Abstract
Large-scale irrigation of Southern Black Soils in south-western Ukraine in 1966–1990 increased production but, also, salinity and loss of humus. Emergence of salinity depended on the quality of irrigation water, the duration and intensity of irrigation, and agro-amelioration practices. During the last 20–25 years, there has been much less irrigation, but soil degradation processes may have been exacerbated by the former regime. Assessment of the post-irrigation evolution of, now, irregularly irrigated Black Soils and comparison with adjacent rainfed soils indicates that soils within the Lower Dniester Irrigation System, which were irrigated with good-quality water (total dissolved salts 0.4–0.6 g/l), are not subject to salinity. During the post-irrigation period, their general physical properties have improved but there has been an accelerated loss of humus and increases in carbonate content and sodicity.
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Acknowledgements
This work was undertaken within national projects of the Ministry of Education and Science of Ukraine and partially supported by the GEF-UNEP funded ‘Towards INMS’ project, see www.inms.international for more details. The views expressed in this work are those of the authors and do not represent either GEF or UNEP.
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Bilanchyn, Y. et al. (2021). Post-irrigation State of Black Soils in South-Western Ukraine. In: Dent, D., Boincean, B. (eds) Regenerative Agriculture. Springer, Cham. https://doi.org/10.1007/978-3-030-72224-1_27
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DOI: https://doi.org/10.1007/978-3-030-72224-1_27
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