Climate Conditions Impact on the Sap Flow Into Plants and Their Dendrometric Changes

• Autorzy: Báreková Anna , Bárek Viliam , Kováčová Martina , Novotná Beáta , Kišš Vladimír

Identyfikatory

DOI

10.12911/22998993/124077

• Języki publikacji: EN

Abstrakty

EN

Water stress is an indicator that plant are suffering from drought. For optimization of the crop production is necessary to indicate physiological changes, those can be represented by stem expansion or shrinkage and sap flow rate. We used the Dynagage SGA5-WS (Dynamax) sensors for the sap flow monitoring and the sensors Diameter Dendrometer Small (Ecomatik) for measuring branches diameter changes in our research. The research was realized during two seasons, in the summer (from 31^st July to 14^th August 2018) and in the spring (from 27^th March to 14^th April 2019). The subject in our research were walnut trees (Juglans regia) situated in the private orchard in Nové Zámky area in Slovak Republic. The sap flow values in summer were on average range of 90 g•h^-1, with maximum measured values above 160 g•h^-1 measured after the precipitation events. After increasing of soil moisture on 1^st and 2^nd August 2018, it was detected the branches diameter expansion up to 0.05 mm. However, the other spring values were much lower. The sap flow reached less than 35 g•h^-1 what was one third values in summer 2018. This phenomenon is a result of the low transpiration intensity of transpiration or a leafless state of trees. Although the changes in diameter were not significant in the early vegetation stage, there were monitored some fluctuation causing the diameter was shrinked by 0.2 mm due to a negative average air temperature.

Słowa kluczowe

EN

sap flow; dendrometer; drought

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2020
• Tom: Vol. 21, nr 6
• Strony: 224--228
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Báreková Anna

• Department of Landscape Planning and Land Consolidation, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Slovakia

autor

Bárek Viliam

• Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Slovakia

autor

Kováčová Martina

• Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Slovakia

autor

Novotná Beáta

• Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Slovakia

autor

Kišš Vladimír

• Department of Biometeorology and Hydrology, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Slovakia

Bibliografia

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