Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Hydrologic Control of Lake Susceptibility to Acidification.
Author Eilers, J. M. ; Glass, G. E. ; Webster, K. E. ; Rogalla, J. A. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;Wisconsin Dept. of Natural Resources, Rhinelander.
Year Published 1983
Report Number EPA-600/J-83-156;
Stock Number PB84-172394
Additional Subjects Acidification ; Pollution ; Lakes ; Evaluation ; Precipitation(Chemistry) ; Alkalinity ; Color ; Chlorophylls ; Surface water runoff ; Ground water ; Cluster sampling ; Hydrology ; Wisconsin ; Reprints ; Acid precipitation
Library Call Number Additional Info Location Last
NTIS  PB84-172394 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 11p
Two hundred and seventy-five lakes were sampled in the summer of 1979 to assess the factors controlling susceptibility of northcentral Wisconsin lakes to acidification. In addition to direct evaluation of means and ranges of the physical and chemical characteristics, a cluster analysis was carried out using alkalinity, color, and chlorophyll a data. Three well-defined clusters emerged that appeared to be controlled by hydrology: A - dominated by surface runoff; B - dominated by groundwater; C - dominated by precipitation. Relationships between morphometric, hydrologic, and terrigenous factors that can influence lake water quality and susceptibility were further examined by discriminant analysis of 18 watershed properties across the three lake clusters. Hydrologic factors were most important in differentiating the low alkalinity and high alkalinity lakes.