Litter manipulation experiment Grinderwald - Bulk soil data from soil core samples

We conducted a litter manipulation experiment with 13C enriched beech litter at the Grinderwald research site, 40 km north of Hannover, Germany. The study site contains a more than 100 years old beech forest on a Dystric Cambisol. At 2 time points (11.2016, 05.2018), we took soil cores down to 180 cm soil depth and divided them in 15 depth increments. We analyzed all bulk samples for organic carbon, total nitrogen, the carbon isotopy, oxalate and dithionite extractable Fe, Al, and Mn. Further we conducted water extractions to determine the mobilizable carbon fraction. Research domain: Soil Sciences Research question: We studied the contribution of litter-derived carbon (C) in the formation of subsoil organic matter (OM).