Indus River
From Free net encyclopedia
Image:Indus.jpg The Indus, known in Sanskrit and Hindi as the Sindhu and in Tibetan as the Sengge Chu ('Lion River'), is the longest and one of the most important rivers in South Asia. Originating in the Tibetan plateau in the vicinity of Lake Mansarovar, the river runs a course through Kashmir in both India and Pakistan, and in a southernly direction along the entire length of Pakistan to merge into the Arabian Sea. Figures for the total length of the river vary between 2,900 and 3,200 kilometres. The river has a total drainage area exceeding 450,000 square miles. The river's estimated annual flow stands at around 207 billion cubic metres. Beginning at the heights of the world with glaciers, the river feeds the ecosystem of temperate forests, plains and arid countryside. Together with the rivers Chenab, Ravi, Sutlej, Jhelum, Beas and the extinct Sarasvati River, the Indus forms the Sapta Sindhu (Seven rivers) delta in the Sindh province of Pakistan. It has 20 tributaries.
The Indus was the primary support and base of the Indus Valley Civilization - one of the three earliest civilizations in world history - which arose along its course. The Rigveda (c. 1500 BCE) first mentions the river. The Indus is the English name derived from Sindus in Latin, which itself is derived from the Sanskrit name Sindhu. The name India is derived from the root of the river's name. The region through which it passes prior to entering the sea is named Sindh - home to ancient kingdoms, now a province in Pakistan. The river is considered sacred in Hinduism - the term Hindu itself is derived from Sindhu - and is worshipped by Hindus. The Indus provides the key water resources for the economy of Pakistan - especially the breadbasket of Punjab province, which accounts for most of the nation's agricultural production, and Sindh. It also supports many heavy industries and provides the main supply of potable water in Pakistan.
Contents |
The Indus river system
Image:Indus.A2002274.0610.1km.jpg Image:Indus River Delta.jpg The ultimate source of the Indus is actually in Tibet; it begins at the confluence of the Sengge and Gar rivers that drain the Nganglong Kangri and Gangdise Shan mountain ranges. The Indus then flows northwest through Ladakh-Baltistan into Gilgit, just south of the Karakoram range. The Shyok, Shigar and Gilgit streams carry glacieral waters into the main river. It gradually bends to the south, coming out of the hills between Peshawar and Rawalpindi. The Indus passes gigantic gorges (15,000-17,000 feet) near the Nanga Parbat massif It swiftly flows across Hazara, and is dammed at the Tarbela Reservoir. The Kabul River joins it near Attock. The remainder of its route to the sea is in plains of the Punjab and Sind, and the river becomes slow-flowing and highly braided. It is joined by Panjnad river at Mithankot. Passing by Hyderabad, it ends in a large delta to the east of Karachi.
The Indus is, by volume, the largest exotic river (one that mainly flows through a country from which it receives no water) in the world. It is one of the few rivers in the world that exhibit a tidal bore. The Indus system is largely fed by the snows and glaciers of the Karakoram, Hindu Kush and Himalayan ranges of Tibet and Kashmir. The flow of the river is also determined by the seasons - it diminishes greatly in the winter, while flooding its banks in the monsoon months from July to September. There is also evidence of a steady shift in the course of the river since prehistoric times - it deviated westwards from flowing into the Rann of Kutch.
Tributaries
The Delta
The Indus River Delta occurs where the Indus River flows into the Arabian Sea in Pakistan. The delta covers an area of about 16,000 square miles (41,440 sq km), and is approximately 130 miles across where it meets the sea. Unlike many other deltas, the Indus River Delta consists of clay and other infertile soils, and is very swampy. The delta receives between 10 and 20 inches of rainfall in a normal year.
Pakistans fifth largest city, Hyderabad, lies about 130 miles north of the mouths of the Indus. Towns are found throughout the delta, but there are no large cities on the delta south of Hyderabad. Karachi, Pakistan's largest city, lies west of the delta on the coast of the Arabian Sea. Average temperatures for the delta region in July range from 70 - 85 °F, and 50 - 70 °F in January. The Indus River Delta is an important region for migrating water birds, and is an area rich in freshwater fauna. Fish found in the delta include the Hilsa, Indus baril, Indus garua (a catfish), the giant snakehead, golden mahaseer and the Rita catfish.
History
Image:Indus sites.png Template:Main Presence of Stone Age men has been discovered in Pothohar in the form of stone tools of Soan Culture. The Indus Valley Civilization was one of the three earliest civilizations of the ancient world, the other two being Sumer (in Mesopotamia/Iraq) and ancient Egypt. The major cities of the Indus Valley civilization, such as Harappa and Mohenjo Daro, date back to around 3300 BC, and represent some of the largest human habitations of the ancient world. The Civilization was extended from Balochistan to Gujarat, with an upward reach to the Punjab from east of River Jhelum to Rupar on the upper Sutlej. The coast settlements extended from Sutkagan Dor at Iranian border to Lothal in Gujarat. There is an Indus site on the Oxus river at Shortughai in northern Afghanistan (Kenoyer 1998:96), and the Indus site Alamgirpur at the Hindon river is located only 28 km from Delhi (S.P. Gupta 1995:183). It is also conjectured that some of the Vedas, the holiest books of Hinduism were composed in settlements near its banks.
