Comparison of chemical fractionation methods for isolating stable soil organic carbon pools
作者： M. Helfrich , H. Flessa , R. Mikutta , A. Dreves , B. Ludwig
DOI: 10.1111/J.1365-2389.2007.00926.X
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摘要: Stable soil organic matter (SOM) is important for long‐term sequestration of soil organic carbon (SOC), but the usefulness of different fractionation methods to isolate stable SOM is open to question. We assessed the suitability of five chemical fractionation methods (stepwise hydrolysis, treatment with H2O2, Na2S2O8, NaOCl, and demineralization of the NaOCl‐resistant fraction (NaOCl+ HF)) to isolate stable SOM from soil samples of a loamy sand and a silty loam under different land use regimes (grassland, forest and arable crops) …
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