Question

11. Read the features of'a soil given below and name the related soil.
() It consists of properties of sand, silt and clay.
(u) It is described on the basis of age.
(ul) It is very fertile.

Answer 1

Answer:

alluvial soil because it is very fertile

Answer 2

The features of the soil given below explains the properties of alluvial soil.

Step by step explanation

• The alluvial soil is  developed by the deposition of the loads of the river as it flows from its upper to its lower course.  The soil is very thin and porous to use.
• 2. The soil is very fertile and  rich  in minerals, including potash and lime.It is perfect for the growth of variety of crops such as rabi and kharif crops.
• This type of soil can be found in often along the rivers and is transported by its rivers during the weathering of the minerals and rocks. The soil is typically covered by trees and bushes and forestry, as well as a variety of crops .
• Alluvial soil has geological subdivisions such as  Bhabar, bhangar, khadar and terai are the  divisions of alluvial soils.

Bhabar:

It is found in Zone south of the Lower Himalayas and the Sivalik Hills in the province of Uttarakhand, India. This is an alluvial overcoat of sand washed down from the Sivaliks on the northern edges  of the Indo-Gangetic Plain.

It is constitutes of pebble-shaped minerals in the form of soft beds. The  permeability  of the soil, the streams dissolve and flow underground.  These lands are not suitable for the purpose of agriculture.

Bhangar:

It covers the  major portion of the Northern Plains it is formed from old alluvial soil. This soil is not so fertile and it cannot be used for cultivation purpose. Usually the soil in this area ancient alluvial soil. It comprise  of  calcareous deposits known locally as ' Kankar.

Khadar:

The floodplains produced by younger alluvium are called khadars. These regions are usually flooded areas  The soil in this field is refreshed every year and is therefore highly fertile.    They may be used for the purpose of agriculture.

Terai :

It lies to the south of the Bhabar. It is around 20 to 30 km .  Many parts of these regions are reclaimed for the purpose of agriculture. Usually the soil in this region is  swampy lowland with silky soils.The soil in this region is soils are rich in nitrogen and organic matter but low in phosphate. They are  are usually covered by tall grasses and trees, but are suitable for a variety of crops such as wheat, rice, cane, jute, etc.

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