Page 59 - Water and DSİ

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CHAPTER IV - IRRIGATION
4.6. Southeastern Anatolian Project (GAP)
Southeastern Anatolian Project (GAP) is an integrated development project aiming socio-
economic development of the region through predominantly irrigation and energy investments in
the Tigris-Euphrates basin of Eastern Anatolia.
The project area covers 9 provinces in the region namely; Gaziantep, Adıyaman, Kilis, Şanlıurfa,
Diyarbakır, Mardin, Siirt, Batman, and Şırnak. According to population census held in 2007, almost
7.35 million people live in these provinces.
The project constitutes one of the biggest investments of Republic of Turkey. DSİ implements the
major part of the Project containing 13 sub-projects; 7 of which took place in the Euphrates basin
and 6 of which in the Tigris basin. Within the scope of these 13 sub-projects, it is foreseen the
construction of 22 dams and 19 Hydroelectric Power Plants (HEPPs) with an installed power
capacity of 7,490 MW producing 27,367 GWh hydroelectric energy production annually. Up to
date, the realization for the irrigation projects (309,000 ha) has been 29% and the realization for
the hydroelectric projects has been 75%.
GAP action plan has been declared in 2008 and Prime Ministry Circular No.2008/11 has been put
into effect in order to realize infrastructure projects of social and economical development.
GAP Irrigations in operation (ha)
Euphrates Basin
223,214 Hacıhıdır
2,080
Şanlıurfa Harran
147,887 Derik Dumluca
1,860
Adıyaman Çamgazi
8,000 15
th
DSI Region Small Scale
900
Hancağız
6,945 20
th
DSI Region Small Scale
4,949
Yaylak
18,322
Tigris Basin
14,092
Bozava Pumping
8,669 Kralkızı-Tigris Pumping
6,692
Belkız Nizip Pumping Irrigation
4,300 Batman Left Bank
7,000
Kayacık Plain
11,350 Batman Right Bank
400
Up Harran
13,455
Individual Irrigations
33,595
Samsat Pumping
2,806 Devegeçidi
10,600
Paşabağ Irrigation
400 Silvan I and II
8,790
Bozova Centre Pumping Irrigation
1,080 Slopi Nerdüş
2,740
Individual Irrigations
37,634
Çınar Göksu
4,234
Nusaybin Çağ Çağ
8,600 Garzan Kozluk
3,973
Akçakale Groundwater Irrigation
10,255 20
th
DSI Region Small Scale
3,258
Ceylanpınar Groundwater Irrigation
9,000
General Total
308,535
4.7. Irrigation Management
Rivers in Turkey have generally irregular regimes. The natural flows can not be taken directly as
usable sources. The average annual precipitation, evaporation, and surface runoff varies with
respect to time and geography. Nearly, 70% of the total precipitation falls from October to March.
There is little effective rainfall during the summer months in which agricultural sector needs water.