Regarding Fisher and Faustmann, it is now recognized
that Faustmann's solution was more sophisticated
than Fisher's and incorporated his insight, but
went further.  In particular, the Fisher solution
is correct only if one is not planning to do
anything with the land after one cuts it down.
It is the "cut and run" solution, with the implied
followup being to put your money from selling the
timber into a bond or bank account and earn
interest.

If you are interested in replanting,
then Faustmann showed you cut sooner to get the
more rapidly growing new trees in sooner.  However,
Faustmann's work was not translated into English
until the 1950s, I believe.

More recently (1971) Hartmann (in Economic Inquiry)
generalized all this further to allow for values,
whether marketed or not and internal or external
to be included.  Then one may cut still sooner,
or later, or not at all, depending on those other
values and their time patterns.

Barkley Rosser