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Soil nutrient contents and organic carbon (C) stability are key indicators for restoration of degraded grassland. However, the effects of long-term active restoration of extremely degraded grassland on soil parameters have been equivocal. The aims of this study were to evaluate the impact of active restoration of degraded alpine grassland on: (a) soil organic matter (SOM) mineralization; and (b) the importance of biotic factors for temperature sensitivity (Q 10) of SOM mineralization. Soils were sampled from intact, degraded and restored alpine grasslands at altitudes ranging between S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section. How to cite this article: Bai Y, Ma L, Degen AA, et al. Longterm active restoration of extremely degraded alpine grassland accelerated turnover and increased stability of soil carbon.

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