STUDY OF SOIL MOISTURE DYNAMICS UNDER DRIP IRRIGATION

Authors:Kuznetsov Evgeny V., Kilidi Kharlampiy I., Khadzhidi Anna E.

631.674.6
Theme: Land reclamation, water manadgement and agrophysics
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Purpose: to study the dynamics of moisture in soils on the drainage layer during drip irrigation to save water resources and ensure uniform watering of crops using moisture contours.

Materials and methods. The study is based on the theory of moisture transfer under the influence of drip irrigation on soil. Moisture contours were studied in laboratory conditions using a soil lysimeter, which was used to model the geological cross-section of the irrigated area, represented by alluvial meadow soils formed on pebbles. The pebble layer thickness was assumed to be up to 3 m. A regression analysis of moisture movement was carried out, and a mathematical model describing the nature of its movement on the drainage layer was obtained. The estimated volume of wet soil was defined on the basis of moisture contours as a result of calculating the volume of the formed lathe object using cartograms for each hour of irrigation.

Results. Data on the moisture distribution in soil profile according to irrigation hours, presented on cartograms constructed using a personal computer, were obtained. The contours with the same humidity – isolines on which the humidity was displayed: 5; 10; 40 % are highlighted on the cartograms. It has been determined that water at an emitter discharge of 2.5 l/h reaches the drainage layer 4 hours after the beginning of irrigation. The graph for moisture distribution in soil volume by hour, reflecting the dynamics of water distribution supplied from an emitter with a constant discharge over 10 hours of irrigation has been constructed.

Conclusion. The dynamics of moisture distribution during drip irrigation in soils located on a drainage bed was studied. Under experimental conditions, when crop irrigation lasts for more than 8 hours, an ineffective excess of irrigation rate and an increase in the design capacity of the drip irrigation system are observed.

doi: 10.31774/2712-9357-2024-14-19-33

Keywords

drip irrigation, lysimeter, moisture contours, irrigation efficiency, discharge, irrigation rate, water use coefficient

For quoting

Kuznetsov E. V., Kilidi Kh. I., Khadzhidi A. E. Study of soil moisture dynamics under drip irrigation. Land Reclamation and Hydraulic Engineering. 2024;14(1):19–33. (In Russ.). https://doi.org/10.31774/2712-9357-2024-14-1-19-33

Authors

E. V. Kuznetsov – Professor of the Department of Construction and Operation of Water Management Facilities, Doctor of Technical Sciences, Professor, Kuban State Agrarian University named after I. T. Trubilin, Krasnodar, Russian Federation, dtn-kuz@rambler.ru, AuthorID: 176848, ORCID ID: 0000-0003-0524-8390;

Kh. I. Kilidi – Senior Lecturer of the Department of Hydraulics and Agricultural Water Supply, Kuban State Agrarian University named after I. T. Trubilin, Krasnodar, Russian Federation, harlam_one@mail.ru, AuthorID: 672032, ORCID ID: 0000-0002-4561-7878;

A. E. Khadzhidi – Acting Head of the Department of Hydraulics and Agricultural Water Supply, Doctor of Technical Sciences, Associate Professor, Kuban State Agrarian University named after I. T. Trubilin, Krasnodar, Russian Federation, dtn-khanna@yandex.ru, AuthorID: 509767, ORCID ID: 0000-0002-1375-9548.

Bibliography

1. Semerdzhyan A.K., Ben A.V., 2018. Opyt proektirovaniya i stroitel'stva sistem kapel'nogo orosheniya v Krasnodarskom krae [The experience of designing and construction of drip irrigation systems in the Krasnodar territory]. Prirodoobustroystvo [Environmental Engineering], no. 4, pp. 85-88, DOI: 10.26897/1997-6011/2018-4-85-88, EDN: YMBOJF. (In Russian).

2. Vasiliev S.M., Shkura V.N., Shtanko A.S., 2020. Lokal'nye kontury kapel'nogo uvlazhneniya pochv, formiruyushchiesya na sklonovykh zemlyakh [Local contours of drip soil moisturing formed on slope lands]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa: nauka i vysshee professional'noe obrazovanie [Proc. of Lower Volga Agro-University Complex: Science and Higher Education], no. 1(57), pp. 279-289, DOI: 10.32786/2071-9485-2020-01-28, EDN: EDFSMG. (In Russian).