In ancient Gandhara, the home of earlier Aryans, evidence of cave dwellers dated 15,000 years ago has been discovered at Mardan. Settlements of Gandhara grave culture of early Indo-Aryans flourished in this part of Pakistan from 1700 to 600 BCE, when Mohenjo Daro and Harappa had already been abandoned. To date, over 1,052 cities and settlements have been found, mainly in the general region of the Ghaggar-Hakra River and its tributaries. Among the settlements were the major urban centers of Harappa and Mohenjo-daro, as well as Lothal, Dholavira, Ganeriwala, and Rakhigarhi. Additionally, there is some disputed evidence indicative of another large river, now long dried up, running parallel to and east of the Indus River. The dried-up river beds overlap with the Hakra channel in Pakistan, and the seasonal Ghaggar River in India. Over 500 ancient sites belonging to the civilization have been discovered along the Ghaggar-Hakra River and its tributaries (S.P. Gupta 1995: 183). In contrast to this, only 90 to 96 of the over 800 known Indus Valley sites have been discovered on the Indus and its tributaries.
The Indus has formed a natural boundary between the Indian hinterland and its frontier with Afghanistan and Iran. It has been crossed by the armies of Alexander the Great - Greek forces retreated along the southern course of the river at the end of the Indian campaign. The Indus plains have also been under the domination of the Persian empire and the Kushan empire. The Muslim armies of Muhammad bin Qasim, Mahmud of Ghazni and Babur also crossed the river to strike into the inner regions of Gujarat, Punjab and Rajputana.
Climate
The Indus delta is one of the driest in the Indian subcontinent, lying just to the west of the Thar Desert of Rajasthan. The upper valley of the Indus receives 4-8 inches of rainfall in the winter months owing to northwestern winds. The mountainous region in Kashmir and northern Pakistan receives a large amount of precipitation in the form of snow. Annual temperatures fall below freezing in the northern mountainous regions in the winter, while exceeding 100 degrees Fahrenheit in the plains of Punjab and Sindh in the summer. Jacobabad, which is one of the hottest spots in the world, lies to the west of the river in Sindh.
Wildlife
Accounts of the Indus valley from the times of Alexander's campaign indicate a healthy forest cover in the region, which has now considerably receeded. The Mughal Emperor Babar writes of encountering rhinoceroses along its bank in his memoirs (the BaberNameh). Extensive deforestation and human interference in the ecology of the Shivalik Hills has led to a marked deterioration in vegetation and growing conditions. The Indus valley regions are arid with poor vegetation. Agriculture is sustained largely due to irrigation works.
The Indus River Dolphin is a sub-species of Dolphins found only in the Indus River. It formerly also occurred in the tributaries of the Indus river. Palla fish (Hilsa ilisha) of the river is a delicacy for people living along the river. The population of fishes in the river is moderate, with Sukkur, Thatta and Kotri being the major fishing centres - all in the lower Sindh course. But damming and irrigation has made fish farming an important economic activity. Located southeast of Karachi, the large delta has been recognised by conservationists as one of the world's most important ecological regions. Here the river distributes into many marshes, streams and creeks and meets the sea at shallow levels. Here marine fishes are found in abundance, including pomfret and prawns.
Economy
The Indus is the most important supplier of water resources to the Punjab and Sindh plains - it forms the backbone of agriculture and food production in Pakistan. The river is especially critical as rainfall is meagre in the lower Indus valley. Irrigation canals were first built by the peoples of the Indus valley civilization, and later by the engineers of the Kushan empire and the Mughal empire. Modern irrigation was introduced by the British East India Company in 1850 - the construction of modern canals accompanied with the restoration of old canals. The British supervised the construction of one of the most complex irrigation networks in the world. The Guddu Barrage is 4,450 feet long - irrigating Sukkur, Jacobabad, Larkana and Kalat. The Sukkur Barrage serves over five million acres (20,000 km²).
After partition, the Pakistan Water and Power Development Authority undertook the construction of the Chashma-Jhelum link canal - linking the waters of the Indus and Jhelum rivers - extending water supplies to the regions ofBahawalpur and Multan. Pakistan also constructed the Tarbela Dam near Rawalpindi - standing 9,000 feet long and 470 feet high, with a 50 mile-long reservoir. The Kotri Barrage near Hyderabad is 3,000 feet long and provides additional supplies for Karachi. The Taunsa Barrage near Dera Ghazi Khan produces 100,000 kilowatts of electricity. The extensive linking of tributaries with the Indus has helped spread water resources to the valley of Peshawar, the Northwest Frontier Province. The extensive irrigation and dam projects provide the basis for Pakistan's large production of crops such as cotton, sugarcane and wheat. The dams also generate electricity for heavy industries and urban centres.
