There are two data sets available, one covering all of Switzerland, and one without surfaces in the cantons Bern and Freiburg. The data sets are otherwise the same.

Licence information:

OrganicSoils_CH_2024 (10.5281/zenodo.14942864)
These data are published under the following licence: 
CC BY-SA 4.0  (https://creativecommons.org/licenses/by-sa/4.0/)

OrganicSoils_no_BE_FR_2024 (10.5281/zenodo.14942897)
These data are published under the following licence: 
CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)