1. Dynamics of main climatic indicators and their influence on erosion processes in central part of Rostov region
- Author
-
Dmitry P. Sidarenko
- Subjects
climate ,climatic data ,cold period ,meltwater runoff ,precipitation ,snow ,Agriculture - Abstract
The purpose of the research was to study the impact of climatic factors on formation of meltwater runoff, and to establish changes in its indicators from arable land of varying degrees of compaction in the central part of the Rostov region. In the research, both long-term climatic data and current data on the weather conditions of the cold period of the year, intensity of erosion processes formed during snowmelt were used. Aclose mathematical relationship between the amount of runoff and water content in snow was revealed. Analysis of climatic data showed that the indicators of the cold period 19812020 were much higher than the similar indicators of 18811980. The greatest divergence was observed in the average temperature, so in the 40-year period this indicator was 1.5 C, and the same indicator for the 100-year period was only0.1 C. There is an increase in temperature in December-February period from4.4 to2.3 C. Alongside with that, there was also an increase in precipitation for October-March period and an increase in precipitation for December-February period to 169 mm and 134, respectively, over a100-year period. The analysis revealed asignificant decrease in runoff indicators in the following twenty years. Thus, the amount of meltwater runoff from loose arable land decreased from 6.1 mm to 2.8 mm in 19812000, the values of water content in snow also significantly decreased in 20012020. The analysis of changes in the main climatic indicators revealed asignificant increase in the air temperature of the cold period and increase in precipitation over the past 40 years. Meanwhile, there was adecrease in water content in snow, which resulted in significantly reduced amount of runoff formed from meltwater. This can largely be the result of both warming of climate in the studied area and favorable influence of anti-erosion measures carried out in the 1970s.
- Published
- 2024
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