FINAL REPORT

‣ As shown by the hydrological and climatological data the Buyant Gol in recent years
had enough water to irrigate additionally the potential rehabilitation areas. The
situation can be improved by the reconstruction of Janjin Boolt headwork round 5 km
downstream of Buyant Gol bridge near Khovd Khot. The discharge of this headwork
has to be regulated by the authorities and a more intelligent channel distribution
system would avoid water waste. The transpiration of the water surface of the area
behind the headwork cannot be calculated because the only available data are focused
on the whole drainage basin of Buyant Gol. The calculated transpiration amount of
only 56 mm/a, mentioned above, is fixed on this area and seems to be very low, what
is very improbable under the conditions of this arid zone.
‣ A further extension of the irrigated cultikvation area could be guaranteed by a change
of the irrigation methods. Surface flooding–the most common method of nowadays --
wastes water to in a high amount. Drip irrigation for melons, potatoes, onions etc.
would be much more effective but more costly, however, drip irrigation systems must
be fully serviced all over the year, especially in fall before the start of the frost period.
The water quality for drip irrigation is suitable.
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