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An Organic Carbon‐Organic Matter Conversion Equation for Pennsylvania Surface Soils
Author(s) -
Ranney R. W.
Publication year - 1969
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/sssaj1969.03615995003300050049x
Subject(s) - organic matter , soil water , total organic carbon , ashing , environmental chemistry , soil organic matter , chemistry , carbon fibers , dissolved organic carbon , soil carbon , environmental science , soil science , materials science , organic chemistry , physics , quantum mechanics , composite number , composite material
Low temperature ashing was used to determine the organic matter content of soils by weight loss. This technique utilizes oxygen excited by radiofrequency energy to effect oxidation at relatively low temperatures. Ashing at 375C was used for samples high in organic matter. Corrections were applied for weight loss of inorganic constituents and for incomplete oxidation of organic matter. The following regression equation was developed to convert organic carbon percent to organic matter percent in Pennsylvania surface soils: Percent organic matter = 0.35 + 1.80 × percent organic carbon.