Articles
Research on the climatic changes effect on the reduction of the water reserve in the soil and its influence on the grapevine yield in the Murfatlar vineyard
Article number
1418_15
Pages
119 – 126
Language
English
Abstract
The topic of climate change has been heavily debated over the past decade concerning its influence on agricultural practices.
Changes in habitat parameters such as temperature, precipitation, and increased frequency of weather events are worrisome factors leading to decreased yields, food security, and increased food prices.
The Dobrogean Plateau, located in the southeast of Romania near the Black Sea, has experienced alterations in such parameters, affecting the agrobiological and technological evolution of the vine.
In this study, we observed an increase in the thermal balance, a reduction in precipitation, and their uneven distribution in time and space.
These factors influenced the availability of soil water resources, impacting grape production.
During the observation period between April and September of the years 2019-2023, the momentary soil water reserve decreased from 92% in 2019 to 75% in 2023, reaching its lowest point of 61% in 2020. On average, there was a 24% water shortage compared to the field capacity during these observed years.
This effect coincided with an increase in atmospheric temperatures from 18.3°C (normal) to 21.1°C and a 15% decrease in precipitations compared to the average recorded in the vegetative months.
The water shortage in the soil determined the reduction of grape production by up to 31% compared to the estimated amount, (predicted at 5.73 t ha-1) to an average of 3.98 t ha-1 obtained in the period 2019-2023 in the Murfatlar vineyard.
Changes in habitat parameters such as temperature, precipitation, and increased frequency of weather events are worrisome factors leading to decreased yields, food security, and increased food prices.
The Dobrogean Plateau, located in the southeast of Romania near the Black Sea, has experienced alterations in such parameters, affecting the agrobiological and technological evolution of the vine.
In this study, we observed an increase in the thermal balance, a reduction in precipitation, and their uneven distribution in time and space.
These factors influenced the availability of soil water resources, impacting grape production.
During the observation period between April and September of the years 2019-2023, the momentary soil water reserve decreased from 92% in 2019 to 75% in 2023, reaching its lowest point of 61% in 2020. On average, there was a 24% water shortage compared to the field capacity during these observed years.
This effect coincided with an increase in atmospheric temperatures from 18.3°C (normal) to 21.1°C and a 15% decrease in precipitations compared to the average recorded in the vegetative months.
The water shortage in the soil determined the reduction of grape production by up to 31% compared to the estimated amount, (predicted at 5.73 t ha-1) to an average of 3.98 t ha-1 obtained in the period 2019-2023 in the Murfatlar vineyard.
Publication
Authors
S.A. Ene, A. Ranca, I. Dina, R.M. Mărgineanu
Keywords
climate changes, deficient precipitation, heliothermal resources, soil moisture, grape production
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