timber forests and non-timber forests?

Hi , please tell me the difference between timber forests and non-timber forests.

random_man2014-07-03T08:33:29Z

I'm guessing the difference would be that one is managed for timber production and the other is not

apairofjacks2014-06-28T03:58:03Z

http://www4.ncsu.edu/~sills/ginger/my_non.htm