Soil Profile Model/ Art integrated project/ Science Project/ Layer of Soil Project Step by Step
#soilprofile
#artintegratedproject
#scienceproject
#layersofsoil
Required Material-
1 empty cardboard box
2 A4 size white printout paper
light green & dark green piece of paper
dry branches
Poster colours ( brown, yellow ochre, orange, gray ( white + tint black), black )
black & red sketch pen
scissors
fevicol
Music: Glitter Blast
Musician: Kevin MacLeod
URL: filmmusic.io/s...
License: filmmusic.io/s...
Soil Profile Definition
“Soil profile is defined as the vertical section of the soil from the ground surface downwards to where the soil meets the underlying rock.”
*The O-Horizon
It is the upper layer of the topsoil which is mainly composed of organic materials such as dried leaves, grasses, dead leaves, small rocks, twigs, surface organisms, fallen trees, and other decomposed organic matter.
*The A-Horizon or Topsoil
The topsoil is soft and porous to hold enough air and water. In this layer, the seed germination takes place. This layer consists of microorganisms such as earthworms, fungi, bacteria, etc.
*The B-Horizon or Subsoil
It contains less humus, soluble minerals, and organic matter. It is a site of deposition of certain minerals and metal salts such as iron oxide.
*The C-Horizon or Saprolite
This layer is devoid of any organic matter and is made up of broken bedrock. This layer is also known as saprolite. The geological material present in this zone is cemented.
The R-Horizon
It is a compacted and cemented layer. Different types of rocks such as granite, basalt and limestone are found here.
21 окт 2024
