Data from: Contributions of hypolithic communities to surface soil organic carbon across a hyperarid-to-arid climate gradient

Data accompany the publication "Contributions of hypolithic communities to surface soil organic carbon across a hyperarid-to-arid climate gradient", published in Geoderma. These data include line-point intercept data of percentage cover of different land cover classes and characteristics (dimensions, mass) of three different clast types (colonized quartz, uncolonized quartz, and non-quartz). Data on soil organic carbon of different cover types are also included.