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    Author(s): Carl M. Berntsen
    Date: 1960
    Source: PNW Old Series Research Notes No. 197, p. 1-5
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (440 KB)


    When overmature conifers die and deteriorate gradually while standing, a mound of decayed wood builds up about the base of the stem. When such trees fall to the ground, similar material is laid down along the path where the tree fell. Further deterioration results in low mounds or ridges of decayed wood in a state of semi-incorporation with the soil. Depending on the state of decomposition, structure of this organic material may vary from cubical, crumbly yet identifiable wood remains to red-brown masses of finely divided material (fig. 1A).

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Berntsen, Carl M. 1960. Planting sitka spruce and Douglas-fir on decayed wood in coastal Oregon. PNW Old Series Research Notes No. 197, p. 1-5

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