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Vasiliy Dmitriev

3 linked publication records · St Petersburg University

Author: Vasiliy DmitrievSubject: Ecology and Environmental Protectionclear all
Showing 1-3 of 3 records
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation
Publication

CHANGES IN AQUATIC ECOSYSTEMS TROPHIC AND ECOLOGICAL STATE PARAMETERS WITH VARIOUS ANTHROPOGENIC IMPACTS BASED ON SIMULATION

(STEF92 Technology, 2021-12-20, Victor Tretyakov, Vasiliy Dmitriev, Ulyana Streltsova, Stepan Klubov, Iuliia Rozhkova)

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Integrated assessment of ecological status and ecological well-being of water bodies based on monitoring presupposes attributions of the aquatic ecosystems to definite gradations of trophic state and level of pollution. In really these attributions are carried out by means of multi-criteria evaluation. The evaluation uses a number of parameters. Each of them must be indispensable, and the parameters taken together must be sufficient for the precise evaluation. Of course, each of the parameters must be suitable for...

Ecology and Environmental Protection2021
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Ecology, Economics, Education and Legislation
Publication

CHOICE OF AQUATIC OBJECTS PARAMETERS FOR INTEGRAL EVALUATION OF THEIR ECOLOGICAL STATE AND EMERGENT PECULIARITIES BASED ON COMPUTER SIMULATION RESULTS

(STEF92 Technology, 2020-09-20, Victor Tretyakov, Vasiliy Dmitriev, Stepan Klubov)

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Monitoring of aquatic objects ecological state must include forehanded recognition of critical situations. Therefore, the forecasting widely uses possibilities of computer simulation. Of course, the most complicated and relevant simulation model of an aquatic ecosystem is giant simplification of its real life. Nevertheless, history of mathematical ecology proves that even such simple simulations of population dynamics, as predator-prey models and ones of competition for a resource between two or three species can ...

Ecology and Environmental Protection2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation
Publication

INTEGRAL ASSESSMENT OF STABILITY OF SOCIAL-ECOLOGICAL-ECONOMIC SYSTEM AGAINST CHANGES IN ITS FUNCTIONING CONDITIONS

(STEF92 Technology, 2017-06-20, Vasiliy Dmitriev, Georgy Osipov)

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The relevance of the research is conditioned by the need to develop the theory and practice of integral assessment of the state and emergent properties of complicated natural and social systems, with the use of modern methods of evaluation. The article deals with assessment of stability of the social-ecological-economic system (SEES), being its integrative (complex, emergent) property influencing the "quality of life" of the population. The authors, analyzing a regional SEES, characterize it by the ability to reta...

Ecology and Environmental Protection2017
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