Soil Water Regime Spatial Heterogeneity Under Alfalfa Growing in The Forest-Steppe Zone of Ukraine

Year 2020, Volume: 15 Issue: 2, 116 - 121, 30.06.2019

Inna Vlasenko , M.m. Ladyka , Starodubtsev V.m.

Abstract

The article considers the issue of spatial heterogeneity of the soil water regime in agricultural fields in the forest-steppe zone of Ukraine. The studies were conducted under the conditions of growing perennial herbs, directly alfalfa varieties "Sinyukha". The redistribution of moisture over the microrelief elements in spring during snowmelt and the flooding of microdepressions with thawed water was shown, the duration of which was 10-15 days in the years of observation. The moisture reserves in the 0-100 cm layer amounted to 108-126% on the slopes compared to control, and increased on the bottoms (after filtration and evaporation of melt water) -to 137-148%. The harvest of green mass of alfalfa at the bottom was completely absent, and on their slopes it was 116-93% compared to control, depending on weather conditions. In the work, field and laboratory research methods and a system of UAV-ERS methods, as well as determination of vegetation indices, were used.

Keywords

Micro-depression, Water regime, Soil, Spatial Herogenocity, Photosynetsis, Drone, Alfalafa

Supporting Institution

National University of Life and Environmental Sciences of Ukraine

References

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