Mesopotamian Marshes
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The Mesopotamian Marshes, also known as the Iraqi Marshes, are a
wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...
area located in southern
Iraq Iraq, officially the Republic of Iraq, is a country in West Asia. It is bordered by Saudi Arabia to Iraq–Saudi Arabia border, the south, Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq border, the east, the Persian Gulf and ...
and southwestern
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
as well as partially in northern Kuwait. The marshes are primarily located on the floodplains of the
Euphrates The Euphrates ( ; see #Etymology, below) is the longest and one of the most historically important rivers of West Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia (). Originati ...
and
Tigris The Tigris ( ; see #Etymology, below) is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian Desert, Syrian and Arabia ...
rivers bound by the cities of
Basra Basra () is a port city in Iraq, southern Iraq. It is the capital of the eponymous Basra Governorate, as well as the List of largest cities of Iraq, third largest city in Iraq overall, behind Baghdad and Mosul. Located near the Iran–Iraq bor ...
,
Nasiriyah Nasiriyah ( , ; , BGN: , ), also spelled Nassiriya or Nasiriya, is a city in Iraq, the capital of the Dhi Qar Governorate. It lies on the lower Euphrates, about south-southeast of Baghdad, near the ruins of the ancient city of Ur. Its po ...
,
Amarah Amarah (), also spelled Amara, is a city in south-eastern Iraq, located on a low ridge next to the Tigris River waterway south of Baghdad about 50 km (31 mi) from the border with Iran. It lies at the northern tip of the marshlands between ...
and a portion of southwestern Iran and northern
Kuwait Kuwait, officially the State of Kuwait, is a country in West Asia and the geopolitical region known as the Middle East. It is situated in the northern edge of the Arabian Peninsula at the head of the Persian Gulf, bordering Iraq to Iraq–Kuwait ...
(particularly Bubiyan Island). Historically the
marsh In ecology, a marsh is a wetland that is dominated by herbaceous plants rather than by woody plants.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p More in genera ...
lands, mainly composed of the separate but adjacent Central, Hawizeh and Hammar Marshes, used to be the largest wetland
ecosystem An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and en ...
of western
Eurasia Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents d ...
. The unique wetland landscape is home to the Marsh people, who have developed a unique culture tightly coupled to the landscape – harvesting reeds and rice, fishing, and herding
water buffalo The water buffalo (''Bubalus bubalis''), also called domestic water buffalo, Asian water buffalo and Asiatic water buffalo, is a large bovid originating in the Indian subcontinent and Southeast Asia. Today, it is also kept in Italy, the Balkans ...
. Draining of portions of the marshes began in the 1950s and continued through the 1970s to reclaim land for agriculture and oil exploration. In the late 1980s and 1990s, during the presidency of
Saddam Hussein Saddam Hussein (28 April 1937 – 30 December 2006) was an Iraqi politician and revolutionary who served as the fifth president of Iraq from 1979 until Saddam Hussein statue destruction, his overthrow in 2003 during the 2003 invasion of Ira ...
, this work was expanded and accelerated to evict Marsh people from the marshes. Before 2003, the marshes were drained to 10% of their original size. After the American overthrow of Hussein in 2003, the marshes have partially recovered but drought along with upstream dam construction and operation in
Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...
,
Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...
and Iran have hindered the process. Since 2016 the Mesopotamian marshes have been listed as an
UNESCO Heritage Site World Heritage Sites are landmarks and areas with legal protection under an international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural heritag ...
.


