CHARACTERISTIC OF THE SOIL MOISTURE STATE BASED ON CARTOGRAPHIC METHODS AND SATELLITE SURVEY DATA
Journal Title: Вісник Одеського національного університету. Географічні та геологічні науки - Year 2018, Vol 23, Issue 2
Abstract
Problem Statement and Purpose. The article describe the features and directions of space imagery materials usage for determination of humidity and degradation of arable lands. The geomorphological smdies carried out by the method of relief plastics and morphodynamic analysis based on space survey data made it possible to determine the areas of soil degradation, namely, their ovemioistening. Application of remote sensing materials of the Earth within the limits of the performed research allowed determination of soil moisture, soil degradation processes (washout of humus horizon, waterlogging, flooding). The object of the study is the soil cover of the territory of the Baryshevsky area of the Kiev region. The subject of the study is the soil humidity and its degradation. The research aimed to determination of the soil moisture content, areas of waterlogging and flooding based on materials of remote sensing of the Earth and applying the method of relief plastics with morphodynamic analysis. Data & Methods. The geomorphological methods of investigation based on the digital terrain model and computer processing of space images was applied for determining the areas with different degrees of moisture that could lead to soil degradation. Moisture was determined by the methods of classification the Sentinel space images, as well as by using the normalized moisture index (NWI). Based on the relief plastics method, the elevations and depressions of the Earth's surface relief could be detected. The areas with elevation of the relief surface include watersheds, hills, ridges, but depressions could be observed in case of beams, valleys, lowlands, etc. Morphodynamic analysis allows us to see the direction of flows and transport of particles. The integration of the space images analysis and the relief plastics method with morphodynamic analysis make it possible to see a general picture of the direction of geochemical flows from elevated areas of streams formation to areas of accumulation of ground masses and moisture Results Applying of a complex methodology in the analysis of the territory allows us to determine the areas of demolition and accumulation of ground masses and water. The directions of surface demolition of the upper layer of soil and water to the lowered sections of the relief are shown. Thus, in the microcrops the soil moisture is higher depend on climatic conditions and could lead to accumulation and stagnation of water. The methods described above allow us to determine and predict the surface areas prone to waterlogging. The research results can be used for mapping of the structure of soil cover.
Authors and Affiliations
N. Pazynych, І. Romanciuc
Keywords
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- EP ID EP508063
- DOI 10.18524/2303-9914.2018.2(33).146631
- Views 95
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