The study looked at how different soil layers affect how water soaks into the ground. They used a model called MGAM to simulate this process in both lab and field settings. By changing the arrangement of soil layers, they found that the rate of water infiltration and the total amount of water that soaked in varied. In the lab, different soil textures didn't change the results, but in the field, the number of soil layers did affect how much water soaked in. Overall, the study showed that the structure of soil layers can impact how water moves through the ground.