Soils data unavailable

[mjstoroz]

The link in the ODD and JASSS paper to the soil productivity data does not reveal where the dataset comes from. Therefore, I suggest we implement the Heckbert's recommendation from his 2013 JASSS paper:

Heckbert 2013 - Future work will aim to replace the existing dataset with the Harmonized World Soil Database (FAO et al. 2009) for finer spatial resolution and consistency across country borders.

The link is available here:

https://www.fao.org/soils-portal/data-hub/soil-maps-and-databases/harmonized-world-soil-database-v12/en/