"Also, much of the acid in soils, especially in an already acid forested environment, is produced in the natural processes of tree growth and the breakdown of soil organic matter."
(much of the acid in soils, especially in an already acid forested environment; is produced; L:in the natural processes of tree growth)
much of the acid in soils, especially in an already acid forested environment
is produced
L:in the natural processes of tree growth