Record Display for the EPA National Library Catalog


Main Title Summer total phosphorus in lakes in Minnesota, Wisconsin, and Michigan /
Author Omernik, J. M. ; Larsen, D. P. ; Rohm, C. M. ; Clarke, S. E. ;
Other Authors
Author Title of a Work
Omernik, James M.
Brown, Douglas D.
CORP Author Northrop Services, Inc., Corvallis, OR.;Corvallis Environmental Research Lab., OR.
Publisher [Springer International],
Year Published 1988
Report Number EPA/600/J-88/419;
Stock Number PB90-108283
OCLC Number 19488663
Subjects Eutrophication--Lake States--Maps ; Water--Phosphorus content--Lake States--Maps
Additional Subjects Phosphorus ; Lakes ; Mapping ; Food chains ; Minnesota ; Wisconsin ; Michigan ; Seasonal variations ; Water chemistry ; Trophic level ; Regional analysis
Library Call Number Additional Info Location Last
ESBD  EPA-600/J-88-419 item 1 CPHEA/PESD Library/Corvallis,OR 09/21/2016
NTIS  PB90-108283 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 map : color ; 67 x 57 cm
A map of summer total phosphorus in lakes has been compiled for Minnesota, Wisconsin, and Michigan to clarify regional patterns in attainable lake trophic state. Total phosphorus was used as a measure of lake trophic state because: phosphorus plays a central role in controlling the overall fertility of most lakes, total phosphorus values are available for a great number of lakes, and phosphorus is measured in a consistent manner. The maps were compiled using patterns of total phosphorus data and observed associations between these data and geographic characteristics including physiography, land use, geology, and soils. Regions depicted on the map represent areas of similarity in phosphorus concentrations in lakes, or similarity in the mosaic of values, as compared to adjacent areas. Within each region, differences in total phosphorus can be compared to natural and anthropogenic factors to determine the types of lakes representative of each region, the factors associated with differences in quality, and the realistically attainable phosphorus levels for each type of lake. (Copyright (c) 1988 Springer-Verlag New York Inc.)
Map prepared by Douglas D. Brown. Issued in Environmental Management, Vol. 12, No. 6, Nov. 1988. Includes histograms which show the frequency distribution in lake phosphorus measurements. On verso: Table 1. Descriptions of regions defined on the map of summer total phosphorus in lakes in Minnesota, Wisconsin, and Michigan.