Understory competition for resources in Pinus ponderosa forests of northeastern Oregon
By: by Gregg Mason Riegel.
Published: 1989
Language: eng
Number of pages: 189
Subjects: Ponderosa pine -- Oregon.; Forest plants -- Oregon.; Forest thinning.; Plant competition -- Oregon.
Notes: Typescript (photocopy).

Thesis (Ph. D.)--Oregon State University, 1990.

Includes bibliographical references.