Nutrient budgets and the regulation of nutrient concentrations in a small sub‐arctic lake in northern Sweden

摘要: SUMMARY. A 5-year study was made of the hydrology and water chemistry in watershed Lake Stugsjon, a small lake sub-arctic region northern Sweden. Of total yearly runoff, 80% occurs during spring thaw May June largely regulates nutrient loading. The ice-free period is June—October. Atmospheric deposition nitrogen phosphorus among lowest recorded anywhere, spite which it accounts for approximately half summer Dry fall-out up major part atmospheric summer. Conductivity measurements showed that constituents were not influenced by processes within lake. The concentration probably regulated benthic algae assimilated inorganic from sediments released organic to water. Phosphorus loading temperature combination clear relationship with mean chlorophyll-α period.