Evaluation of the environmental status of agricultural resources in the territory of Ukraine under conditions of climate change
DOI:
https://doi.org/10.15587/2312-8372.2018.134890Keywords:
agroclimatic resources, hydrothermal index, bioclimatic potential, adaptation to climate changeAbstract
The object of research is agro-climatic resources of Ukraine, characterized by a combination of agro-climatic factors acting on the growth conditions and plants development, forming the productivity of agricultural crops. These factors are quantitative and determined by agroclimatic indicators, indicating the relationship between climate factors and growth conditions, plants development, crop formation.
One of the most problematic climate assessment issues for agricultural production is the processes of heat and water exchange in the soil-plant-atmosphere system, where biophysical and physiological processes take place. In addition, we must take into account the environmental conditionsfor the plants: minimum and critical temperatures of air, soil; total temperatures required for crops ripening; the amount of moisture.
Models to forecast potential impacts of climate change on agricultural productivity, adaptation to these changes were used in the study. Agro-climatic resources of the territory were assessed on the indicators of heat supply, where the sum of active and effective temperatures was calculated. Index of climate stability was used in the assessment of the ecological status of agro-climatic resources. Due to elevated heat supply an increase in the duration of agricultural crops growing season is expected.
The example of Kharkiv region was further characterized by the main features of the current temperature-humidity regime. It has been established that the greatest increase in the air temperature has been recorded since the mid 70-ies of the last century.
It is established that during the annual course the air temperature will increase with an average linear trend of 0.3-0.4 ºС for 10 years. The amplitudes of air temperature fluctuations are significant enough to destabilize climatic conditions in the north. The southern and south-western parts of the region have a higher index of weather resistance due to the established air temperature regime and the nature of the underlying surface.
This ensures that measures can be taken to adapt agriculture to modern changes in agro-climatic resources. The proposed measures of agriculture adaptation to modern climate change can be successfully applied in neighboring countries, in particular, Moldova, Belarus.
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Copyright (c) 2018 Svitlana Reshetchenko, Nataliia Popovych, Boris Shulika, Andrey Porvan, Nadiia Cherkashyna
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