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Unformatted text preview: Name: Wing Sze Tsang Biology 9 Date: 1/22/2008 Tigris-Euphrates Rivers In spite of the great size of the Middle East, the Euphrates, and the Tigris are classified as large by world standards. Predominantly in the countries of Turkey, Syria, and Iraq, the watersheds of both the Euphrates and the Tigris are situated within the Middle East. The Euphrates, the longest inter-state river in western Asia, has been developed since 4000 B.C. Basin ir rigation from the Tigris and Euphrates Rivers support several ancient civilizations in Mesopotamia. Due to the extremely arid climate, nevertheless, the farm lands on the Mesopotamian alluvials have suffered from salt accumulation and waterlogging problems during the Sumerian age. This ancient civilization disappeared with the abandonment of ir rigation-canal systems. The river's average annual flow at the Turkish-Syrian border was approximately about 30 x 10 9 m before Turkey began building large dams on the Euphrates, t. A further 1.8 x 10 9 m is then added in Syria from the...
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This note was uploaded on 09/18/2009 for the course BIO 120 taught by Professor Staff during the Fall '07 term at USC.
- Fall '07