The dynamics of soil moisture in the vineyard plantations in the Iași vineyard under conditions of water and thermal stress

Abstract

Drought periods lasting 2-3 years are those with serious consequences for wine plantations, because the effects are felt from the following year, and the restoration of the plantations takes another two to three years. From the analysis of the multiannual data recorded at the SCDVV Iaşi, an increase in the frequency of dry years is noted. The lack of precipitation and their uneven distribution associated with the ever-higher temperatures, led to a sharp decrease in the accessible moisture values from the soil and an increase in the deficit, in certain periods, up to a depth of 150 cm. The paper presents the precipitation regime in the viticultural ecosystem of the Iași vineyard from 2022 to 2024, compared to the multi-year averages, as well as the dynamics of accessible humidity and soil water deficit in conditions of water and thermal stress.