Class 9th
Geography
CHAPTER-3
DRAINAGE
Introduction
❖ Drainage’ is a term which describes the river system of an area.
❖ A river along with its tributaries is called a river system.
❖ A drainage basin or river basin is an area which is drained by a single river system.
❖ An upland that separates two drainage systems that are next to each other is called a water divide.
Drainage Systems in India
Himalayan Rivers Peninsular Rivers
1. These rivers are perennial in nature. 1. These rivers are seasonal in nature. They dry
up in summers as they are dependent upon
rainfall.
2. These rivers cause much erosion and have great 2. These rivers create much less erosion and
flow of water. also have weaker flow of water.
3. These rivers are meandering. 3. These rivers are straight.
4. These rivers originate in the Himalayas. 4. These rivers originate in small hills and
plateaus.
5. These rivers irrigate the northern plains. 5. These rivers irrigate the Deccan Plateaus.
6. Himalayan river basins are very fertile. 6. Peninsular river basins are not so very
fertile.
7. These rivers cover a very long distance. 7. These rivers cover a shorter distance.
8. The Ganga, The Indus, and the Brahmaputra are 8. The Narmada, The Tapi, The Mahanadi, The
the major Himalayan rivers. Godavari, The Krishna and The Kaveri are
the major Peninsular rivers.
The Himalayan Rivers
The major Himalayan rivers are the Indus, the Ganga and the Brahmaputra.
I. The Indus River System
➢ Indus is one of the longest rivers in the world, with a total length of 2900 km.
➢ The river Indus rises in Tibet near Lake Mansarovar.
➢ Its tributaries are the Zaskar, the Nubra, the Shyok and the Hunza and join the Indus in Kashmir.
➢ The Satluj, the Beas, the Ravi, the Chenab and the Jhelum join together to enter the Indus near Mithankot in
Pakistan.
Note: The Indus Water Treaty (1960) allows India to use 20 per cent of water carried by the Indus. This water is used
for irrigation activities in Punjab, Haryana and Rajasthan.
[1]
Geography
CHAPTER-3
DRAINAGE
Introduction
❖ Drainage’ is a term which describes the river system of an area.
❖ A river along with its tributaries is called a river system.
❖ A drainage basin or river basin is an area which is drained by a single river system.
❖ An upland that separates two drainage systems that are next to each other is called a water divide.
Drainage Systems in India
Himalayan Rivers Peninsular Rivers
1. These rivers are perennial in nature. 1. These rivers are seasonal in nature. They dry
up in summers as they are dependent upon
rainfall.
2. These rivers cause much erosion and have great 2. These rivers create much less erosion and
flow of water. also have weaker flow of water.
3. These rivers are meandering. 3. These rivers are straight.
4. These rivers originate in the Himalayas. 4. These rivers originate in small hills and
plateaus.
5. These rivers irrigate the northern plains. 5. These rivers irrigate the Deccan Plateaus.
6. Himalayan river basins are very fertile. 6. Peninsular river basins are not so very
fertile.
7. These rivers cover a very long distance. 7. These rivers cover a shorter distance.
8. The Ganga, The Indus, and the Brahmaputra are 8. The Narmada, The Tapi, The Mahanadi, The
the major Himalayan rivers. Godavari, The Krishna and The Kaveri are
the major Peninsular rivers.
The Himalayan Rivers
The major Himalayan rivers are the Indus, the Ganga and the Brahmaputra.
I. The Indus River System
➢ Indus is one of the longest rivers in the world, with a total length of 2900 km.
➢ The river Indus rises in Tibet near Lake Mansarovar.
➢ Its tributaries are the Zaskar, the Nubra, the Shyok and the Hunza and join the Indus in Kashmir.
➢ The Satluj, the Beas, the Ravi, the Chenab and the Jhelum join together to enter the Indus near Mithankot in
Pakistan.
Note: The Indus Water Treaty (1960) allows India to use 20 per cent of water carried by the Indus. This water is used
for irrigation activities in Punjab, Haryana and Rajasthan.
[1]
