FLUCTUATIONS OF THE AGROCLIMATIC CONDITIONS FOR THE DEVELOPMENT OF VITICULTURE IN A CERTAIN VITICULTURAL REGION ON THE BASIS OF LAND DATA
Abstract
In recent decades, global warming has affected the development of agriculture, including viticulture. Winegrowers and winemakers must consider the fluctuations of the climatic elements now and in the future. Proceeding from these positions, the author considers that the topic of agroclimatic conditions for the development of the grapevine is relevant in view of the possibilities for producing quality grapes and wine.
The main aim of the study is to investigate some of the main agroclimatic indicators for grapevine development, related to precipitation and its fluctuations for different periods of time, such as: annual precipitation amount, Selyaninov hydrothermal coefficient for June, July and August, precipitation amounts for September and October, precipitation amounts above 110 mm for September and October and their frequency in a certain geographical region, namely: the region of Knezha, Pleven and Pavlikeni.
The analysis is based on a baseline period of 50 years: 1931–1980. Regarding the fluctuations of the indicators related to the base period, 30-year series were formed for the periods 1981–2010 and 1989–2019. Relevant findings, summaries and conclusions have been drawn.
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