CROPLAND DYNAMICS IN RUSSIA IN 1990–2015 AND SOIL EMISSION OF CARBON DIOXIDE
Abstract
It was demonstrated that since the 1990-s (the period of crisis and reforms) the characteristic spatialfactor matrix of cropland dynamics in Russia is much the same as in the second half of the 19th century. The regional bioclimatic potential (BCP) and the numbers of rural population are major factors defining the type of cropland area changes in a particular region. Three types of cropland area dynamics have formed in the regions of Russia during 1990–2015, i.e. «sustainable decrease», «decrease then stabilization», and «decrease then growth». The models show that changes in regional soil emission of CO2 as a result of the plowing of fallow lands can be significant (1–5%) and comparable with the contribution of climate change during the same period. For the areas where fallow lands are not cultivated the contribution of climate to CO2 soil emission is greater than in the areas with active plowing of young fallows where the land use is more important factor.
Keywords
dynamics of cropland area,
plowing of fallow lands,
bioclimatic potential,
rural population dynamics,
agrarian development of the Russian Federation,
soil emission of CO2
Supporting agencies: The study was carried out under the scientific research theme 0148-2018-0015 «Identification of regularities of the spatial structure and dynamics of landscapes under the influence of natural and anthropogenic factors for the optimization of environmental management» (Reg. № 01201352471).
About the Authors
D. I. Lyuri
Institute of Geography, Russian Academy of Sciences
Russian Federation
Department of Physical Geography and Problems of Environment Management, Leading Scientific Researcher, D.Sc. in Biology
Russian Federation
Department of Physical Geography and Problems of Environment Management, Leading Scientific Researcher, D.Sc. in Biology
A. S. Nekrich
Institute of Geography, Russian Academy of Sciences
Russian Federation
Department of Physical Geography and Problems of Environment Management, Scientific Researcher, PhD. in Geography
Russian Federation
Department of Physical Geography and Problems of Environment Management, Scientific Researcher, PhD. in Geography
D. V. Karelin
Lomonosov Moscow State University; Centre for Problems of Ecology and Forest Productivity, Russian Academy of Sciences
Russian Federation
Russian Federation
Faculty of Biology, Department of General Ecology, Professor, D.Sc. in Biology; Institute of Geography, Russian Academy of Sciences, Department of Physical Geography and Problems of Environment Management, Senior Scientific Researcher;
Laboratory of Productivity and Biosphere Functions of Forests, Scientific Researcher
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Review
For citations:
Lyuri D.I., Nekrich A.S., Karelin D.V. CROPLAND DYNAMICS IN RUSSIA IN 1990–2015 AND SOIL EMISSION OF CARBON DIOXIDE. Vestnik Moskovskogo universiteta. Seriya 5, Geografiya. 2018;(3):70-76. (In Russ.)
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