential and percent of total area in agriculture on moderately erodible soils.

【 授权许可】

Unknown