A dozen or so years ago Len Brackett started down this path in reference to the inimin (sp?) forest in northern CA. It would be interesting to reacquaint with that work and see what applies today.
IMHO this should be an issue that is driven nationally (as in "we need one!) but finessed locally. I'm from the upper mid-west U.S. and I now live on Vancouver Island, B.C. The two places have very different forests and therefore should have very different forestry practices.
There are probably schemes in place that we can look to as well, such as FSC.

Best,
Chris Koehn