Conservation of natural forest in any form will help preserve biodiversity.

No natural forest ever grew in a formation like that.

Some efforts have been made for conservation of natural forest near the lake.

However, between 1990 and 1999 trees were only taken from natural forests one time, in 1995.

There is very little natural forest in the county.

Once the park had been a natural forest of luxuriant trees.

Many of its natural forests are being cut down to provide fuel wood especially during winter.

Out of the total area, 85% is covered by natural forest.

Discussion question: What do you think is the difference between a tree farm and a natural forest?

The computer model simulated a year's growth in a natural forest.