Use of the densiometer to estimate density of forest canopy on permanent sample plots.

Gerald S. Strickler

Treesearch

Use of the densiometer to estimate density of forest canopy on permanent sample plots.

Informally Refereed

Authors:

Gerald S. Strickler

Year:

1959

Type:

Research Note

Station:

Pacific Northwest Research Station

Source:

PNW Old Series Research Notes No. 180, p. 1-5

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Abstract

An instrument known as the spherical densiometer has been found adaptable to permanent-plot estimates of relative canopy closure or density in forest and range ecological studies. The device is more compact and simpler to use than previous ocular-type instruments. Because the instrument has a curved reflecting surface which results in observations from lateral as well as overhead positions, a problem of overlap in readings occurs when adaptation of the densiometer to permanent-plot work is attempted. Some modifications were developed to eliminate this difficulty.

Citation

Strickler, Gerald S. 1959. Use of the densiometer to estimate density of forest canopy on permanent sample plots. PNW Old Series Research Notes No. 180, p. 1-5