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A Freezing Technique for Sampling Skeletal, Structureless Forest Soils
Author(s) -
Froehlich H. A.,
Miles D. W. R.
Publication year - 1986
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1986.03615995005000060050x
Subject(s) - soil water , sampling (signal processing) , particle size distribution , mineralogy , soil science , soil test , environmental science , organic matter , geology , particle size , chemistry , physics , paleontology , organic chemistry , detector , optics
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 N 2 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.