Nutrient Loading And Its Consequences In Lake Ecosystem

Microcosmal studies were conducted for three major water resources of Bhopal viz. Upper Lake, Lower Lake and Shahpura Lake. The experiments were conducted for 30 days and at one stretch, only one nutrient was taken. Such experiments were performed in five replicates, one for each nutrient viz calcium, magnesium, potassium, nitrogen and phosphorus. In all fifteen sets, five for each lake, with a total of sixty model ecosystems were developed for a total spell of 15 months. The results so obtained were extrapolated at field level to set the limits.