For many years, negotiations between Turkey and Syria over the Orontes or Asi River were linked to issues concerning the Euphrates and Tigris rivers shared between Turkey, Syria and Iraq, and progress of the former was dependent on progress of the latter

The length of the river is open to discussion. Depending on the source consulted, this ranges from 248km to 556km. Rainfall in the basin is about 644mm annually. The average temperature is around 16°C. The climate is semi-arid to arid in Lebanon, with annual rainfall of about 400mm

The annual amount of water used in Syria is about 15BCM. This comes from the Euphrates (50 per cent) and the Asi River basins (20 per cent). Of the water usage from the Asi River, 2,230MCM are used for irrigation, 320MCM for domestic purposes and 270MCM for industrial purposes. The total amount of water withdrawn from the Asi River is 2,730MCM

All in all Turkey’s climate is defined as semi-arid, whereas nine types of climate are observed mediterranean climate, wet mediterranean climate, partially wet mediterranean climate, Black Sea climate, Partially wet Marmara climate, steppe climate, partially dry central anatolian climate, partially dry south east anatolian climate and continental east anatolian climate

The Euphrates-Tigris basin is among the most important river basins in Turkey and in the Middle East. The average annual discharge of the Euphrates and Tigris rivers is 84 billion m3, which equals to the average annual flow of the Nile River. Euphrates provides 90 per cent of water, whose average annual flow is 32 billion m3, from Turkey.

The discussions about the creation of a ministry related to the water resources have continued for a long time and took its final form in 2011 under the name of the Ministry of Forestry and Water Affairs.This ministry is responsible for the development of policies related to the protection of water resources and their sustainable use, and the coordination of the national water management.

Between 1950 and 1965, open irrigation canals were constructed in Turkey. Irrigation systems with canalettes have been introduced since 1965. Irrigation systems with canallettes were constructed between 1970 and 1980. By 1990, low and medium pipe network with advanced pipe technologies have been used.

The total usable water potential of Turkey is 112 Billion m3 of which 98 Billion m3 is surface water and 14 Billion m3 is groundwater. In order to monitor groundwater extractions and prevent overuse, a regulation on groundwater measuring was enacted in 2011.

It is essential to take immediate measures to prevent potential water shortage. Thus, demand-oriented management should be the focus rather than supply-oriented management. Demand-oriented management is provided by efficiently using water resources through limiting demand on water, and setting institutional, economic and administrative incentives to save water. It is essential for water resources management to be flexible and effective enough to adapt to changing climate conditions, dry spells, and new precipitation patterns.

According to the Falkenmark Index, which classifies countries in terms of their amount of water potential per capita, Turkey is a country with “water stress,” since it has 1,000-1,500 cubic meters of water potential per capita.