ISRIC has released a large set of standardised soil profile data for the world. It contains 4 million records for some 94 thousand profiles. The data are freely available from our website.
The data come from various sources. The provenance and licence strongly determined which data could be standardised and subsequently served to the international community.
Procedures for obtaining, checking, standardising, and serving the various source data were published in Earth System Science Data (17 February 2017), an open-access journal.