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Articles by M. T. Rogers

Category : Article

article id 4673, category Article

M. T. Rogers. (1957). Ring-shadows. Silva Fennica no. 93 article id 4673. https://doi.org/10.14214/sf.a9120

Keywords: diameter increment; growth rings; research methods

Abstract | View details | Full text in PDF | Author Info

A picture of growth rings of a tree can be obtained on paper by placing it over a disc of a trunk or stump and rubbing it with a pencil. The ‘shadows’, while not yielding the complex data obtainable from the actual wood, do show the proportion of the growth rings composed of spring wood and the denser summer wood. It is possible to collect large amount of data by using an unexperienced staff cheaply and quickly, and the samples may be mailed at little expense. The method may be used to study the previous cuttings of a stand from stumps. The shadowing of tree rings is possible to do even from rather decayed stumps.

The article includes a Finnish abstract.

Rogers, E-mail: mr@mm.unknown

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