People
Image:Indus near Skardu.jpg The inhabitants of the regions through whom the Indus river passes and forms a major natural feature and resource are diverse in ethnicity, religion, national and linguistic backgrounds. On the northern course of the river in Kashmir live the Buddhist people of Ladakh, of Tibetan stock, with Kashmiris who practise both Islam and Hinduism. As it descends into Pakistan, the Indus river forms a distinctive boundary of ethnicity and cultures - upon the western banks the population is largely Pashtun, Balochi, and of other Afghan stock, with close cultural, economic and ethnic ties to Iran and Afghanistan. The eastern banks are largely populated with peoples of the Punjabi stock, with smaller populations of Sindhis and people from regions in modern India. In northern Punjab and the NWFP, Pathan peoples and ethnic Pashtun tribes live alongside Punjabi peoples. In the southern portion of the Punjab province, the Serakai peoples speak a distinctive tongue and practise distinctive traditions. In the province of Sindh, peoples of Sindhi, Gujarati, Punjabi and Urdu-speaking Mohajir backgrounds form the local populations. Upon the western banks of the river live the Balochi and Pashtun peoples of Balochistan.
Modern issues
Due to its location and vast water resources, Indus is a strategically vital resource for Pakistan's economy and society. The river is also sacred for Hindus in both India and Pakistan, and India's control of the river in its Kashmir course has created conflict for the use of the river's resources between the two nations.
Indus Waters treaty
Template:Main After the partition of India in 1947, the use of the waters of the Indus and its five eastern tributaries became a major dispute between India and Pakistan. The irrigation canals of the Sutlej valley and the Bari Doab were split - with the canals lying primarily in Pakistan and the headwork dams in India - disrupting supply in some parts of Pakistan. The concern over India building large dams over various Punjab rivers that could undercut the supply flowing to Pakistan, as well as the possibility that India could divert rivers in the time of war, caused political consternation in Pakistan. Holding diplomatic talks brokered by the World Bank, India and Pakistan signed the Indus Waters Treaty in 1960. The treaty gave India the control of the three easternmost rivers of the Punjab, Sutlej, Beas and the Ravi, while Pakistan gained control of the three western rivers, Jhelum, Chenab and the Indus. India retained the right to use of the western rivers for non irrigation projects. (See discussion regarding a recent dispute about a hydroelectric project on the Chenab (not Indus) known as the Baghlighar project).
Pilgrimage
Hindu pilgrimage to holy sites alongside the river has been a source of conflict between the nations. Pakistan does not generally allow Indian citizens to visit the country for religious purposes, and Hindu worship of its most important river has provoked the consternation of Muslim extremists. However, owing to the volatile nature of bilateral relations, most pilgrimage and religious ceremonies are performed by Hindus in Kashmir.
Conservation
There are concerns that extensive deforestation, industrial pollution and global warming are affecting the vegetation and wildlife of the Indus delta, while affecting agricultural production as well. There are also concerns that the Indus river may be shifting its course westwards - although the progression spans centuries. On numerous occasions, Water-clogging owing to poor maintenance of canals has affected agricultural production and vegetation. In addition, extreme heat has caused water to evaporate leaving salt deposits that render lands useless for cultivation.
References
- This article incorporates text from the Encyclopædia Britannica Eleventh Edition{{#if:{{{article|}}}| article {{#if:{{{url|}}}|[{{{url|}}}}} "{{{article}}}"{{#if:{{{url|}}}|]}}{{#if:{{{author|}}}| by {{{author}}}}}}}, a publication now in the public domain.
- World Atlas, Millennium Edition, pg 265.
- Jean Fairley, "The Lion River", Karachi, 1978
External links
- Bibliography on Water Resources and International Law See Indus River. Peace Palace Libray
- Northern Areas Development Gateway
- The Mountain Areas Conservancy Project
- Indus River watershed map (World Resources Institute)
- Indus Treaty
- Baglihar Dam issue
- Indus
- Indus Wildlife
Template:SouthAsiaWaters Template:GeoSouthAsiaca:Indus cs:Indus da:Indus de:Indus et:Indus el:Ινδός es:Río Indo eo:Induso fr:Indus ko:인더스 강 hi:सिन्धु नदी it:Indo he:נהר האינדוס lv:Inda lt:Indas mr:सिंधु नदी nl:Indus (rivier) ja:インダス川 no:Indus pl:Indus pt:Indo ru:Инд (река) sa:सिन्धु नदी sd:سنڌو sk:Indus fi:Indus sv:Indus ta:சிந்து நதி vi:Sông Ấn Độ zh:印度河