Summary |
Investigations
related to establishment of efficiency of drainage water
use for irrigation in places of their formation and drainage
flow management with the purposes of drainage water discharge
decrease outside of irrigated territories, irrigated lands
water availability increase at the expense of volume of
groundwater pumping for irrigation and their plots under
sub-irrigation.Relief is hilly.
Soils structure corresponds to heavy and middle loam; 60-65%
of area not saline; 30% - spot salinity, 5-10% -medium and
slightly saline, chloride -sulfate type.Experimental
plot area is 8,5 th.ha. Land use efficiency -0,7. Water supply
from distributive canals, efficiency -0,75Number of vertical
drainage wells is 60, depth 25-35m with gravel-sand filter.
During investigations
the regularity of ground water formation on irrigated lands
is established and technology of their maximum use on irrigation
is adjusted by vertical drainage operation regime optimization,
system measures on irrigated lands efficiency increase and
their water availability improvement is fulfilled. |
Bibliography |
Author
- F.F. VishpolskyTitle -"
Surface and ground water rational use in "XXIII sezd
KPSS" collective farm.Recommendations,
KazNIIGim, 1992.
Methods of
irrigated lands water availability increase by means of
coordinated drainage system operation regime with water
supply and irrigation are considered as well as favorable
soil water-salt regime creation and crops productivity increase. |