Geography

As their name suggests, the Mesopotamian Marshes are located in the larger region of
Mesopotamia Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia is known as present-day Iraq and forms the eastern geographic boundary of ...
. Originally covering an area of and divided into three major areas, the Central Marshes lie between the Tigris and Euphrates, while the Hammar Marshes lie south of the Euphrates and the Hawizeh Marshes are bound east of the Tigris. Before the 2003 Invasion of Iraq, about 90% of the marshes had been drained. The marshes lie on a flat
alluvial plain An alluvial plain is a plain (an essentially flat landform) created by the deposition of sediment over a long period by one or more rivers coming from highland regions, from which alluvial soil forms. A ''floodplain'' is part of the process, bei ...
, as the Euphrates decreases only in elevation during its last while the Tigris falls . This delta provides an environment that allows the Tigris and Euphrates to
meander A meander is one of a series of regular sinuous curves in the Channel (geography), channel of a river or other watercourse. It is produced as a watercourse erosion, erodes the sediments of an outer, concave bank (cut bank, cut bank or river cl ...
, forming
distributaries A distributary, or a distributary channel is a stream channel that branches off and flows a main stream channel. It is the opposite of a ''tributary'', a stream that flows another stream or river. Distributaries are a result of river bifurca ...
. The Euphrates has often terminated near
Nasiriyah Nasiriyah ( , ; , BGN: , ), also spelled Nassiriya or Nasiriya, is a city in Iraq, the capital of the Dhi Qar Governorate. It lies on the lower Euphrates, about south-southeast of Baghdad, near the ruins of the ancient city of Ur. Its po ...
into the Hammar Marshes as its flow slows. The Tigris can distribute some of its flow into the Central and Hawizeh marshes as it slows near
Amarah Amarah (), also spelled Amara, is a city in south-eastern Iraq, located on a low ridge next to the Tigris River waterway south of Baghdad about 50 km (31 mi) from the border with Iran. It lies at the northern tip of the marshlands between ...
. Downstream of Amarah, though, several of its tributaries originating in Iran allow the Tigris's flow to increase, and it maintains a steady course thereafter. The three marshes once provided an intertwined environment, particularly during periods of flooding as the rivers overflowed.


Central

The Central Marshes receive water from influxes of the Tigris's distributaries, namely the Shatt al-Muminah and Majar al-Kabir south of
Amarah Amarah (), also spelled Amara, is a city in south-eastern Iraq, located on a low ridge next to the Tigris River waterway south of Baghdad about 50 km (31 mi) from the border with Iran. It lies at the northern tip of the marshlands between ...
. The Tigris serves as the marshes' eastern boundary while the Euphrates serves as its southern boundary. Covering an area of , the marshes consist of
reed bed A reedbed or reed bed is a natural habitat found in floodplains, waterlogged depressions and estuaries. Reedbeds are part of a succession from young reeds colonising open water or wet ground through a gradation of increasingly dry ground. As ...
s and several permanent lakes including Umm al Binni lake. The Al-Zikri and Hawr Umm Al-Binni lakes are two of the notable lakes and are deep.


Hammar

The Hammar Marshes are primarily fed by the Euphrates and lie south of it with a western extent to
Nasiriyah Nasiriyah ( , ; , BGN: , ), also spelled Nassiriya or Nasiriya, is a city in Iraq, the capital of the Dhi Qar Governorate. It lies on the lower Euphrates, about south-southeast of Baghdad, near the ruins of the ancient city of Ur. Its po ...
, eastern border of the
Shatt al-Arab The Shatt al-Arab () is a river about in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in the Basra Governorate of southern Iraq. The southern end of the river constitutes the Iran– ...
and southern extent of
Basrah Basra () is a port city in southern Iraq. It is the capital of the eponymous Basra Governorate, as well as the third largest city in Iraq overall, behind Baghdad and Mosul. Located near the Iran–Iraq border at the north-easternmost exten ...
. Normally, the marshes are a area of permanent marsh and lake but during period of flooding can extend to . In periods of flooding, water from the Central Marsh, fed by the Tigris can overflow and supply the marshes with water. Hammar Lake is the largest water body within the marsh and has an area of by , with depths ranging between -. In the summer, large portion of the marshes' and lake's shore are exposed, revealing islands that are used for agriculture.


