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Comparison of irrigation performance based on management and ...

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Table 2: Characterizati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> selected <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> schemes<br />

Scheme name Hare Sille Bilate Metahara W<strong>on</strong>ji Finchaa<br />

Latitude 6º 30´ to 6 º 38´ N 5º 49' to 5º 55' N 6 0 48’ to 6 0 50’N 8º 21' to 8º 29' N 8º 21' to 8º 29' N 9º 30' to<br />

9º 60' N<br />

L<strong>on</strong>gitude 37 º 33´ to 37º 37´ E 37º 26' to 37º 29' E 38 0 4’ to 38 0 5’<br />

E<br />

39º 12' to 39º 18' E 39º 12' to<br />

39º 18' E<br />

37º 10' to<br />

37º 30' E<br />

Average annual rainfall 830.7 748 734 659.6 832 1300<br />

(mm)<br />

Average annual ET o (mm) 1651.2 1540 1958 1596.5<br />

Predominant soil types S<strong>and</strong>y loam to clay soil Silty loam <strong>and</strong> clay<br />

loam<br />

S<strong>and</strong>y to loam S<strong>and</strong> to clay loam Clay, light soil black heavy<br />

clay<br />

Water source Hare River Sille River Bilate River Awash River Awash River Finchaa<br />

River<br />

Water availability Scarce in some periods Scarce in some sufficient abundant abundant abundant<br />

periods<br />

Irrigated area (ha) 1962 1082 870 11058 7279.8 8500<br />

Main crops<br />

Banana, cott<strong>on</strong>, maize, Banana, cott<strong>on</strong>, Tobacco, maize Sugar cane Sugar cane Sugar cane,<br />

fruit trees, sweet potato,<br />

vegetables<br />

maize<br />

horticultural<br />

crops<br />

Year first operati<strong>on</strong>al 1996 1957 1962 1966 1954 1991<br />

Type <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>management</strong> community government Government/ government government government<br />

private<br />

L<strong>and</strong> ownership private government Government government government government<br />

Method <str<strong>on</strong>g>of</str<strong>on</strong>g> water abstracti<strong>on</strong> Gravity (inundati<strong>on</strong>, Gravity<br />

Gravity Gravity (weir) Pump Gravity/ weir<br />

weir)<br />

(inundati<strong>on</strong>) (barrage)<br />

Water delivery infrastructure Open channel Open channel Open channel/<br />

pipelines<br />

Open channel Open channel Open<br />

channel/pipe<br />

Predominant <strong>on</strong>-farm water<br />

applicati<strong>on</strong> method<br />

Furrow, basin Furrow, basin furrow furrow Furrow Sprinkler/<br />

furrow<br />

18

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