A high forest can have one or more canopy layers.

Such gaps in the trees made openings through all the canopy layers, under which more dense brush could spring up.

(2) The surface of the city corresponds to the level of the urban canopy layer.

On the top, the canopy layer, we've got a pair of red-tailed hawks and a dozen different species of trees.

Pannes are open and without a canopy layer.

There is seldom a canopy layer on Rights-of-ways.

Then there is the canopy layer.

Usually, secondary forests have only one canopy layer, whereas primary forests have several.

The newly bare trees open up the canopy layer, enabling sunlight to reach ground level and facilitate the growth of thick underbrush.

Dominant and co-dominant canopy trees form the uneven canopy layer.