Soil compaction from ground-based thinning and effects of subsequent skid trail tillage in a Douglas-fir stand
By: by Johan Bryan Hogervorst.
Published: 1994
Language: eng
Number of pages: 83
Subjects: Logging -- Machinery -- Environmental aspects -- Oregon.; Douglas fir.; Plants, Effect of soil compaction on.
Notes: Typescript (photocopy).

"A paper submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Forestry, 1994.

Includes bibliographical references (leaves 46-49).