Water regime of soils in vineyard plantations in Copou Iasi Wine Center, from the period 2016 – 2020

Abstract

The multiannual average of the precipitations, for the Copou Iaşi viticultural center, is of 579.6 mm (value calculated for the period 1981 - 2010), out of which in the vegetation period (April-September) of 398.1 mm. From the analysis of the data registered at SCDVV Iasi, in the last decades, it is found an increased frequency of the dry years. Decreasing rainfall and high temperatures have led to a sharp decline in soil moisture levels, well below the optimal values for vines (50-80%) and increasing deficits. In the paper are presented: the distribution of precipitation from 2016 to 2020, compared to the multiannual average, accessible humidity and water deficit in the soil.