What is the soil? ...

What is considered a blockade?
Answers:    There are different layers to the soil - call horizons. In a forest, there is commonly an organic cloak overtop of the soil. This is the area where on earth things decompose - from a division where you can see the roots and leaves that own fallen, and their structure, to the lower life layer where on earth you can't really see much of anything structurally but it's usually dark black and smells outstandingly organic. Below that, depending on the type of soil you're looking at (e.g. brunisolic, luvisolic..etc - which is determined base on how it was formed) you would enjoy the first mineral soil (contains NO organic material) denoted by an A. The subsequent layer could be a B level which has a different texture. The texture is determine by the amount of sand, silt and clay the soil contains and habitually causes the separation of the horizons. If you be to dig a soil pit surrounded by a forest, you would see the different horizons - due to colour change possibly, texture regulation, gleying (mottling)..etc. The last deposit in soils is the C level which is the 'parent material' but altered.

Anyway, that is a VERY deep-seated introduction to soils.... take a class in the order of it! It's really fascinating!

Cheers
Should i put burlap around my evergreens and...
Soil. dirt. land. The organic and mineral decomposed leavings of everything that come before. Which within turn feeds the plants that live immediately.