A global dataset of soil particulate organic carbon

The original data for this paper collected from publised papers, including soil paticulate organic carbon concentration, geographic information (latitude, longtidue), soil properties (soil type, soil texture, soil moisture, soil temperature,soil pH, bulk density, porosity,total organic carbon, total nitrogen, soil dissolved carbon, soil dissovled nitrogen, soil microbial biomass carbon, soil microbial biomass nitrogen), climatic information (mean annual air temperature, mean annual precipitation), vegetation type,  sampling dates and depth. A total of 3,418 data points were finally collected from the LUCAS database and 244 publications from 1988 to 2020. The database was divided into two groups: one group consists of 2,507 data points for topsoil (0 – 30 cm) in 632 sites and 911 data points for soil profile (0 – 100 cm) in 55 sites.

Methods
The data were collected from publications by searching “soil particulate organic carbon” in Web of Science and Google Scholar. We derived the data points from tables involving soil POC and/or extracted from figures vis the Engauge Digitizer software version 10.7.