Dynamic Modelling of Recovery from Acidification of Lakes in Killarney Park, Ontario, Canada

摘要: During much of the 1900s, lakes in Killarney Provincial Park have been exposed to high levels acid deposition due sulfur emissions from nearby metal smelters Sudbury. The this large point source decreased about 10% what they were 1960s. Lake water quality has greatly changed response reduced emissions, with noticeable declines sulfate, aluminum and calcium concentrations. Here we apply dynamic acidification model MAGIC 3 Park. lakes, which different buffering capacities times, selected represent fast, intermediate slow recovery acidification. was calibrated match observed data for 4 forecast scenarios future reductions applied. results indicate that there is still a potential improvement Killarney. time varies greatly. For lake having slowest several decades are needed chemistry stabilize after implementation reductions.