Water needs of interplanted crops on rice irrigation systems

Keywords: water needs, drained land, climate change, mineral soils, peat soils, water supply module, water regulation technologies

Abstract

Relevance of research. Recent studies of  weather and climatic conditions of the rice-growing zone of Ukraine indicate a steady tendency to increase the aridity of the climate in the region. Further increase in air temperature and decrease in natural water availability of these territories will lead to the increase in total evaporation and water needs for irrigation of the crops of rice crop rotation. Under such conditions a significant exacerbation of the existing problem of water deficit is expected in the region. The availability of water resources directly affects the efficiency of agricultural production on the irrigated lands of rice systems. In this regard, there is an objective need to adapt agricultural production on the irrigated lands of rice systems to the existed and predicted climate change, which, first of all, requires the assessment of water needs for irrigation both the leading crop of flooded rice and the interplanted  crops of rice crop rotation.

Aim of the study is to estimate the  changes in water needs for irrigation of the interplanted crops of rice crop rotation in the variable natural-agro-reclamation conditions of rice system functioning. To achieve this goal, the authors implemented a large-scale computer experiment, based on a complex of predictive-simulation models, which basing on  a long-term forecast, allow to estimate weather and climatic conditions, water regime, water regulation technologies and the productivity of reclaimed lands. During the experiment the conditions of total evaporation formation were investigated, the water needs of different types of interplanted crops of rice crop rotation were determined for the technology and regime of water regulation on the irrigated lands of rice systems for the typical groups of vegetation periods of target years in view of general heat and moisture provision. It was evaluated technological efficiency of irrigation of the interplanted crops of rice crop rotation in the variable natural-agro-reclamation conditions of rice system functioning and obtained results with the actual production data were compared.  

Research methods. The research methods were based on the application of system theory along with the systematic approach, system analysis and modeling oriented on widespread use of computers and related software in the developing of modern approaches to substantiate of technical and technological solutions for water regulation on the drained lands in the conditions of climate change. The object of the study is the Danube rice irrigation systems in Odessa region, design, natural and reclamation conditions of which are typical for the most of rice systems in Ukraine.  

Results of the study and the main conclusions. During the computer experiment the conditions of total evaporation formation were investigated, the water needs of different types of interplanted crops of rice crop rotation were determined for the technology and regime of water regulation on the irrigated lands of rice systems for the typical groups of vegetation periods of target years in view of general heat and moisture provision. Technological efficiency of irrigation of the interplanted crops of rice crop rotation in the variable natural-agro-reclamation conditions of rice system functioning was evaluated and the obtained results with the actual production data were compared. This approach makes it possible to evaluate and predict water needs for irrigation of the interplanted crops of rice crop rotation in the variable natural-agro-reclamation conditions of rice system functioning.

Prospects. The obtained results can be effectively used for justification of regime and technological decisions in the projects of reconstruction and modernization of existing rice systems and developing adaptive measures to the predicted climate change in the region. 

Author Biographies

A. M. Rokochinskiy, National University of Water and Environmental Engineering, Rivne

Dr. habil. in technical sciences

V. O. Turcheniuk, National University of Water and Environmental Engineering, Rivne

Dr. habil. in technical sciences

P. P. Volk, National University of Water and Environmental Engineering, Rivne

Ph.D.

R. M. Koptyuk, National University of Water and Environmental Engineering, Rivne

Ph. D.

N. V. Prykhodko, National University of Water and Environmental Engineering, Rivne

Ph. D. 

