STUDY OF THE ECOLOGICAL CONDITION OF AGRICULTURAL LAND ADJACENT TO THE REGULATORY IRRIGATIVE POOLS

Abstract

In the article considers the environmental problems that arise during the construction or operation of irrigation systems and analyzes the methods of monitoring the technical condition of their elements.
 The relevance of research on this topic is due to the progressive dynamics of pollution of surface, groundwater and soils around irrigation networks, which leads to the deterioration of their condition and the development of erosion.
 The purpose of the study is to identify ways of migration of filtration waters and the consequences of this, to provide an objective justification for the geophysical method of the natural pulsed electromagnetic field of the Earth that was used.
 To achieve this goal, a number of tasks were solved, such as: the choice of methods for detecting water filtration zones using remote methods; conducting field studies of the state of agricultural lands around the regulatory basins of Tsarychanska irrigation systems. Construction of maps, graphs, diagrams; comparison, analysis of surveys conducted around the basin of the Tsarychanska irrigation system; identification of water movement routes in the underground space depending on the geological structure of the region, forecasting the consequences of soil flooding around the basin.
 Previous studies are considered. The research of lands located around the regulatory basins was carried out by the method of PIEMPZ, the position of water filtration zones in the soils adjacent to the basin and the direction of water migration were established, the nature of their flow and possible consequences were analyzed.
 During the research, all the anomalies of the increased and decreased values ​​of the flux density of the magnetic component of PIEMPZ were identified and their characteristics were given. According to the data, the groundwater level rose to almost 3 m. In the eastern part of the RB there is an abnormal decrease in relief. All filtration and flood zones allocated in 2016 increased. According to the filming in 2018, both the northern and eastern sides, except for a small area in the north-western part, are flooded. This level of groundwater worsens the yield and environmental situation around RB. Recommendations provided.