Ecology of equilibrium and stationary states of the unique Humanity-Biosphere system

  • 1 Univers ity ―Pr. Assen Zlatarov‖, Burgas Faculty of Real Sciences, Department of Physics and Mathematics


The biosphere as a physical space in which there is life, including human life, is quantitatively characterized by population quantities. The population can be described by certain physical laws in thermodynamic approximation with the application of the notion of entropy. Entropy is a term not only purely physical but also universal. It is a criterion for the description of the evolution and development of the unique Biosphere-Human system. The development of human societies as a part component of the Biosphere is subject to the transformations that are the result of technical developments and the technical-scientific revolution in general. These anthropogenic activities lead to the negative effects upon the Biosphere with the accumulations of pollutants both in the atmosphere and in the system as a whole. The entropy of the Biosphere component as a result of the accumulation of pollutants changes over time. Human physical , ecological and social health is at risk, with the further development of pathological states and human health problems. The entropy of the human component is increasing and the entropy of the Biosphere is decreasing, respectively. The decrease in Biosphere entropy is dictated by the disappear of many species of plants and animals as a consequence of the ecological problem. It is necessary to mention that the steady state and the equilibrium state have different meanings. The steady state is described by a very complex stage under the action of multiple factors with a tendency to stabilize parameters that do not vary over time and the system components “adapt” to these stabilized numerical values such as ambient temperature, pressure and constant amounts of species of animals and plants. The equilibrium state is an idea lized case of the system which from a purely thermodynamic point of view is described by maximum entropy. This paper shows that the human entropy increases at the expense of the decreasing of biosphere entropy, a fact of the universal principle of the conservation of energy. The increase in human entropy results to the instability and risk with self-destructive tendencies unless the steady state is not assured. The mechanisms for the obtaining of the steady state are complex and can be based on some rules and principles at a global level with tendencies to use nontraditional energy sources and of the waste recycling with effects of reducing of the accumulation of pollutants in the atmosphere.



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