What is substratum?

What is substratum?

: an underlying support : foundation: such as. a : substance that is a permanent subject of qualities or phenomena. b : the material of which something is made and from which it derives its special qualities. c : a layer beneath the surface soil specifically : subsoil.

What is the substratum or Mantle?

the uppermost of the earth’s solid shells. The layer of the upper mantle which underlies the earth’s crust is often called the substratum.

What is the substratum in biology?

noun, plural: substrata. (1) A substrate, i.e. a surface in which the cell attaches to, especially when the cell is growing or moving. (2) A base or a solid surface in which living things (e.g. plants and certain animals like barnacles) adhere to while they grow. (3) The layer below or underneath another layer.

What is below the substratum?

Substratum refers to a layer below the surface. The term is often used in soil science and it refers to the layer that lies below the surface layer and the subsoil (see images below). Soils typically have three major horizons: the surface horizon, the subsoil below that, and then the substratum.

What is a substratum in philosophy?

A foundation or groundwork. 3. The material on which another material is coated or fabricated. 4. Philosophy The underlying characterless substance that supports attributes of material reality.

What is the substratum rule?

In linguistics, substratum refers to a language that influences or forms the basis for another language that later replaces it as the dominant language. …

What is a substratum in geography?

Substratum is the underlying layer, especially of rock or soil below the ground.

Where is the substratum located?

The substratum is below the surface layer and subsoil. It consists of material that has been somewhat modified by weathering but is relatively unchanged by soil-forming processes.

What is substratum in ecosystem?

The term substratum (pl. substrata) refers to the sediment at the sediment—water interface on and in which organisms live. It is a little less obvious for vagile benthic organisms; but most of these are also “tied” to the substratum by food preference or other ecological factors.

What is substratum in bryophyte?

The substratum on which a bryophyte grows can be a source of nutrients and other chemicals that may cause stresses. Substratum specificity and chemical specialisms are considered in some detail but aspects involving competition and population dynamics are now largely covered in Chapter 10 by Rydin.

Which layer of soil is called substratum?