The aim the research was to evaluate the use of biocli- matic resources of different areas of Donbass Region by spring barley and sunflower crops in the conditions of warm- ing of the climate. The research objective was to study and calculate bioclimatic resources indicators of all areas of Donbass Region, to develop the method of efficiency evalua- tion of agroclimatic resources use when growing spring barley and sunflower. The objects of the research were modern indicators of all areas of Donbass Region, average annual regional yielding capacity of these crops. To carry out the research the method of D.I. Shashko and Yu.A. Gulyanov was used. The information from agroclimatic manuals of Donbass, average regional yielding capacity of spring barley and sunflower according to statistical office records for thelast 20 years was used. Bioclimatic potential BCP per unit, biological climate productivity BCP in points, growth coeffi- cient GC, humidity coefficient HC according to D.I. Shashko and the cost of the point in centners per one bonitet point were calculated (according to Shashko D.I. scale). The cost of spring barley bonitet point 0.25 c/hectare per one climate bonitet point Bc was used at 2 % efficiency of photosynthetic active radiation (PAR). At this point cost the yielding capacity of spring barley by location was 36.5-54.5 c / hectare (aver- age one is 45.5 c/hectare), and the average annual regional yielding capacity varied from 14.5 c /hectare to 23.4 c/hectare (average yield is 19 c/hectare) that was more than two times lower than possible yield according to BCP. The efficiency of using BCP by barley crop was 28.9-64.1 %. The cost of cli- mate bonitet point for sunflower was 0.34 c/hectare per one bonitet point Bk. The yielding capacity according to BCP var- ied from 44 c/hectare to 65.4 c/hectare, the average annual productive yielding capacity by location varies from 12 to 18 c/hectare, that was three times less than climatically provided yielding capacity. The efficiency of use of BCP was 24.2-40.6 %. The following conclusions were made: there was high bioclimatic potential in Donbass which provided high yields of many crops with adaptive cultivation technology and maintenance of technological discipline; it was possible to increase yields of spring barley twice, and sunflower three times carrying out adaptation practices.
climate, bioclimatic potential, biological productivity of climate, bonitet point cost, spring barley, sun- flower, crop, efficiency, bioclimatic resources, yield, Donbass Region
1. Shashko D.I. Uchityvat' bioklimaticheskiy potenci- al // Zemledelie. -1985. - № 4. - S. 19-26.
2. Gulyanov Yu.A., Dosov D.Zh., Umarova S.A. Effektiv- nost' ispol'zovaniya bioklimaticheskih resursov pri vyraschivanii ozimoy pshenicy v Orenburzh'e // Izvestiya OGAU. - 2010. - T.2, Vyp. 26-1. - S. 48-50.
3. Mischenko Z.A., Kirnasovskaya N.V. Agroklimatiche- skie resursy Ukrainy i urozhay. - Odessa: Ekolo- giya, 2011. - 296 s.
4. Agroklіmatichniy dovіdnik po Lugans'kіy oblastі (1986-2005 rr.). - Lugans'k: Vid. TOV «Vіrtual'na real'nіst'», 2011. - 216 s.
5. Klіmatologіchnі standartnі normi (1961-1990) / za red. V.M. Babіchenko. - Kiїv: UkrNDGMІ, 2002. - 400 s.
