This has to do with stages of succession- the natural plant community establishment and change over time following a disturbance (like fire, land conversion, clear-cut, major wind event, etc.)
Early plant/tree establish'ers are called the seral (pioneer) species, and the ones that establish much later are the climax species. This is a broad definition. Local influences come into play, like the severity of the disturbance, the vegetation type, elevation, aspect, annual precip, frost-free period, things like that. If the system wasn't reset to "zero", then some trees will reestablish and some wont. If it was reset to zero then only the early seral species will come in right away. The climax species might not begin to occur on the site for decades. Since you're talking about hardwood country, here's a picture to illustrate: