This original dataset is the product of an incubation experiment aimed at investigating the effect of the incubation-induced accumulation of mineral nitrogen on soil respiration. The article is published:González-Domínguez, B., Studer, M. S., Hagedorn, F., Niklaus, P. A. & Abiven, S. Leaching of soils during laboratory incubations does not affect soil organic carbon mineralisation but solubilisation. PLoS One 12, e0174725 (2017).File format: .csv<br