Alternative Water Allocation in Kyrgyzstan: Lessons from the Lower Colorado River Basin and New South Wales


Table 3.  Cropping pattern in the Akbura River basin.  Canal zone



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Table 3. 
Cropping pattern in the Akbura River basin. 
Canal zone 
Area 
Cotton 
Alfalfa 
Maize Wheat Fodder 
maize Orchard 
 Ha 



% % % 
AAC1 1,195 10 10 20 50 
25 
10 
AAC2 1,867 10 10 20 50 
25 
10 
AAC3 3,005 30 10 20 30 
25 
10 
Kairma 1,406 10 10 20 50 
25 
10 
Uvam 6,164 
40 10 20 20 
25 
10 
Ykkalik 5,801 20 10 20 40 
25 
10 
Yujny 4,824 
40 10 20 20 
25 
10 
Joipas 680 
10 10 20 50 
25 
10 
PMK 79 10 10 20 50 
25 
10 
Muan 302 
10 0 20 50 
25 
20 
Total 25,323 
28 10 20 32 
25 
10 
Fodder maize is considered to be cultivated after winter wheat harvesting only. Crop water 
requirements are given in Table 4 according to the locally applied recommendations. The irrigation 
water requirements of the second crops are taken as for fodder maize.
Table 4.
Crop irrigation water requirements. 
Crop 
Oct. Feb. Mar. Apr. May June July Aug. Sept. 
 
m
3
 ha
-1
 
Cotton 0 113 
1,587
0 623 
2,427 2,750 
2,500 0 
Alfalfa 407 419 531 1,058 1,690 2,089 2,750 
2,353 
1,776
Maize 
0 304 1,396
0 2,000 2,886 2,914 0 0 
Fodder 
maize 
1,350 
0 0 0 0 338 
1,004 
2,482 
2,477
Wheat 700 0 0 715 
1,535
0 0 0 0 
Orchard 0 1,417 283 0 1,200 1,625 2,001 
2,590 0 
Maximum crop yields 
cr
Ym
in equation (9) were based on the yield level produced by farms that 
had applied best practices. Potential yield reduction due to water deficit (
cr
y

) was taken from FAO 
studies [24]. Losses in the reservoir (
r
a
) based on the Papan Reservoir Operation Organization are 
taken as equal to 5% (Kadyr, personnel communication, 2008). Losses of the river flow (
i
a
) are taken 
as equal to 10% from node i-1 to node i. The delivery efficiency of the water-distributing system in 
irrigation zone m is given in Table 2. 

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