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Engineering biogeochemistry: from V.I. Vernadsky’s fundamental ideas to technological solutions
At present, it is possible to identify a number of new directions for the development of biogeochemical research, at the junction of fundamental and applied studies. A novel field of research is being formed, namely, engineering biogeochemistry, within the framework of which innovative biogeochemical technologies and technological processes based on modeling and management of ecosystematic biogeochemical cycles are being developed. The application of these innovative technologies for the restoration of disturbed and polluted impact ecosystems, in particular, polar ecosystems in the zones of operation of gas-producing enterprises, is considered. Technological examples of calculations of geoecological risks, as well as microbial contamination risks are given. A pool of the developed biogeochemical technologies and their connection with other innovative technologies within the framework of gas-producing companies is shown.
Artificial Soils: Applicability and Functioning
The article examines the applicability and functioning of artificial soils, whose creation is based both on research into modeling moisture and salt transfer in soils and on the development of nature-like biogeochemical technologies for recreating natural biogeochemical cyclicity. Two main technological approaches for constructing artificial soils are demonstrated, namely: modeling soil processes and applying the modeling results to technologies for creating functional horizons of artificial soils. It is noted that artificial soils are essentially biophysical models, our consideration of which allows for the design of such soils for a wide variety of functional uses.
GREENHOUSE GAS EMISSIONS AS A MEASURE OF ENERGYEFFICIENCY IN ASSESSING THE LIFE CYCLE OF FERTILIZERS
The article examines the problem of energy efficiency in the chain from the production of fertilizers to their logistics, application, and waste production and disposal based on the huge amount of data accumulated in recent years on greenhouse gas (GHG) emissions (primarily CO2 and methane). Carbon dioxide emissions are shown to occur primarily from fuel combustion, as well as from the use of methane and CO2 as precursors for nitrogen fertilizers. GHG emissions can be considered as a measure of energy efficiency when assessing the life cycle of mineral fertilizers. Relevant examples are given.