Phytoindication spatio-temporal structures tehnozemov and endogenous mechanisms of sustainable functioning of anthropogenic soil-like bodies
Journal: Agrology (Vol.1, No. 3)Publication Date: 2018-09-21
Authors : E. P. Maslikova;
Page : 273-280
Keywords : phytoindication; tehnozemy; spatiotemporal dynamics; humidity mode; humidification contrast;
Abstract
The paper clarified patterns of the spatiotemporal dynamics of the water regimes of the different technosol types by means of phytoindication methods. It is shown that technosol ecotopes can be evaluated as subxerophyte or submesophyte and hemihidrocontrastofobe or hemigidrocontrastophyle. Between the soil water regime and variability of damping conditions there is a statistically significant inverse correlation. Less humid and more contrasting moisture conditions are typical for the sod-lithogenic soils on loess-like loams. Wetter and less contrasting moisture conditions are typical for the sod-lithogenic soils on red-brown clays. Other studied technosols occupy an intermediate position. Humidity and variability of damping conditions formed the spatial patterns within respective technosol types. These patterns are specific. Isotropic configuration formed in sod lithogenic soils on red-brown clays and loess loam. Clearly marked anisotropic configuration formed in pedozems and tehnosol on a gray-green clay. Specificity also manifests itself in the form of structural formations and their relative position and shape boundaries. Spatial structures tend to naturally change over time. The forming of the self-oscillatory rhythms was revealed in which the zone with higher rates show a tendency to decrease, and with reduced ‒ to increase. The direction of the prevailing trend change indicators also form a pattern. The existence of a self-oscillating spatio-temporal pattern indicates the formation in tehnosols as anthropogenic formations of stable functioning endogenous mechanisms. Overall the spatial contrast of moisture conditions is a reflection of the considerable variability of the technosols properties. The ultimate cause of this spatial and temporal variability of the technosol properties is a position far from the thermodynamic equilibrium, which is an indication of soil or climax quasiclimax biogeocoenoses. Availability of the rhythmic oscillation processes dynamics of humidity regime indicates the formation of a coherent system properties in the technosols.
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