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प्रश्न
What are black soils? Describe their formation and characteristics.
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उत्तर
Black soils are formed by volcanoes. These soils are also known as the ‘Regur Soil’ or the ‘Black Cotton Soil’.
Features: The black soils are generally clayey, deep, and impermeable. They swell and become sticky when wet and shrink when dried. So, during the dry season, this soil develops wide cracks.
Thus, there occurs a kind of ‘self ploughing’. Because of this character of slow absorption and loss of moisture, the black soil retains the moisture for a very long time, which helps the crops, especially; the rain-fed ones, to sustain even during the dry season.
Chemical Composition: Chemically, the black soils are rich in lime, iron, magnesia, and alumina. They also contain potash. But they lack phosphorous, nitrogen, and organic matter. The colour of the soil ranges from deep black to grey.
Areas: Black soil covers most of the Deccan Plateau which includes parts of Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh, and some parts of Tamil Nadu. In the upper reaches of the Godavari and the Krishna, and the northwestern part of the Deccan Plateau, the black soil is very deep.
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संबंधित प्रश्न
Tick the most suitable answer in question
In addition to the rock particles, the soil contains
The water holding capacity is the highest in ___________.
List the differences between clayey soil and sandy soil.
With reference to black soil answer the following:
Give one chemical property of this soil.
Giver a geographical reason for the each of the following:
Alluvial soil differs in texture.
Give geographical reasons for the following:
Khadar is more fertile than banghar soil.
State the characteristic of each of the soils named below that makes them most suitable for crop cultivation:
Black Soil
State the characteristic of each of the soils named below that makes them most suitable for crop cultivation:
Red Soil
State the geographical term for each of the following processes:
The process by which rainwater, flowing in a definite path, removes the topsoil, thus causing deep cuts to the surface of the land.
Give the geographical reason for different regions in India having different kinds of soil.
Answer the following questions in about 30 words.
What steps can be taken to control soil erosion in the hilly areas?
Name the following :
An important transported soil of India.
Where are Alluvial Soils found in India?
How we define Soil from agricultural point of view?
Mention any two advantages of the Black Soil.
How is red soil formed?
How is Regur Soil formed? Mention four important features of Regur Soil.
Why is deltaic alluvium more fertile than coastal alluvium?
Alluvial soil of the northern plains and the alluvial soil on the coastal plains of India.
On the map of India, shade and name an area each of:
(a) Alluvial Soil,
(b) Red Soil,
(c) Desert Soil and
(d) Hill Soil or Mountain Soil.
Name the soil which
Covers the summits of the Eastern Ghats.
Name the soil which
Makes up the delta of the River Ganga.
Name one area where Laterite Soil is found in large-scale.
Give information on:
Measures of soil conservation.
Maharashtra -Types and Overall Distribution of Soil
Observe the map given above and answer the following questions:
- Which soil occupies most of the area in Maharashtra?
- In which areas are laterite soils found?
- Which soil is found in the river valleys of Maharashtra?
- Which soil is found in parts of the Sahyadri ranges?
- In which region is alluvial soil found?
Which one of the following is responsible for sheet erosion?
Which of the following soils has self-aeration capacity?
Availability of water and minerals in the soil for maximum absorption by roots is in the –
