During Autumn in Ontario, Canada, You Are Walking by a Tree

During autumn in Ontario, Canada, you are walking by a tree near a deep lake when you see two leaves fall. One leaf drops on the ground near your feet and the other is blown out into the middle of the lake, where it sinks. Assuming that these leaves have identical physical and chemical composition, compare the rate and processes by which the nutrients in the two leaves will be recycled and used again by producers.