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Water Resources - The dynamics of benthic communities of various reaches of the Kuibyshev Reservoir over a long-term observation period 1966 to 2016 has been statistically analyzed. The results of... 相似文献
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Mathematical aspects of predicting water quality class based on data of hydrobiological analysis with the use of pattern recognition are considered. A series of calculations of indicator valences of zoobenthos was performed using saprobic analysis by the M. Zelinka–P. Marvan method based on the occurrence of aquatic animals in different types of water bodies. Models using nonlinear optimization methods for the recognition of water quality classes by zoobenthos are proposed. Detailed comparative analysis is made for the results obtained from the observational data on small rivers in the Samara region. 相似文献
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Multidimensional mathematical analysis of a set of abiotic and biotic indices was carried out on the basis of many-year (1958–1984, 1992) observations of the Kuibyshev Reservoir. The character of the space and time dynamics of the samples is studied; the localization of sections of statistically homogeneous data was implemented. Graphs of the long-term spatial taxonomic structure of water masses were analyzed for different periods. The graphs had been formed with the use of the principal component method, neuron network modeling, and self-organizing Kohonen maps. Comprehensive zoning of the reservoir water area was carried out with the help of GIS technologies. 相似文献
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