Original scientific paper
https://doi.org/10.20302/NC.2024.33.5
Synphytoindication models of the anthropogenic transformation of ecosystems
Ivan Khomiak
; Zhytomyr Ivan Franko State University, V. Berdychivska Str. 40, Zhytomyr, 10008, Ukraine
Oleksandr Harbar
; Zhytomyr Ivan Franko State University, V. Berdychivska Str. 40, Zhytomyr, 10008, Ukraine
Vitalii Kostiuk
; Zhytomyr Ivan Franko State University, V. Berdychivska Str. 40, Zhytomyr, 10008, Ukraine
Nataliia Demchuk
; Zhytomyr Ivan Franko State University, V. Berdychivska Str. 40, Zhytomyr, 10008, Ukraine
Olga Vasylenko
; Zhytomyr Ivan Franko State University, V. Berdychivska Str. 40, Zhytomyr, 10008, Ukraine
Abstract
Human activity related to the exploitation or protection of environmental elements requires the creation of forecasts of the consequences involved. Such forecasts are not possible without the construction of models of ecosystems and the processes occurring in them. One of the critical elements in modern forecasting of the dynamics of ecosystems is the modelling of their anthropogenic block. Our research aims to develop methods for assessing the anthropogenic transformation of ecosystems necessary for modelling their state and dynamics. In accordance with the goal, we set ourselves the following tasks: to determine the limits of anthropotolerance of plant species; to evaluate the hemeroby of plant groups by the methods of synphytoindication; to create models of mutual dependence between anthropogenic transformation and natural dynamics. To implement the tasks, we used standard geobotanical methods (creating a geobotanical description, classification of plant communities, and synphytoindication). Hemeroby of plant communities can be used as an indicator of the anthropogenic transformation of ecosystems. To do this, we measure the boundaries of anthropotolerance of the plant species that make up these groupings. The range of anthropotolerance of individual plant species can be determined by the 12 most common types of human activity. The strength of their impact on ecosystems was determined by the induced changes in above-ground phytomass. The transition from anthropotolerance of individual species to hemeroby of plant communities was carried out according to the classical synphytoindication technique. We created an 18-point scale by assigning three points to each classic type of hemoroby. The use of the synphytoindication scale allows modelling of the interdependence between anthropogenic transformation and the measurable characteristics of the ecosystem. An inverse linear relationship with a probability of approximation of 0.2 and a correlation coefficient of 0.45 is an indicator of natural dynamics and the level of anthropogenic transformation. The correlation coefficient is 0.29 for ecosystems that are not suitable for economic use, and 0.85 for the rest.
Keywords
modelling; Ukrainian Polissia; hemeroby; plant communities; anthropotolerance
Hrčak ID:
319770
URI
Publication date:
31.7.2024.
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