The model Cycles simulates agricultural productivity (grain, forage and biomass yield) and the water, carbon and nitrogen balance of soil-crop systems subject to different climate, soil and management constraints. The Cycles-L (L stands for landscape) version simulates these processes at a watershed-scale and includes water and nutrient transport through surface, groundwater, and streams. A description of Cycles-L can be found here: https://doi.org/10.1029/2022WR033453
CropSyst is a simulation model jointly supported and developed by Claudio Stöckle (Project Leader), Roger Nelson, and Armen Kemanian.