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Abstract

In recent times there have been many changes on Earth, which have appeared after anthropogenic impact. Finding solu-tions to problems in the environment requires studying the problems quickly, make proper conclusions and creating safe and useful measures. Humanity has always had an effect on the environment. There can be many changes on the Earth be-cause of direct and indirect effects of humans on nature. Determining these changes at the right time and organizing meas-urements of them requires the creation of quick analysing methods. This development has improved specialists’ interest for remote sensing (RS) imagery. Moreover, in accordance with analysis of literature sources, agriculture, irrigation and ecolo-gy have the most demand for RS imagery. This article is about using geographic information system (GIS) and RS technol-ogies in cadastre and urban construction branches. This article covers a newly created automated method for the calculation of artificial surface area based on satellite images. Accuracy of the analysis is verified according to the field experiments. Accuracy of analysis is 95%. According to the analysis from 1972 to 2019 artificial area enlargement is 13.44%. This method is very simple and easy to use. Using this data, the analysis method can decrease economical costs for field measures. Using this method and these tools in branches also allows for greater efficiency in time and resources.
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Bibliography

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Authors and Affiliations

Aybek M. Arifjanov
1
ORCID: ORCID
Shamshodbek B. Akmalov
1
ORCID: ORCID
Luqmon N. Samiev
1
ORCID: ORCID

  1. Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 39 Kari Niyazov Str. Tashkent 100000, Uzbekistan
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Abstract

Article deals with a fractional and chemical composition of sediments from the sediment reservoir in Ilyash village, Ferghana region, Uzbekistan (Syr Darya river basin) and analyses their feasibility. As a key factor in the study of this process was considered the fractional and agrochemical composition of sediments moving with water in the sediment reservoir, and the change of their share in the water along the length of the reservoir. The main composition of the sediments in reservoir consists of fractions >0.25 and 0.25–0.01 mm, with the average fraction of 69% in the inlet and 60% in the outlet. The river sediments are rich in minerals important for the irrigated cropland. Based on the results we conclude that it is possible to regulate the number of chemical compounds in the water by controlling the exploitation regime of reservoir and the sedimentation process in it.
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Bibliography


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ARIFJANOV A., OTAXONOV M., SAMIEV L., AKMALOV S. 2019b. Hydraulic calculation of horizontal open drainages. E3S Web of Conferences, XXII International Scientific Conference “Construction the Formation of Living Environment” (FORM-2019). Vol. 97. DOI 10.1051/e3sconf/20199705039.
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Authors and Affiliations

Tatiana Kaletova
1 2
ORCID: ORCID
Aybek Arifjanov
2
ORCID: ORCID
Luqmon Samiev
2
ORCID: ORCID
Farrukh Babajanov
2
ORCID: ORCID

  1. Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovak Republic
  2. Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Uzbekistan
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Abstract

When taking water from pre-mountain rivers, for transferring of large amounts of river sediments, rich in mineral fertilizers, along with water to crop fields through irrigation networks requires high sediment transport capacity and deformation resistance from irrigation networks. The projecting and construction of irrigation canals with these features in the foothills requires concreting the canal. The high content of river sediments in the Sokh River (5 kg∙m –3) and the low efficiency of the Right Bank Irrigation Reservoir (10–15%) require high hydraulic efficiency of water intake canals from this system. The main challenge is to reduce costs in concreted canals and ultimately ensure technical superiority. In the research were used generally accepted research methods in hydraulics, in particular field research and consequently, mathematical analysis. Kokandsay, Kartan and Bachkir irrigation canals were accepted as the object of research, the canals were designed on the basis of the best hydraulic section, the canal side slope was taken as a variable parameter and the technical and economic efficiency was checked using computer software. As a result, it was found that the consumption of concrete raw material for 1 running meter can save 0.2–0.3 m 3, depending on the adoption of the canal side slope, the acceptance of the slope of the canal wall at values 1–1.5 will increase up to sedimentation 10%.
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Authors and Affiliations

Alisher Fatxulloyev
1
ORCID: ORCID
Qudratjon Rakhimov
1
ORCID: ORCID
Davronjon Allayorov
1
ORCID: ORCID
Luqmon Samiev
1
ORCID: ORCID
Makhsud Otakhonov
1
ORCID: ORCID

  1. “Tashkent Institute of Irrigation and Agricultural Mechanization Engineers” National Research University, Faculty of Hydromelioration, st. Kori Niyazov 39, Tashkent, Uzbekistan

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