naa a22 4500 510737757 CHVBK 20180411083017.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11284-012-1022-9 doi (NATIONALLICENCE)springer-10.1007/s11284-012-1022-9 Gleixner Gerd Max Planck Institute for Biogeochemistry, POB 100164, 07701, Jena, Germany aut Soil organic matter dynamics: a biological perspective derived from the use of compound-specific isotopes studies [Elektronische Daten] [Gerd Gleixner] Current attempts to explain the persistence of carbon in soils focuses on explanations such as the recalcitrant plant residues and the physical isolation of substrates from decomposers. A pool of organic matter that can persist for centuries to millennia is hypothesized because of the evidence provided by the persistence of pre-disturbance C in fallow or vegetation change experiments, and the radiocarbon age of soil carbon. However, new information, which became available through advances in the ability to measure the isotope signatures of specific compounds, favors a new picture of organic matter dynamics. Instead of persistence of plant-derived residues like lignin in the soil, the majority of mineral soil is in molecules derived from microbial synthesis. Carbon recycled multiple times through the microbial community can be old, decoupling the radiocarbon age of C atoms from the chemical or biological lability of the molecules they comprise. In consequence is soil microbiology, a major control on soil carbon dynamics, which highlights the potential vulnerability of soil organic matter to changing environmental conditions. Moreover, it emphasizes the need to devise new management options to restore, increase, and secure this valuable resource. The Author(s), 2013 Compound-specific isotope ratios nationallicence 13C nationallicence 14C nationallicence Soil organic matter dynamics nationallicence Ecological Research Springer Japan 28/5(2013-09-01), 683-695 0912-3814 28:5<683 2013 28 11284 https://doi.org/10.1007/s11284-012-1022-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11284-012-1022-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Gleixner Gerd Max Planck Institute for Biogeochemistry, POB 100164, 07701, Jena, Germany aut NATIONALLICENCE 773 0- Ecological Research Springer Japan 28/5(2013-09-01), 683-695 0912-3814 28:5<683 2013 28 11284 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer