I just wanted to post two things. Spodosols are the best soil order and Spodosols are the best soil order. I do not give a damn about productivity, just look at that thing and tell me otherwise.
this post was submitted on 18 Jul 2024
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Likely dug with a machine. The white material, my guess, is sand. Nutrient deficient highly draining sand. The dark and uneven horizon line is where what usually is a water table that holds drainage in place. In areas where that water level fluctuates, usually seasonally, you can wind up with this kind of stark line in the soil.
The uneven horizon likely is due to organic material, like tree roots, diving down through the sand and in many cases dying and decomposing underground.
But there are a number of spodosols and they're formed a bit different from what causes em and I'm taking 10 year old coursework off the brain shelf to remember.