An apparatus to measure the crosscut shearing strength of roots

Robert Ziemer

Treesearch

An apparatus to measure the crosscut shearing strength of roots

Informally Refereed

Authors:

Robert Ziemer

Year:

1978

Type:

Miscellaneous Publication

Station:

Pacific Southwest Research Station

Source:

Can. J. For. Research 8(1): 142-144.

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Download (PDF 333 KB): https://research.fs.usda.gov/download/treesearch/8687.pdf

Abstract

Loss of tree root strength after timber cutting is a principal mechanism leading to slope failure and landslides. Measurement of root shear strength changes can be useful in evaluating effects of logging on slope stability. The simple apparatus described measures shear strength directly on roots up to 50 mm diameter. Tests on live roots showed excellent correlation between measurements of shear strength and tensile strength.

Keywords

PSW4351, root strength, slope failure, landslides, logging, slope stabilit

Citation

Ziemer, Robert R. 1978. An apparatus to measure the crosscut shearing strength of roots. Can. J. For. Research 8(1): 142-144.