Data for: Andic soil properties and tephra layers hamper C turnover in Icelandic peatlands - selective dissolution of Al, Fe, Si and decomposition proxies

Due to frequent volcanic activity and erosion of dryland soils, peatlands
in Iceland receive regular additions of mineral aeolian deposits
(tephra and eroded material). Therefore, their soils may develop not only
histic, but also andic characteristics. Here we present data sets
of a study that elucidates interactions between carbon characteristics and
andic soil properties in Histosols of three Icelandic peatlands. The data
sets contain information about the soil carbon structure derived by 13C
NMR spectroscopy, andic soil properties based on selective
dissolution of Al, Fe and Si, decomposition proxies C/N, δ13C and δ15N,
information on total carbon and nitrogen content, dry bulk density, soil
organic matter content and pH measured in deionised water and
NaF solution.