EVOLUTION OF THE PRECIPITATION REGIMEN AND HUMIDITY RESERVES IN THE SOIL OF VINEYARDS IN THE NORTH-EASTERN PART OF ROMANIA
DOI:
https://doi.org/10.1199/s58mtf47Keywords:
vineyard, precipitation, accessible humidity, water deficitAbstract
Insufficient precipitations and their poor distribution associated to other meteorological elements generate critical periods for the vine from physiological point of view that are reflected in grape production. The paper presents the evolution of precipitations from the vineyard ecosystem of Iasi vineyard between 1989 – 2022, based on which a series of biochemical coefficients, deviations from multiannual average values, as well as their influence on the dynamics of soil humidity (accessible humidity and water deficit) in the 2000 – 2022 period, were calculated. Based on the analysis of registered data we observed a lowering of the precipitation regimen usually unevenly distributed, represented by torrential rains that alternate with long draught periods. The increasingly lower precipitation quantities and high temperatures have caused a sharp decrease of accessible humidity in the soil, considerably below the optimal values for vine and an increase of deficit.References
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