By hello@growdigital.org (Jake Rayson) on Mar 20, 2019 01:29 pm
The gaps between tree canopies should be about ¼ to ½ of the average tree canopy diameter. This is to allow enough light to reach the understorey plants.
It’s important to leave enough space between trees in the canopy layer, so that there’s enough light coming through to the plants below. Otherwise, you’ll end up with weak and spindly specimens!