Unit area control--its development and application

Abstract

Thirty years of research in the ponderosa pine and mixed conifer forests of the Sierra of California by Dunning and his associates have shown that previous methods of silviculture were not providing adequate restocking of pine. Analysis of records indicated a new approach was necessary. From this work, new procedures that gave most promise of success were formulated by Duncan Dunning. These procedures are techniques for applying unit area control in the ponderosa pine and mixed conifer forests.

Citation

Hallin, William E. 1954. Unit area control--its development and application. Misc. Pap. 16. Berkeley, CA: U.S. Department of Agriculture, Forest Service, California Forest and Range Experiment Station. 10 p.