Hawizeh

The Hawizeh Marshes lie east of the Tigris and a portion lie in
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
. The Iranian side of the marshes, known as Hawr Al-Azim, is fed by the Karkheh River, while the Tigris distributaries Al-Musharrah and Al-Kahla supply the Iraqi side, only with much less water than the Karkheh. During spring flooding, the Tigris may directly flow into the marshes. The marshes are drained by the Al-Kassarah. This river plays a critical role in maintaining the Al-Hawizeh marshes as a flow-through system and preventing it from becoming a closed saline basin. The marshes are from north to south and about from east to west, covering a total area of . Permanent portions of the marshes include the northern and central portion while the southern part is generally seasonal. Moderately dense vegetation can be found in the permanent areas along with large -deep lakes in the northern portions. As the Hawizeh Marshes fared the best during the draining, they can facilitate the reproduction of flora, fauna and other species in Central and Hammar marshes.


Ecology

The marshes constitute a
flooded grasslands and savannas Flooded grasslands and savannas is a terrestrial biome of the World Wide Fund for Nature (WWF) biogeographical system, consisting of large expanses or complexes of flooded grasslands. These areas support numerous plants and animals adapted to th ...
ecoregion An ecoregion (ecological region) is an ecological and geographic area that exists on multiple different levels, defined by type, quality, and quantity of environmental resources. Ecoregions cover relatively large areas of land or water, and c ...
, also known as the Tigris-Euphrates alluvial salt marsh. The ecoregion includes both the Mesopotamian Marshes and the Shadegan Ponds, a wetland on the lower
Karun River The Karun (, ) is the Iranian river with the highest water flow, and the country's only navigable river. It is long. The Karun rises in the Zard Kuh mountains of the Bakhtiari district in the Zagros Range, receiving many tributaries, such as ...
in neighboring Iran. The marshes are integral to coastal health, filtering out pollutants and waste before they reach the Gulf, though this capacity was significantly degraded after their draining. The marshes also serve as spawning and nursery sites for coastal fish and
shrimp A shrimp (: shrimp (American English, US) or shrimps (British English, UK)) is a crustacean with an elongated body and a primarily Aquatic locomotion, swimming mode of locomotion – typically Decapods belonging to the Caridea or Dendrobranchi ...
species.Richardson, Curtis J., Peter Reiss, Najah A. Hussain, Azzam J. Alwash, and Douglas J. Pool. “The Restoration Potential of the Mesopotamian Marshes of Iraq.” ''Science'' 307, no. 5713 (2005): 1307–11. . The seasonal and permanent marshlands are dominated by aquatic plants, including reeds ('' Phragmites australis''), cattail rushes ('' Typha domingensis''), and papyrus sedge (''Cyperus papyrus''). Riparian forests of poplar (mainly '' Populus euphratica''),
tamarisk The genus ''Tamarix'' (tamarisk, salt cedar, taray) is composed of about 50–60 species of flowering plants in the family Tamaricaceae, native to drier areas of Eurasia and Africa. The generic name originated in Latin and may refer to the Tamb ...
('' Tamarix pentandra'' and '' Tamarix meyeri''), and willow (mainly '' Salix acmophylla'') occur on islands and river banks. The marshes are home to 40 species of bird and several species of fish. It demarcates a range limit for a number of bird species.
Flamingo Flamingos or flamingoes () are a type of wading bird in the family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas (including the Caribbe ...
s,
pelican Pelicans (genus ''Pelecanus'') are a genus of large water birds that make up the family Pelecanidae. They are characterized by a long beak and a large throat pouch used for catching prey and draining water from the scooped-up contents before ...
s and
heron Herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 75 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genus ''Botaurus'' are referred to as bi ...
s inhabit the marshes. The marshes were once home to a large number of birds and the stopover for many other migratory birds as they traveled from
Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...
to
Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
. At risk are 40% to 60% of the world's marbled teal population that live in the marshes, along with 90% of the world's population of Basra reed-warbler. Also at risk are the
sacred ibis The African sacred ibis (''Threskiornis aethiopicus'') is a species of ibis, a wading bird of the family Threskiornithidae. It is native to much of Africa, as well as small parts of Iraq, Iran and Kuwait. It is especially known for its role in ...
and African darter. A subspecies of the hooded crow known as the Mesopotamian crow is found in this part of southern Iraq. Seven species are now extinct from the marshes, including the Indian crested porcupine, the Bunn's short-tailed bandicoot rat and the marsh
gray wolf The wolf (''Canis lupus''; : wolves), also known as the grey wolf or gray wolf, is a canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, including the dog and dingo, though gr ...
. The draining of the marshes caused a significant decline in bioproductivity; following the Multi-National Force overthrow of the Saddam Hussein regime, water flow to the marshes was restored and the ecosystem has begun to recover. Considerable confusion has existed relating to the status of the
Eurasian otter The Eurasian otter (''Lutra lutra''), also known as the European otter, Eurasian river otter, European river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia and the Maghreb. The most widely distributed member o ...
and the
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
''maxwelli'' subspecies of the
smooth-coated otter The smooth-coated otter (''Lutrogale perspicillata'') is a freshwater otter species from regions of South and Southwest Asia, with the majority of its numbers found in Southeast Asia. It has been ranked as " vulnerable" on the IUCN Red List since ...
in the region, but recent surveys have confirmed that both still survive.


