Here's the thing about Cedar Vs Fir in coastal *absolute* growth rates: fir is very shade-intolerant, cedar is not. First hundred years after a major disturbance event (fire? clear-cut? volcano?) fir has the advantage. In the next round, cedar is boss for about 300 years. After that, it's all about site. Fir is MUCH more fire-resistant, cedar is MUCH better-suited to recovery from wind events. At about 500 years, a stand will be dominated by fir or cedar dependent on what happened in-between. "What about Hemlock?", I hear you ask. Well, hemlock seems to be the biomass king up and down the coast, but the REALLY big trees are very seldom hemlocks. Same goes for Spruce. That's not to say there aren't monster examples of both species.
As for Alder: they have a lot going for them as an early-successional species. It's good that the market value is up, because we will be reaping the benefits for many years from the nitrate fixation they add to the soil. That is, while alder is an early competitor to fir, later, it is a big benefactor. In the past, they were wholesale killed as a "weed" species. Many plantations have suffered as a result.
As for Alder: they have a lot going for them as an early-successional species. It's good that the market value is up, because we will be reaping the benefits for many years from the nitrate fixation they add to the soil. That is, while alder is an early competitor to fir, later, it is a big benefactor. In the past, they were wholesale killed as a "weed" species. Many plantations have suffered as a result.