I want to evaluate runoff using Hydrus-1D. I know that Hydrus treats as runoff all the water that exceed the infiltration capacity. I also know the in real world runoff is a function of surface acclivity.
My question is: in real world, is the infiltration capacity a function of surface acclivity? When I have runoff (in a slope), is the superficial layer of soil always satured?
If infiltration capacity is not a function of surface acclivity, why runoff amount is a function of this factor?
Thanks and by
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