Soil mass and grind size used for sample homogenization strongly affect permanganate-oxidizable carbon (POXC) values, with implications for its use as a national soil health indicator
| Autor: | Candiss O. Williams, Richard P. Dick, Mirjam M. Pulleman, Rachel Creamer, Rich Ferguson, Skye Wills, Andrew J. Margenot, Diane G. Hooper |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Method quantitation limits
Soil Science 010501 environmental sciences complex mixtures 01 natural sciences chemistry.chemical_compound Analytical variability Grind Bodembiologie 0105 earth and related environmental sciences Soil health Active carbon Soil organic matter Soil mass Permanganate Soil Biology 04 agricultural and veterinary sciences PE&RC Marked effect chemistry National monitoring Environmental chemistry Soil water 040103 agronomy & agriculture Labile carbon 0401 agriculture forestry and fisheries Environmental science |
| Zdroj: | Geoderma 383 (2021) Geoderma, 383 |
| ISSN: | 0016-7061 |
| Popis: | Highlights • We quantified methodological effects on POXC values for a diverse set of soils across the USA. • No single soil mass × grind size combination provided POXC results within the method’s quantitation limits for all soils studied. • Soil mass and mesh size had a marked effect on POXC values. • The POXC method falls short as an analytical method for measuring a well-defined C pool. • Implications for the use of POXC as a national soil health monitoring are discussed. |
| Databáze: | OpenAIRE |
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