Inhabitants

Maʻdān live in secluded villages of elaborate reed houses throughout the marshes, often only reached by boat. Fish, rice cultivation, water buffalo and other resources are also used in their daily lives. In the 1950s, there were an estimated 500,000 Marsh Arabs. This population shrank to about 20,000 following the draining and Saddam's violent reprisals, and between 80,000 and 120,000 fled to neighboring Iran. Following the 2003 Iraq invasion, Marsh Arabs have begun to return to the marshes. Many hacked down the dikes and dams that Saddam had built. The Iraqi government has provided support via channels like the Iraq Cultural Health Fund, which funds Marsh Arabs in their efforts to protect traditional cultural practices. Nevertheless, Marsh Arabs remain one of Iraq’s most underserved populations, struggling to obtain healthcare, clean drinking water, and adequate nutrition.“Ma’Dan (Marsh Arabs).” ''Worldmark Encyclopedia of Cultures and Daily Life: Asia & Oceania, L-Z'', 2017. As the marshes become increasingly saline and polluted, many Marsh Arabs are once again being forced to relocate. For those who remain, their traditional lifestyle is threatened. The marshes supplied 60 percent of Iraq’s fish; that number has dwindled to the single digits.Martin Fletcher. “Paradise Lost: Iraqi Marsh Arabs Have Fished, Hunted, Worked and Feuded in Their Reed-Flled Watery World for 5,000 Years. But Saddam Hussein, Modernity and Now Isil Have Dealt Their Traditions a Deadly Blow. Martin Fletcher Reports.” ''Telegraph Magazine'', 2016, 32–. This, combined with the lack of potable water for raising water buffalo, is driving some Marsh Arabs to marsh perimeters, where they farm grain.


