The use of aerial photographs and angle-gauge sampling of tree crown diameters for forest inventories

Lawrence R. Gering; Dennis M. May; Kurt B. Teuber

Treesearch

The use of aerial photographs and angle-gauge sampling of tree crown diameters for forest inventories

Informally Refereed

Authors:

Lawrence R. Gering, Dennis M. May, Kurt B. Teuber

Year:

1990

Type:

Scientific Journal

Station:

Southern Research Station

Source:

State-of-the-art methodology of forest inventory:a symposium proceedings; 1989 July 30-August 5; Syracuse, NY.

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Abstract

The Forest Inventory and Analysis unit of the Southern Forest Experiment Station is charged with conducting continuous inventories of the forest resources of the Midsouth.Techniques that offer innovative approaches for improving the efficiency of these inventories are in demand.One new approach for estimating the density of forest stands involves the derivation of a technique for obtaining stand density from aerial photographs based on the principles of selection with probability proportional to size.This is accomplished by the development and use of an aerial-photo angle-gauge that is used in a procedure very similar to the ground point-sampling technique proposed by Bitterlich (1948).

Keywords

SOFIA, technique, TN

Citation

Gering, Lawrence R.; May, Dennis M.; Teuber, Kurt B. 1990. The use of aerial photographs and angle-gauge sampling of tree crown diameters for forest inventories. State-of-the-art methodology of forest inventory:a symposium proceedings; 1989 July 30-August 5; Syracuse, NY.