Climate Aridization Signs and Their Ecosystem Displays on the Territory of Belarus
https://doi.org/10.31857/S2587556621040063
Abstract
The results of studies of changes in agrometeorological characteristics on the territory of Belarus in recent decades and their impact on the state of flora and fauna of the country are presented. It is shown that the isoline of the annual sum of active daily temperatures exceeding 10°С moves from the south to the north of the country at an average speed of about 12 km per year. The northern boundary of the growing season duration since the beginning of the period of modern warming has shifted to the north of Belarus by about 280 km and the average growing season duration has increased by 12 days. An increase in air temperature and evaporation with an almost unchanged annual amount of precipitation causes an increase in the aridity of the climate of Belarus. The average annual effective precipitation (excluding potential evaporation) decreases at a rate of about 6 mm/year and the zero balance between precipitation and potential evaporation moves to the north of Belarus at an average speed of 19 km per year. Statistical analysis of the relationship between the leaf area index (LAI) and meteorological parameters for the warm season shows that at present time the main factor limiting the growth of ecosystems’ biological productivity in Belarus is the precipitation amount. Modern climate changes do not contribute to an increase of the cultivated land biological productivity in the southern and central parts of Belarus (below the latitude of Minsk), the LAI here is decreasing at a rate of up to 2% per year. The displacement of agroclimatic zones and the increased climate aridity have led to the expansion of steppe plant and animal species of various taxonomic groups to the territory of Belarus as well as to changes in the aquatic flora and fauna.
About the Authors
V. F. Loginov
Institute of Nature Management of the NASB
Belarus
Belarus
Minsk
S. A. Lysenko
Institute of Nature Management of the NASB
Belarus
Belarus
Minsk
V. S. Khomich
Institute of Nature Management of the NASB
Belarus
Belarus
Minsk
V. P. Semenchenko
Scientific and Practical Center for Bioresources of the NASB
Belarus
Belarus
Minsk
A. V. Kulak
Scientific and Practical Center for Bioresources of the NASB
Belarus
Belarus
Minsk
I. M. Stepanovich
Kuprevich Institute of Experimental Botany of the NASB
Russian Federation
Russian Federation
Minsk
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Review
For citations:
Loginov V.F., Lysenko S.A., Khomich V.S., Semenchenko V.P., Kulak A.V., Stepanovich I.M. Climate Aridization Signs and Their Ecosystem Displays on the Territory of Belarus. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2021;85(4):515-527. (In Russ.) https://doi.org/10.31857/S2587556621040063
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