One of the most beautiful explanations of an elegant natural system : Compartmentalization of Decay in Trees or CODIT
Developed and described by Alex L. Shiga Plant Pathologist, U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, Durham, New Hampshire and Harold G. Marx Research Applications Staff Assistant, U.S. Department of Agriculture, Forest Service, Washington, DC
https://www.nrs.fs.fed.us/pubs/misc/ne_aib405.pdf READ the full text and VIEW the clear illustrations.
“The CODIT system is based on two major points. First, a tree is a highly compartmented plant. Second, after a tree is wounded, the resulting defects are compartmentalized”…by Alex L. Shiga and Harold G. Marx