Practice exam #3 - QUESTION 6

a) Since there is Ah>10cm, bs > 80% where Ca is the dominant cation, has a massive texture lower in the soil, and maybe its a grassland, I said it belonged to Chernozemic soil order. It also has a Bg layer, so i guess it could also be a Gleyzolic but it doesnt state that the water table fluctuates, so I think Chernozemic is the best fit.

Bennett, consider what is dominant gleying or the Chernozemic Ah?

I'm confused why we can conclusively say that this soil is of the Gleysolic order - it has a Chernozemic A horizon and is in a grassland, and also fits the properties of a Gleysol. Is it possible for it to be both? Why does one take precedence over the other?

Thanks!