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Abstract
Records of permanent sample plots and extensive observations by forest management research workers indicate that tree selection methods of cutting in sugar pine-fir types have not favored the establishment of sugar pine reproduction. Since sugar pine is a highly prized lumber producing species in the California region, special measures to preserve or increase its place in the stand were made part of an experimental logging project on the Stanislaus Experimental Forest in 1948 and 1949. This project was a combination field test and demonstration of unit area control, a silvicultural system for keeping the ground stocked with trees and producing at f'ull capacity. This paper describes the slash-disposal and site-preparation measures which are essential steps in establishing regeneration on chosen unit areas within the forest.
Citation
Gordon, D.T.; Cosens, R.D. 1952. Slash disposal and site preparation in converting old-growth sugar pine-fir forests to regulated stands. Res. Note 81. Berkeley, CA: U.S. Department of Agriculture, Forest Service, California Forest and Range Experiment Station. 7 p.