Why are the lower regions of the soil occupied by Kankar?

Why are the lower regions of the soil occupied by Kankar?

Lower horizons of the soil are occupied by ‘kankar’ layers because of the increased calcium content downwards. It limits the penetration of water, and when irrigation is made available, then the soil moisture is readily available for a sustainable plant growth.

Which soil the lower horizons are occupied by Kankar?

Why the lower horizons of arid soil are occupied by kankar.

What are the properties of arid soil?

Some important features of arid soil are:

• The soil red and brown in colour.
• It is sandy in texture.
• It is saline in nature and lacks humus and moisture.
• Arid soils contain a substantial amount of soluble salts.
• It is alkaline in nature because there is no rain to wash soluble salts.

What is arid soil?

(i) Arid soils are the soils of desert or semi-desert regions and colours varies from red to brown. (ii) The soil has sandy texture and salinity. As precipitation is very low the temperature is high and evaporation is faster making it lack in moisture and humus.

What does the Kankar layer formation restricts in the bottom horizons?

Due to its hard and tough texture infiltration of water becomes difficult.So,agriculture in such soils become challenging. Only after proper irrigation such soils become suitable for agricultural purposes.

Which region has the alluvial soil in India?

Alluvial soil is found in the regions of Indo-Gangetic plains, Punjab, Haryana, Uttar Pradesh, Bihar, West Bengal, Assam as well as in the northern parts of Gujarat.

What does the lower horizon of desert soil contain *?

The lower horizon of desert soil has kankars, which are deposits of calcium. They are formed due to the increasing downflow of calcium content.

Which one is wrong statement about arid soil?

The correct answer is The soil is rich in humus and moisture. The soil is rich in humus and moisture, this is an incorrect statement regarding arid Soil.

How do the arid soil become cultivable?

The soils contain a considerable amount of soluble salts. Due to dry climate and absence of vegetation, it also contains a very low percentage of organic matter. After proper irrigation, these soil become cultivable as has been in the case of western Rajasthan.

What is the major limiting factor in the arid areas of our country?

2.2. Water and precipitation are the main limiting factors affecting plant growth and survival in arid and semiarid regions. The adaptation characteristics of desert plants are all related to the use of water resources.

What is Kankar soil?

Kankar or kunkur is a sedimentological term derived from Hindi, occasionally applied in India and the United States to detrital or residual rolled, often nodular calcium carbonate formed in soils of semi-arid regions.

Which soil bottom layer of Kankar restricts the infiltration of water?

Answer: In the lower horizons of arid or deserty soils, kankar are found beacuse of increasing calcium content downwards, which restricts the infiltration of water.So, kankar restricts the infiltration of water.