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Root turnover is an important carbon flux component in grassland ecosystems because it replenishes substantial parts of carbon lost from soil via heterotrophic respiration and leaching. Among the various methods to estimate root turnover, the root's radiocarbon signature has rarely been applied to grassland soils previously, although the value of this(More)
Present concepts emphasize that substrate quality exerts an important control over substrate decomposability and temperature sensitivity of heterotrophic soil respiration (Rh). In this context, soil organic matter (SOM) quality is defined by its molecular and structural complexity and determines the ease by which substrate is oxidized. However, temperature(More)
We used differential scanning calorimetry (DSC) to infer thermal properties of soil organic matter (SOM) in the static fertilization experiment in Bad Lauchstädt, Ger-many, which has been established in 1902. Four treatments (null N, change from null to manuring in 1978 NM, change from manuring to null in 1978 MN, and permanent manure and mineral(More)
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