Question

briefly explain soil horizons.... with diagram ​

Answer 1

$\textbf{\large{\underline{Answer :-}}}$

The layers of soil are called soil horizons. The the arrangement of these verizon's is known as soil profile.

• Soil horizons different properties of colour and texture of the soil as well as structure and thickness of the horizon.

• The horizon unnamed using the letters O, A, E, B and C.

$\textbf{\large{\underline{The O Horizon :}}}$

• The O horizon is a layer of decomposing organic material on the surface of the soil.

• It is prominently found in areas where there is an accumulation of leaves and trucks fallen from the trees.

• It is dominant in forest areas.

$\textbf{\large{\underline{The A Horizon :}}}$

• The A - Horizon is the surface Horizon, it is also known as topsoil.

• It largely consists of sand, silt and clay.

• It shows presence of organic matter as well.

• This Horizon is predominant in the surface layer of soils in grasslands and agricultural lands.

• The top soil is absolutely essential for plant growth and is home to several insects, worms and microbes that is usually dark brown in colour.

$\textbf{\large{\underline{The E Horizon :}}}$

• The E - Horizon is a subsurface Horizon that is usually found between the A and B Horizons.

• It is you really devoid of any nutrients and mostly consists of sand and soil particles.

• The E - Horizon is typically light in colour.

$\textbf{\large{\underline{The B Horizon :}}}$

• The B - Horizon is present below the topsoil.

• It is also known as subsoil.

• The water percolated through the upper Horizon carries soluble minerals and nutrients to the B Horizon.

• Thus, the sub soil is rich in nutrients which is why the roots of the plants grow till the subsoil.

$\textbf{\large{\underline{The C - Horizon : }}}$

• The C - Horizon is the layer of loosely packed parent material.

• It is the least weathered horizon.

• Roots of a plant cannot penetrate this layer.

• The C - Horizon does not contain any organic material.

• The primary function of the C - Horizon is collection of rainwater percolating through the above layers.

• The water stored in C - Horizon as groundwater.

Answer 2

${\huge{\mathcal{\underline{\underline{\star{SALUT :) {\star}}}}}}}$

O Horizon =

• The horizon where HUMUS or dead organic matter is there.

• It is found in damp Forests.

A Horizon =

• Topsoil is the another name for this.

• It is important for growth of Healthy plants and has dark brown color.

C Horizon =

• Has the big big Rocks which are not weathered.

• The water from rain is settled in this Horizon.

B Horizon =

• Subsoil is its another name.

• it has many minerals and nutrients.

E Horizon =

• Light colored particles of soil aee present here.

• Doesn't contain any nutrients.