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This article in SSSAJ

  1. Vol. 50 No. 6, p. 1640-1642
    Received: Jan 7, 1986

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A Freezing Technique for Sampling Skeletal, Structureless Forest Soils1

  1. H. A. Froehlich and
  2. D. W. R. Miles2



A technique was developed to take large undisturbed samples in forest soils with high coarse-fragment content. Each sampling site was wetted with water, a metal pin was driven into and carefully removed from the soil, and liquid N2 was poured into the resulting hole. A frozen sample up to 200 mm in diam and 450 mm deep could be excavated and transported frozen to the laboratory. This sampling technique allowed measurement of bulk density, particle size distribution, and organic matter characteristics. The large size of the samples permitted sampling of soils with coarse fragments up to 85 mm in diam.

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