Sound absorption characteristics of tree bark and forest floor

G. Reethof; O. H. McDaniel; G. M. Heisler

Treesearch

Sound absorption characteristics of tree bark and forest floor

Informally Refereed

Authors:

G. Reethof, O. H. McDaniel, G. M. Heisler

Year:

1977

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Heisler, Gordon M.; Herrington, Lee P., eds. Proceedings of the conference on metropolitan physical environment; Gen. Tech. Rep. NE-25. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 206-217

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Abstract

Results of basic research on absorption of sound by tree bark and forest floors are presented. Amount of sound absorption by tree bark was determined by laboratory experiments with bark samples in a standing-wave tube. A modified portable standing-wave tube was used to measure absorption of sound by forest floors with different moisture contents, with and without leaf litter, and with and without moss growth. The implications of the results are discussed in terms of the amount and mechanisms of sound absorption by entire forests.

Parent Publication

Proceedings of the conference on metropolitan physical environment

Citation

Reethof, G.; McDaniel, O. H.; Heisler, G. M. 1977. Sound absorption characteristics of tree bark and forest floor. In: Heisler, Gordon M.; Herrington, Lee P., eds. Proceedings of the conference on metropolitan physical environment; Gen. Tech. Rep. NE-25. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 206-217