With the help of a diagram illustrate the soil profile
Answers
Answer:
Explanation:
SOIL PROFILE
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A vertical section of Earth reveals the different layers of the soil, which is known as soil profiling.
Different layers have been designated as soil horizons.
1) A - Horizon --- The uppermost, dark in colour, rich in humus are the characteristics of A - Horizon. It is the most important layer of soil which supports many animals and all plants to complete their life process. A - Horizon also provides the living habitat to the lower animals like worms, rodents, snakes, moles, etc. Humus [decomposing organic matters] makes the soil fertile which provides nutrients to the plant.
This top layer is generally soft, porous and can retain more water.
2) B - Horizon --- It is the middle layer which is comparatively more harder and compact than the upper A - Horizon. It is also having less amount of humus [organic nutrients] but more amount of inorganic nutrients like Magnesium, Iron, Sodium, Calcium, Potassium, etc.
3) C - Horizon --- It is made up of small lumps of rock with cracks and crevices.
Below Horizon - C is the Bed - Rock, which is hard and difficult to dig with spade.
* The rotting dead matter in soil is known as humus.