History

In the 4th millennium BCE, the first literate societies emerged in Southern
Mesopotamia Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia is known as present-day Iraq and forms the eastern geographic boundary of ...
, often referred to as the "
Cradle of Civilization A cradle of civilization is a location and a culture where civilization was developed independent of other civilizations in other locations. A civilization is any complex society characterized by the development of the state, social strati ...
", and the first cities and complex state bureaucracies were developed there during the
Uruk period The Uruk period (; also known as Protoliterate period) existed from the protohistory, protohistoric Chalcolithic to Early Bronze Age period in the history of Mesopotamia, after the Ubaid period and before the Jemdet Nasr period. Named after the S ...
. Due to the geographical location and ecological factors of the
Fertile Crescent The Fertile Crescent () is a crescent-shaped region in the Middle East, spanning modern-day Iraq, Israel, Jordan, Lebanon, Palestine, and Syria, together with northern Kuwait, south-eastern Turkey, and western Iran. Some authors also include ...
, a crescent-shape fertile area running from the basins of the
Nile The Nile (also known as the Nile River or River Nile) is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa. It has historically been considered the List of river sy ...
in
Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
, northwards along the
Mediterranean The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
coast in
Palestine Palestine, officially the State of Palestine, is a country in West Asia. Recognized by International recognition of Palestine, 147 of the UN's 193 member states, it encompasses the Israeli-occupied West Bank, including East Jerusalem, and th ...
and
Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...
, and southwards again along the
Euphrates The Euphrates ( ; see #Etymology, below) is the longest and one of the most historically important rivers of West Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia (). Originati ...
and the
Tigris The Tigris ( ; see #Etymology, below) is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian Desert, Syrian and Arabia ...
towards the
Persian Gulf The Persian Gulf, sometimes called the Arabian Gulf, is a Mediterranean seas, mediterranean sea in West Asia. The body of water is an extension of the Arabian Sea and the larger Indian Ocean located between Iran and the Arabian Peninsula.Un ...
, civilizations were able to develop agricultural and technological programmes. The crucial trigger was the availability of wild edible plant species. Farming arose early in the Fertile Crescent because the area had a large quantity of wild wheat and pulse species that were nutritious and easy to domesticate. In the 10th and 11th centuries, the marshes were the site of the state of Batihah founded by 'Imran ibn Shahin.


Draining and subsequent restoration efforts

The draining of Mesopotamian Marshes began in the 1950s with the Central Marshes and gradually accelerated as it affected the two other main marshes until early in the 21st century with the 2003 invasion of Iraq. The draining of the marshes was intended at first to reclaim land for agriculture along with oil exploration but later served as a punishment for Shia Arabs in response to the
1991 uprisings in Iraq The 1991 Iraqi uprisings were ethnic and religious uprisings against Saddam Hussein, Saddam Hussein's Ba'athist Iraq, Ba'athist regime in Iraq that were led by Shia Islam in Iraq, Shia Arabs and Kurds in Iraq, Kurds. The uprisings lasted f ...
. The draining of the marshes was largely due to
dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aqua ...
s, dykes and other diversion structures constructed into Iraq but were exacerbated by upstream dam construction in Syria and Turkey. While the British engineers worked with the Iraqi government, Frank Haigh developed the Haigh Report in 1951. His report recommended a complex of
canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface ...
s, sluices, and dykes on the lower portions of both the Tigris and Euphrates. These water control structures could be used to drain marshes therefore creating profitable farmland. In 1953, construction began on the Third River or Main Outfall Drain and later the Saddam River which would drain water from the Central Marsh under the Euphrates and through a canal eventually into the Persian Gulf. Work on the Third River and other draining projects, particularly for the Hawizeh Marsh, quickly progressed in the 1980s during the
Iran–Iraq War The Iran–Iraq War, also known as the First Gulf War, was an armed conflict between Iran and Iraq that lasted from September 1980 to August 1988. Active hostilities began with the Iraqi invasion of Iran and lasted for nearly eight years, unti ...
in order to afford Iraqis a tactical advantage in the marshes. Part of the Hammar Marshes was also drained in 1985 to clear area for oil exploration. After the 1991
Gulf War , combatant2 = , commander1 = , commander2 = , strength1 = Over 950,000 soldiers3,113 tanks1,800 aircraft2,200 artillery systems , page = https://www.govinfo.gov/content/pkg/GAOREPORTS-PEMD-96- ...
, Shia Muslims in southern Iraq rebelled against Saddam Hussein, who in turn crushed the rebellion and further accelerated the draining of the Central and Hammar marshes in order to evict Shias that have taken refuge in the marshes. With the exception of the Nasiriyah Drainage Pump Station, the Third River was completed in 1992 and two other canals were constructed south and nearly parallel to it. One, the Mother of Battles canal, was constructed to divert the flow of the Euphrates south below the Hammar Marsh. Second, the Loyalty to Leader Canal also known as the Basrah Sweetwater Canal, which originates in the lower Euphrates region, collected water from the terminus of the Gharraf River and diverted it under the Euphrates, away from the Central Marshes and below the Hammar Marshes towards Basrah. The Glory River was also constructed to divert water from the Tigris's southern-flowing distributaries east and parallel along the Tigris until they reached the Euphrates near its confluence with the Tigris at Qurna. By the 2003 invasion of Iraq, the marshes had lost 90% of their size from the previous decades. The Central and Hammar Marshes were nearly drained and only 35% of the Hawizeh Marshes remained. After the invasion, locals destroyed dikes. The combined efforts of the Iraq government, United Nations, U.S. agencies and record precipitation in Turkey helped begin a restoration of the marshes. As of late 2006, 58% of the original marshes had been reinundated. The Nasiriyah Drainage Pump Station was completed in 2009, affording the Third River to be used for agricultural drainage. Recent drought and continued upstream dam construction and operation in Turkey, Syria, and Iran have reduced the marshes to around 30% of their original size by 2009. Turkey has built at least 34 dams on the Tigris and Euphrates rivers, threatening marsh recovery. From a high of around 75% restored in 2008, the wetlands receded to 58% of their average pre-drained level by spring 2015. Meanwhile, as the water level fell, salinity increased to 15,000 parts per million in some areas, up from 300 to 500 ppm in the 1980s. "When the river water levels were high, the low-saline Tigris washed over the marshes, cleansed them, and pushed the salty residue into the saltier Euphrates, which flows along the western edge. But now the Tigris is so low that the Euphrates provides most of the water in the marshes." The government prioritizes providing water to cities along the Tigris and Shatt al-Arab, resulting in reduced flow to the marshes.


