What is the relationship between pH and moisture?

This is in context to woodland differences.

Thank you.

There is no relationship between moisture and pH, per se; however, moisture must be present in order to measure pH. Some research has been done, of which I am aware, in which two nails were driven to a particular depth in cut trees and the resistance between the nails was measured. The resistance was then related to the age, health, etc of the tree. I am not aware of any research that has been done on mesuring the pH of tree sap but I'm sure someone has done it.