[Tharkun]

From what I understand, it can sequester carbon because its roots run pretty deep. But then what? Won't the soil become saturated with carbon? Or isn't that an issue?

[dharma1]

That's right, and you won't have the carbon emissions that happen right now with annual grains from tillage/erosion/too much fertiliser.

Soil has a carbon budget but I'm not sure saturation is an issue - that's basically how grasslands work today