A Quantitative Description of a Deciduous Forest Canopy Using a Photographic Technique

Washington D.C.

1990

S. 381-393

5 Abb., 2 Tab., 37 Lit. Ang.

Bandaufführung

7380

64573

Three features of a deciduous forest canopy were measured using nondestructive techniques. Vertical distribution of leaf area was measured using an established technique (MacArthur and Horn 1969). A technique was developed and used to quantify seasonal variation in the canopy. Leaf area index (LAI) was calculated with several techniques, which were compared to litter trap LAI values to determine their accuracy. A new technique for LAI calculation was developed, which accurately estimated LAI at out site and may be applied to other eastern hardwood forests. These three techniques are proposed to quantitatively describe a deciduous forest canopy. These measurements can be made nondestructively, with minimal equipment and labor costs, and with a high degree of accuracy.