Natural beech wood

Natural beech wood is a beech wood, that is able to replenish and sustain itself on its own.
Beech is a valued timber, but most beech woods requires human intervention to replace old trees, since the young trees are not able to survive at all or at a rate, that sustains the beech population over time. There can be various reasons for this condition. Heavy forest floor coverage of other plants in the spring, shadowing the young beech-shoots is a common cause. Abundance of nutrient rich soils, will also be difficult to handle for beech woods in the long run.
In a natural beech wood, one would see beech trees of all ages, including fallen and dead trees. Other tree types might be mixed in, but not to a degree that they threaten the dominant beech.
The term could be used with other kinds of tree species, such as 'natural oak wood', 'natural birch wood', etc..
Examples of natural beech wood forests:

Cwm Clydach National Nature Reserve in southeast
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