Physiographic Divisions of the Great Plains of India :-
- The great plains of India are remarkable homogenous surface with an imperceptable slope. In fact they are a featherless alluvial fertile plains formed mostly by the depositional process of the Himalayas and Vindhyan rivers.
- These rivers deposit enoroeno quantity of sediments along the foothills, beyond the foothills, the rivers deposit the alluiall in their flood plains. The Northern Plains of India may be divided into the following sub regions :
1. The Bhabar Plain :- It lies to the South of the Shiwaliks from the west to east (Jammu Division to Assam). It's width is , however, more in the western plains then in the Eastern plains of Assam. In width, the Bhabar tract is generally 8 to 15 km, consisting of gravel and unassorted sediment deposited by the river depending from the Himalayas and the Shiwaliks.
2. The Tarai Plains : South of the Bhabar tract infested with mosquitoes. The Tarai is more wide in the Eastern parts of the Great Plains, especially in Brahmputra Valley due to heavy rainfall.
3. The Bhangar (Bhanger) Plains : The Bhanger or older alluvial plain, represent the upland alluival tract of the Great Plains of India, formed by the older alluival. The Bhanger land lies above the load limits of the river Bhanger is generally a well drained and the most productive land of the great plains of India.
4. The Khadar Plains :- The new alluival tract along the courses of the river are also known as the "Khadar" or "Bet" lands. The Khadar tracts are enriched by fresh deposit of silt every year during the rainy season.
5. Delta Plains :- The delta plains of India are formed by deposition in the lower reaches the river.
Meso - Regions of the Northern Plains of India :-
- On the basis of geo - climatic and topographical characteristics, the Northern Plains of India may be devided into the following four meso - region.
- The plains of Rajasthan
- The Punjab Haryana Plains
- The Ganga Plains
- The Brahmaputra Plains
1. The Plains of Rajasthan :-
- They lie to the west the Aravallis and including the Marusthali and the Bhangar of Rajasthan. The Rajasthan plains cover a total area of about 175,000 sq. Km. This plain has a general slope from north - east to south - west.
2. The Punjab :-
- Haryana plains (total area 1.75 lakh sq km): The Punjab Haryana Plains is an aggrational plains, deposit by the Satluj, Beas, Ravi river. The Punjab Haryana Plains may be divided into :-
- The Bari - Doab between the Beas and Ravi.
- The Best Doab, between the Beas and Satluj.
- Rechan daoab between Ravi and Chenab.
- Chai Doab between Jheleum Indus River.
- Sindhu Sagar Doab between Jheleum Indus River.
- The plains are charcterized by the rehire streams called chosu ans regional bluffs along the Khaddar belt called bet.
