ENVIRONMENTAL AND ENERGY JUSTIFICATION OF THE NEED FOR AGRICULTURAL AREAS TO ENSURE FOOD SECURITY OF UKRAINE
DOI:
https://doi.org/10.34132/ers.2023.01.01.03Keywords:
arable land; food safety; WFE strategy; Efficiency of photosynthesis; crop capacity; food basket; ecosystem energy.Abstract
The article examines the energy equivalent of the needs in cultivated areas to ensure food security of Ukraine. It was determined that integration into WFE-strategies of food policy requires a comprehensive assessment of the energy component of agricultural production relative to the area of arable land, which will include the productivity of the main crops in the aspect of converting solar energy into food calories. A methodology was created and the efficiency of converting solar energy into the commodity energy value of the products of the grocery basket was calculated: 0.15-0.8% for cereals and vegetables, 0.042-0.054% for meat, 0.015-0.035% for drinks and spices, 0.12 % for dairy products, 0.37-0.93% for eggs. The overall efficiency of human consumption of solar energy through the food chain is 0.22%. To meet these needs, 1,831.3 m2 is needed, which receives 545.8 MW of solar energy during the growing season. It was determined that the yield fluctuations of the main crops are sinusoidal and their use in modeling the need for sowing areas will in the future allow to develop a dynamic model of management of benefits and quotas to stimulate the coverage of a possible shortage of certain main products. Also estimated is the amount of energy that can be used without affecting the yield by renewable energy when using a mobile configuration of its placement (or, on the contrary, directed to artificial lighting of the crop under stationary systems). As a result, basic indicators were obtained, which can be relied upon when developing a food security strategy for cities, and it was also determined that a standard household plot of 0.25 hectares fully covers the needs of one person with a surplus.
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