||Acid Deposition and Watershed Characteristics in Relation to Lake Chemistry in Northeastern Minnesota.
Allert, J. D.;
Liukkonen, B. W.;
Loucks, O. L.;
Glass, G. E.;
||Environmental Research Lab.-Duluth, MN. ;Minnesota Univ., Duluth. Coll. of Science and Engineering. ;Butler Univ., Indianapolis, IN. Holcomb Research Inst.
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The relationship between lake sensitivity to atmospheric acidic inputs and the neutralization capacity of watersheds is examined for 267 lakes in northeastern Minnesota. Three water chemistry/sensitivity measures (color, sulfate, and alkalinity) are correlated with variables representative of precipitation and sulfate inputs, hydrology, and the acid neutralization capacity of various watershed components. An ordinal scale for ranking bedrock and surficial deposit neutralization capacity is presented. The watershed variables found to account for the largest percentages of the variability in measured color, sulfate, and alkalinity levels are determined. The results illustrate important averaging properties of watersheds from small headwater systems to large drainages and the difficulty in obtaining correlations for some water quality measures (e.g., alkalinity) when some variables, such as soils and land cover, are available only as large-area averages.
||Pub. in Environment International, v11 p425-440 1985. Prepared in cooperation with Minnesota Univ., Duluth. Coll. of Science and Engineering, and Butler Univ., Indianapolis, IN. Holcomb Research Inst.
|NTIS Title Notes
||Reprint: Acid Deposition and Watershed Characteristics in Relation to Lake Chemistry in Northeastern Minnesota.
|PUB Date Free Form
||68A; 68D; 48G; 99A
||PC A02/MF A01