This fire season may break the system you describe; fire is the enemy of profit. Even timber barons should know this. 

I grew up on Lake Michigan, which strikes me as a parallel case to Oregon's forests. A couple decades after the St. Lawrence seaway brought in lampreys in ship ballast (in the 1950's I think) the lake's living ecosystem basically ceased to exist: nothing could withstand the lamprey onslaught and formerly healthy populations of lake trout and perch pretty much vanished. Smelt runs turned into massive die offs on the shore:  I remember a three foot high line of them all along this one beach.

Successive generations of environmentalists and fish/wildlife people tried to restore the balance, but successive generations of invasive species, and industrial and agricultural polluters, have turned the lake into a largely lifeless bathtub of a slightly less than toxic water-based liquid. It's lovely to look at,  about the only beautiful thing there. But it's not a living lake.