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Acid Leaching

Acid leaching is something that makes soil in places where there are lots of trees. Dead leaves and needles fall from trees, rot on the ground and make what we call “leachable” products. These things remove nutrients from the top layer of soil and carry smaller clay pieces down below the ground. This is why the top layer of soil has less nutrients and feels rough. The bottom layer of soil has lots of clay and will soak up less water. The name that scientists use for this type of ground or soil is “Luvisolic” soils. These types of soils are found in the boreal forest and foothills regions of Alberta.