JUSTIFICATION OF CROPS WATER DEMAND AT THE ARARAT CONCAVITY OF THE RA IN CLIMATE CHANGE CONDITIONS

The current research work deals with the development of estimation and projection algorithms for crops water demand in agro-climatic conditions of three soil types in the lowland and piedmont zones of the Republic of Armenia. The development phases of the plants in 9 groups cultivated in the investigated area have been studied and the coefficients for the mentioned plants have been specified, and then, has been determined. A new mathematical algorithm has been developed, which enables to determine the crops water demand more precisely in different soil and climatic conditions. Projection of crops water demand has been carried out for the years with 50, 75, 95% supply of evapotranspiration deficit as of ∑ ( =1 − )