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Predicting solute yields in the natural waters of a subalpine system in alberta canada

, : Predicting solute yields in the natural waters of a subalpine system in alberta canada. Arctic & Alpine Research 16(2): 217-224

An intensive sampling of the natural waters originating from a subalpine watershed was carried out during 1971 and 1972. The information obtained was utilized in regression models to estimate daily outputs of the main constituents (Ca2+, Mg2+, and HCO3-) and other constituents (Na+ SO42-, and SiO2). Despite the small size of the area (9.40 km2), the yields of the geochemical constituents were large; the sum of constituents ranged from 12.4-409.2 [tons] km2 yr-1. The derived equations were independently tested for their predictions for the years 1973 and 1974, and showed their validity in such estimations. The statistical relationships for estimating solute loads provided geochemical information on the subalpine system for different times during the year. The rate of increase in solute yields for unit increase in streamflow was maximum for HCO3- and Ca2+, moderate for SO42- and Mg2+, and minimum for SiO2, Na+ and K+. Maximum solute loads were transported during the months having maximum streamflows (May, June, July).


DOI: 10.2307/1551073

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