D. M. Rychko, National University of Water and Environmental Engineering, Rivne

Ph. D. student

References

1. Znevodnennia, V. Ukraini mozhut obmezhyty vykorystannia vody. Komu tse zahrozhuie? [Dehydration. Water use may be restricted in Ukraine. Who is it at risk?]. Retrieved from https://m.dt.ua/ECOLOGY/znevodnennya-342312_.html. [in Ukrainian].
2. Stashuk, V., Rokochynskyiiu A., Mendus, P., & Turcheniuk, V. et al. (2016). Rys Prydunav’ia [Rice Danube]. Kherson, 620. [in Ukrainian].
3. Stashuk, V., Rokochynskyiiu A., & Turcheniuk, V. et al. (2018). Pidvyshchennia efektyvnosti funktsionuvannia Prydunaiskykh rysovykh zroshuvalnykh system [Improving the efficiency of functioning of the Danube rice irrigation systems]. Odessa-Rivne: NUWEE. [in Ukrainian].
4. Stashuk, V., Vozhehova, R., Dudchenko. V., Rokochynskyiiu A., & Morozov., V. et al. Pidvyshchennia efektyvnosti funktsionuvannia rysovykh zroshuvalnykh system Ukrainy [Improving the efficiency of functioning of rice irrigation systems in Ukraine]. Kyiv-Kherson-Rivne: NUWEE. Retrieved from: http://ep3.nuwm.edu.ua/16836/. [in Ukrainian].
5. Rokochynskiy, A., Turcheniuk, V., Prykhodko, N., Volk, P., Gerasimov, Ie., & Cengiz Koç. (2020). Evaluation of Climate Change in the Rice-Growing Zone of Ukraine and Ways of Adaptation to the Predicted Changes. Agric Res. URL: https://doi.org/10.1007/s40003-020-00473-4
6. Rokochinskiy, A., Halik, O., Frolenkova, N., Voloshchuk, V., Shalai, S., Zubyk, Ya., Bezhuk, V., Zubyk, L., Pokladnov, Ye., Savchuk, T., Koptiuk, R., Nesteruk, L., Volk, P., & Kotiai, L. (2008). Posibnyk do DBN V.2.4-1-99 «Melioratyvni systemy ta sporudy» (Rozdil 3. Osushuvalni systemy). Meteorolohichne zabezpechennia inzhenerno-melioratyvnykh rozrakhunkiv u proektakh budivnytstva y rekonstruktsii osushuvalnykh system [Guide to DBN V.2.4-1-99 "Reclamation systems and structures" (Chapter 3. Drainage systems) Meteorological support of engineering and reclamation calculations in drainage systems construction and reconstruction projects]. Kiev: (Vidkryte aktsionerne tovarystvo) VAT «Ukrvodproekt». [in Ukrainian].
7. Rokochynskyi, A.M., Stashuk, V.A., Dupliak, V.D., & Frolenkova, N.A. (et al.) (2011). Tymchasovi rekomendatsii z prohnoznoi otsinky vodnoho rezhymu ta tekhnolohii vodorehuliuvannia osushuvanykh zemel u proektakh budivnytstva y rekonstruktsii melioratyvnykh system [Temporary recommendations for the predictive assessment of the water regime and water regulatory technologies for drained lands in the projects of construction and reconstruction of reclamation systems]. Rivne: NUVGP. [in Ukrainian].
8. Rokochynskyi, A.M. et al. (2006). Posibnyk do DBN V.2.4-1-99 «Melioratyvni systemy ta sporudy» (Rozdil 3. Osushuvalni systemy). Obgruntuvannia efektyvnoi proektnoi vrozhainosti na osushuvanykh zemliakh pry budivnytstvi y rekonstruktsii melioratyvnykh system [Guide to DBN V.2.4-1-99 "Reclamation systems and structures" (Chapter 3. Drainage systems) Substantiation of the effective project yield on the drained lands during construction and reconstruction of reclamation systems]. Rivne: NUVGP. [in Ukrainian].
9. Rokochinskiy, A. 2010. Naukovі ta praktichnі aspekti optimіzacіyi vodoregulyuvannya osushuvanikh zemel' na ekologo-ekonomіchnikh zasadakh: Monografіya [The scientific and practical aspects optimization of water regulation drained lands on environmental and economic grounds. Monograph]. Ed. M.I. Romashchenko. Rivne: NUVGP. ISBN 978-966-327-141-5. [in Ukrainian].
10. Rokochynskyi, A.M., Mendus, P.I., Synhaievych, D.M., Turcheniuk, V.O., Prykhodko, N.V., & Matus, S.V. (2018). Sposib polyvu suputnikh kultur rysovoi sivozminy [The method of watering of the accompanying crops of rice crop rotation]. Patent of Ukraine. № u 201709006. [in Ukrainian].
Published
2020-06-25
How to Cite
Rokochinskiy, A., Turcheniuk, V., Volk, P., Koptyuk, R., Prykhodko, N., & Rychko, D. (2020). Water needs of interplanted crops on rice irrigation systems. Land Reclamation and Water Management, (1), 102 - 111. https://doi.org/10.31073/mivg202001-232