Analysis of the areas of ecologically unfavorable waterlogged soils in the agrolandscapes of the Kaliningrad region
https://doi.org/10.46845/1997-3071-2023-70-11-23
Abstract
The article is devoted to the actual problem of soils with excessive moisture accounting based on the analysis of cartographic materials and satellite images with subsequent data processing. In the humid climate of the Kaliningrad region (South-Western Baltic States), about 80% of the soils are drained, so the study is aimed at assessing their hydrological state in agricultural landscapes. Potential areas of land subject to waterlogging are proposed to be allocated on the basis of a diagnostic soil indicator – the degree of gley. In conditions of drainage, gley soils (Gleic Albeluvusols, Umbric Gleysols, Eutric Histosols) are at the greatest risk of developing an unfavorable ecological and hydrological situation. In total, they make up 21.9% of the total area of agricultural land in the Kaliningrad Region (excluding alluvial soils) and 26.2% in the Zelenograd Municipal District. The study of the soil cover of the territory of 15 agricultural enterprises that existed in the 70s – 80s of the twentieth century revealed a strong spatial heterogeneity in the distribution of areas of gley soils with high coefficients of variation. A similar situation persists on modern arable land. The actual areas of soils subject to waterlogging were taken into account based on the analysis of satellite images taken in November – December and February – April 2016–2022 during the most typical periods of the development of an unfavorable hydrological situation. For four arable plots, it is shown that the proportion of waterlogged soils averages from 17.5 to 38.7% of the total field area. Variation of soil areas with unsatisfactory hydrological condition may be associated with the precipitation of large amounts of precipitation and their accumulation in closed depressions. Various violations of the drainage network leads to poor quality of its work to remove excess moisture from the fields. The results of ecological and hydrological monitoring soils with excessive moisture in the agrolandscapes are the basis for making decisions to optimize the reclamation state.
About the Authors
O. A. Antsiferova
Kaliningrad State Technical University
Russian Federation
Russian Federation
Оl’ga A. Antsiferova - Doctor of Agricultural Sciences, Professor
Кaliningrad
V. P. Bertova
Kaliningrad State Technical University
Russian Federation
Russian Federation
Valeriya P. Bertova - student
Кaliningrad
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Review
For citations:
Antsiferova O.A., Bertova V.P. Analysis of the areas of ecologically unfavorable waterlogged soils in the agrolandscapes of the Kaliningrad region. KSTU News. 2023;(70):11-23. (In Russ.) https://doi.org/10.46845/1997-3071-2023-70-11-23
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