Microbial carbon recycling: an underestimated process controlling soil carbon dynamics - Part 2: A C3-C4 vegetation change field labelling experiment

• Published in: Biogeosciences Vol. 12; no. 21; pp. 6291 - 6299
• Main Authors: Basler, A, Dippold, M, Helfrich, M, Dyckmans, J
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 01.11.2015; Copernicus Publications
• Subjects: Biological activity; Carbon; Chromatography; Corn; Cultivation; Dynamics; Experiments; Fucose; Galactose; High performance liquid chromatography; High pressure; HPLC; Isotope ratios; Isotopes; Labeling; Liquid chromatography; Mass spectrometry; Mass spectroscopy; Microbial activity; Microorganisms; Organic carbon; Organic matter; Particulate organic matter; Plants; Recycling; Rhamnose; Saccharides; Sediments; Silt loam; Soil; Soil analysis; Soil dynamics; Soil organic matter; Soil stabilization; Soils; Stabilization; Sugar; Total organic carbon; Trifluoroacetic acid; Triticum aestivum; Vegetation; Wheat; Zea mays; Germany

The mean residence times (MRT) of different compound classes of soil organic matter (SOM) do not match their inherent recalcitrance to decomposition. One reason for this is the stabilization within the soil matrix, but recycling, i.e. the reuse of "old" organic material to form new biomass...