The nutrients in the solution surrounding the leaves are provided by dust particles blown in the wind, solutes dissolved in precipitation and solutes added to precipitation as it flows down the trees ...The nutrients in the solution surrounding the leaves are provided by dust particles blown in the wind, solutes dissolved in precipitation and solutes added to precipitation as it flows down the trees and shrubs in the forest canopy (if there is one), as well as solutes that may be carried up with capillary water from the substrate that the moss is growing on.