3. Kuznetsov E.V., Almatar A., Novikov A.E., 2023. Otsenka vliyaniya vodnogo rezhima pochvy na produktivnost' soi pri vnutripochvennom oroshenii [Evaluation of the influence of soil water regime on soybean productivity under subsurface irrigation]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa: nauka i vysshee professional'noe obrazovanie [Proc. of Lower Volga Agro-University Complex: Science and Higher Education], no. 2(70), pp. 451-458, DOI: 10.32786/2071-9485-2023-02-53, EDN: NTJEPA. (In Russian).

4. Kuznetsov E.V., Khadzhidi A.E., Kurtnezirov A.N., 2015. Povyshenie effektivnosti orosheniya v sostave investitsionnogo proekta adaptirovannoy zemel'no-okhrannoy sistemy [Irrigation efficiency improvement as part of the investment project of adapted land protection system]. Trudy Kubanskogo gosudarstvennogo agrarnogo universiteta [Proc. of Kuban State Agrarian University], no. 52, pp. 206-211, EDN: TWPKVR. (In Russian).

5. Shuravilin A.V., Kucher D.E., Surikova T.I., 2015. Eksperimental'nye issledovaniya po formirovaniyu uvlazhnyaemoy zony na sistemakh kapel'nogo orosheniya [Experimental studies on the formation of a wetted zone on drip irrigation systems]. Zemleustroystvo, kadastr i monitoring zemel' [Land Management, Monitoring and Cadastre], no. 9(128), pp. 66-72, EDN: UMZPTN. (In Russian).

6. Akhmedov A.D., Galiullina E.Yu., 2012. Kontury uvlazhneniya pochvy pri kapel'nom oroshenii [Contours of soil moisture during drip irrigation]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa: nauka i vysshee professional'noe obrazovanie [Proc. of Lower Volga Agro-University Complex: Science and Higher Education], no. 3(27), pp. 183-188, EDN: PCXLGR. (In Russian).

7. Shtanko A.S., Glushchenko Yu.Yu., Voronov O.V., 2017. [Accuracy evaluation of approximation of isopleths position of local moisture contours under drip irrigation]. Nauchnyy zhurnal Rossiyskogo NII problem melioratsii, no. 2(26), pp. 69-86, available: https:rosniipm-sm.ru/article?n=316 [accessed 01.12.2023], EDN: YNWTDN. (In Russian).

8. Shtanko A.S., Shkura V.N., 2018. [Method of graphic-analytical construction of the of drip soil moisture contours]. Nauchnyy zhurnal Rossiyskogo NII problem melioratsii, no. 1(29), pp. 67-85, available: https:rosniipm-sm.ru/article?n=914 [accessed 01.12.2023], EDN: YOTSKC. (In Russian).

9. Rogachev A.F., Melikhova E.V., 2021. Komp'yuternoe modelirovanie i parametriczatsiya v srede MathCad konturov uvlazhneniya pri kapel'nom oroshenii [Computer modeling and parameterization in the MathCad environment of humidification contours for drip irrigation]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa: nauka i vysshee professional'noe obrazovanie [Proc. of Lower Volga Agro-University Complex: Science and Higher Education], no. 4(64), pp. 367-378, DOI: 10.32786/2071-9485-2021-04-37, EDN: VBOPAO. (In Russian).

10. Vasiliev S.M., Shtanko A.S., 2019. Geometricheskie i vlazhnostnye parametry konturov kapel'nogo uvlazhneniya suglinistykh chernozemov [Geometric and moisture parameters of drip irrigation contours of loamy chernozems]. Melioratsiya i vodnoe khozyaystvo [Land Reclamation and Water Management], no. 1, pp. 16-19, EDN: SXSYLX. (In Russian).

11. Patel N., Rajput T.B.S., 2008. Dynamics and modeling of soil water under subsurface drip irrigated onion. Agricultural Water Management, Dec., vol. 95, iss. 12, pp. 1335-1349, https:doi.org/10.1016/j.agwat.2008.06.002.

12. Karimi R., Appels W.M., 2021. Soil moisture dynamics in a new indoor facility for subsurface drip irrigation of field crops. Irrigation Science, 39(4), pp. 715-724, https:doi.org/10.1007/s00271-021-00741-3.