Scientific and methodological substantiation of measures for environmental management of upstream area Tupolangsky waterworks

¹ "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers" National Research University, Tashkent, Uzbekistan
² Turkmen Agricultural University, Ashgabat, Turkmenistan

^* Corresponding author: ilkhommatbe@mail.ru

Abstract

For the 8.2 hectares of the Tupolang hydroscheme near the dam, the measures for its landscaping with the help of a drip irrigation system have been developed. The source of irrigation is infiltration water from the old riverbed. After natural filtration, the water is clear, without mechanical impurities, with a salinity of 0.2 g/l and a flow rate of about 50 l/s. At the end of this pipe, the head is 4 MPa, which eliminates the traditional device of the pumping station to create the required head in a closed irrigation network. This allows the application of these irrigation systems without a pumping station and water treatment. The article presents the initial data for the calculation of drip irrigation:

1. Soils are typical gray soils, non-saline, medium loam by mechanical composition;

2. Groundwaters are at a depth of > 3 m;

3. Mass volume of soils is 1.4 t/m³;

4. Marginal field moisture capacity (MWC) - 28 %;

5. Ultimate moisture capacity is accepted at 85 % of FWP and makes 23.8 %. And most importantly, such irrigation saves water resources.