Threats From Climate Change and Pollution

Temperatures Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Temperature is measured with a thermometer. It reflects the average kinetic energy of the vibrating and colliding atoms making up a subst ...
in the region have risen over 0.5 degrees Celsius per decade, causing drought in Iraq and in neighbors whose waters flow into the Tigris and Euphrates. Combined with upriver dams, this reduction in water has caused the three primary marshes to fragment into ten smaller marshes. Massive amounts of untreated
sewage Sewage (or domestic sewage, domestic wastewater, municipal wastewater) is a type of wastewater that is produced by a community of people. It is typically transported through a sewerage, sewer system. Sewage consists of wastewater discharged fro ...
and other pollutants are dumped into the Tigris and Euphrates, moving downstream into the marshes and further degrading the water quality.Al‐mudaffar Fawzi, Nadia, Kelly P. Goodwin, Bayan A. Mahdi, and Michelle L. Stevens. “Effects of Mesopotamian Marsh (Iraq) Desiccation on the Cultural Knowledge and Livelihood of Marsh Arab Women.” ''Ecosystem Health and Sustainability'' 2, no. 3 (January 2016): 4, 12. .


See also

* Battle of the Marshes *
Tigris–Euphrates river system The Tigris–Euphrates river system is a large river system in West Asia that flows into the Persian Gulf. Its primary rivers are the Tigris and Euphrates, along with smaller tributary, tributaries. From their sources and upper courses in the Ar ...
*
Shatt al-Arab The Shatt al-Arab () is a river about in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in the Basra Governorate of southern Iraq. The southern end of the river constitutes the Iran– ...
* Geography of Iraq


References

* U.S. National Aeronautics and Space Administration. 2008
NASA Visible Earth from 2004 satellite photography


External links

*
Mesopotamian Marshes in Basra erea
(VIDEO)



{{coord, 31, 00, N, 47, 00, E, source:kolossus-cswiki, display=title Mesopotamia Marshes of Iran Marshes of Iraq Geography of Kuwait Ecoregions of Iran Ecoregions of Iraq Flooded grasslands and savannas Palearctic ecoregions Shatt al-Arab basin