Quote:
Originally Posted by Herrania
Ray - Is that why I've seen a few botanists say plain white reflectors are better than metallic, especially for understory plants?
|
In the case of reflectors, its a matter of degree, starting with a true mirror.
With a mirror, a beam of light is reflected in the same angle that the incoming light strikes it. If sunlight coming in at 45-degrees from above hits a mirror, it is reflected at 45 degrees straight to the floor. The less mirror-like the surface, the more scattering of the light.
At the opposite end of that spectrum (hah!) is a bright white, matte surface. In that case, the light is scattered in all directions, so plants that are not directly in the beam of light still get some.