Tigris–Euphrates river system

The Tigris–Euphrates river system is a large river system in West Asia that flows into the Persian Gulf. Its two main rivers are the Tigris and Euphrates, with smaller rivers called tributaries joining them along the way.

The rivers begin in eastern Turkey, with the Tigris starting at Lake Hazar and the Euphrates starting near Karasu and the Murat River. They flow through valleys and gorges into the uplands of Syria and northern Iraq, and then move across the alluvial plain of central Iraq. Other small rivers join the Tigris from the Zagros Mountains to the east. The two rivers eventually meet at Al-Qurnah to form the Shatt al-Arab, which empties into the Persian Gulf.

This area is very important in history because it was part of the Fertile Crescent, where the early Mesopotamian civilization began.

Geography

The Tigris–Euphrates Basin is in Turkey, Syria, Iraq, Iran, and Kuwait. The two main rivers, the Tigris and Euphrates, join to form the Shatt al-Arab. This river helps form part of the border between Iran and Iraq.

The area has a special climate. The upper parts of the rivers get more rain and snow. The lower parts are very hot and dry. When the snow melts in spring, it can cause floods. These floods help create marshes and lakes in the lowlands. The land between the two rivers is called Mesopotamia. It is known as the "Cradle of Civilization" because some of the world's first cities began there. The marshes and lakes are important for plants, animals, and the environment near the Persian Gulf.

History

Some of the very first civilizations began near the Tigris and Euphrates rivers. Important empires like Sumer, Akkad, Babylonia, and Assyria grew in this area. This land was part of the Fertile Crescent, where people first learned to farm. Scientists found very old grains there, over 12,500 years old. Big cities such as Ur and Babylon used the rivers for trade and sharing ideas. People in Iran also invented the qanat system to help grow crops in dry places.

Ecology

The Tigris–Euphrates river system has many kinds of fish. Some fish, like barbs, can grow very big—up to two meters long! People have eaten these fish for thousands of years. Many fish move between the rivers and the marshes with the seasons.

The Mesopotamian Marshes in southern Iraq were once the biggest wetlands in Western Eurasia. These marshes have tall plants like reeds and rushes. They give shelter and food to many animals. Birds, water buffalo, and small animals live here or visit when they travel. Sadly, these marshes were drained in the past for farming, but they are coming back now. Today, more than half of the marshes have returned, bringing back the plants and animals that need this special place.

Ecological threats

Iraq has big environmental problems like desertification and soil salination. For many years, farming has hurt the natural land. There is not much water or plants there. Old government projects changed where the water went. This dried out places where people lived and hurt animals and plants.

The marshlands were once big wet areas full of life in the Tigris–Euphrates basin. Over time, projects to control water dried up these marshes. This caused big changes to the environment and made life harder for people there. Today, many of these marshes are gone because of drought, dams, and other water projects. This loss has affected many animals and plants, including fish, wild boar, and water birds.

Climate change also hurts the area. It makes the rivers have less water and can cause sea levels to rise. This could bring salty seawater into the rivers. With less clean water and more people needing it, the problem of water scarcity will likely get worse in the future.

Water dispute

See also: Water conflict in the Middle East and North Africa

For many years, countries near the Tigris and Euphrates rivers have disagreed about water rights. This started in the 1960s when Turkey built dams to use the water for farming and making electricity. Syria and Iraq were worried because the dams could change how much water reached them.

In 2008, a drought made these worries bigger, especially for Iraq. Iraq asked Turkey to let more water flow, and Turkey agreed to help for a short time. Leaders from Turkey, Syria, and Iraq worked together to manage the rivers better and share information. Some big dams, like Turkey’s Ilisu Dam, still cause disagreements because they change how much water reaches Iraq. These disagreements still affect the countries’ relationships.

In media

The Tigris and Euphrates rivers have been shown in some movies. Two examples are Dawn of the World from 2008 and Zaman, The Man From The Reeds from 2003.