Supplementary Material: Material Flow Analyses of 15 farms in Pontieba, Burkina Faso (STAN files)

The Supplementary Material includes all MFA results, including those for farms belonging to ALS types 2 and 3. All 15 MFAs are provided as STAN files. The interested reader can freely download the STAN software at http://stan2web.net/. Once STAN is installed, he or she can open the STAN file of a specific farm and view its nitrogen, phosphorus, and potassium flows by selecting the appropriate layer. He or she can further implement scenarios in STAN files, for instance the recycling of all organic nutrients and derive new values of indicators, e.g., those developed for ALSCA.