Veronika Lukasova

• PhD
• Researcher at Slovak Academy of Sciences

This study focused on testing the response of the assimilation apparatus of evergreen Pinaceae species to increasing levels of oxidative stress simulated in manipulative experiments. Needles were collected from mature individuals of Pinus mugo, Pinus cembra, Pinus sylvestris, Abies alba, and Picea abies at the foothill (FH) and alpine treeline ecot...

This study aims to analyse the phenological dynamics of tree species in response to changes in climatic conditions over the last two climate-normal periods (CLINO 1961−1990 and 1991−2020). We focused on the main climax tree species (Quercus species, Fagus sylvatica L., Abies alba Mill., Picea abies [L.] Karst., and Pinus mugo Turra) dominating eigh...

The current warming of climate has led to an enhancement of the extreme temperature risks threatening various systems. Following that, we analysed the progress of the main type of the temperature-extreme weather events—heatwaves (HWs). We focused on the area of the Western Carpathians (Central Europe), since the Carpathian Mountains are widely reco...

The changes in precipitation and temperature regimes brought on by the current climate change have influenced ecosystems globally. The consequences of climate change on plant phenology have been widely investigated during the last few years. However, the underlying causes of the timing of autumn phenology have not been fully clarified yet. Here, we...

Monitoring plant phenology is one of the means of detecting the response of vegetation to changing environmental conditions. One approach for the study of vegetation phenology from local to global scales is to apply satellite-based indices. We investigated the potential of phenological metrics from moderate resolution remotely sensed data to monito...

Climate warming is causing an increase in extreme hydrometeorological events in most parts of the world. This phenomenon is expected to continue and will affect the frequency and intensity of extreme precipitation events. Although bias correction in regional climate model simulations has also been used to assess changes in precipitation extremes at...

We present scenarios of how frequency of days with precipitation may change over the territory of Slovakia by 2050 and 2080 in the article. Climatic scenarios were created from three regional climate models EURO-CORDEX for the pessimistic emission scenario RCP8.5. We analysed the occurrence of the number of precipitation days for class intervals: 5...

In climatology, transitioning from conventional manual weather stations (MWS) to automatic weather stations (AWS) presents challenges in maintaining the homogeneity of long-term data series. At the Skalnaté Pleso Observatory (1778 m a.s.l., High Tatras), manual meteorological measurements have been conducted since 1943 using the same methods and de...

Harmonizing automatic with conventional meteorological measurements is essential to ensure continuity and homogeneity of long-term climate observations when considering the transition from manual (conventional) to automatic measurement regimes. In this paper, we analysed climate datasets from Skalnaté Pleso Observatory (1778m a.s.l.), situated at a...

Electrolyte leakage (EL) is the method commonly used to test the cell membrane integrity of plants under stress conditions. The cells of the leaf may be damaged by ozone (O 3 ) entering the intercellular space as an oxidative stress agent. The modified EL method was used to test the oxidative stability (OxS) of plant tissue against O 3 -induced oxi...

The onset and duration of phenological events are key indicators of the ecological impact of climate change on vegetation. During the flowering time in spring, late frosts are one of the most dangerous meteorological phenomena leading to damage to crops. During 1987–2016, we analyzed the occurrence and intensity of frosts during the period around t...

High altitudes have been exposed to enhanced levels of surface ozone (O3) concentrations over recent decades compared to the pre-industrial era. The responses of vegetation to this toxic pollutant are species-specific and depend on the climate conditions. In this paper, we explored the reaction of Pinus mugo (P. mugo) to O3-induced stress in the co...

This paper describes how we applied Bayesian inference to estimate parameters of the generalized extreme value distribution (GEV) of short-term rainfall intensities. The historical records from the self-registering rain gauge at Hurbanovo (Slovakia) covering the period 1961–2009 were used as input data. One of the insurmountable limitations of the...

This paper describes how we applied Bayesian inference to estimate parameters of the generalized extreme value distribution (GEV) of short-term rainfall intensities. The historical records from the self-registering rain gauge at Hurbanovo (Slovakia) covering the period 1961-2009 were used as input data. One of the insurmountable limitations of the...

The high ambient ozone concentrations cause impairing effects on vegetation leading to plant injuries. The potential ozone uptake to vegetation through open stomata can be quantified using stomatal conductance measurements under the local environmental conditions. This study compares the ozone stomatal conductance to vegetation obtained with a modi...

In the current alteration of temperature and snow cover regimes, the impacts of winter climate have received considerably less attention than those of the vegetation period. In this study, we present the results demonstrating the influence of the winter climate conditions on the Mountain pine (Pinus mugo Turra) communities in High Tatra Mts (Wester...

This study is focused on the research of selected Pinus species exposed to high ozone concentrations in the mountain environment. We noticed different values of modelled ozone doses (MOD) up-taken by Mountain pine (Pinus mugo Turra) in the High Tatra Mts (SK-HTMts) and Swiss stone pine (Pinus cembra L.) in the Alpes-Mercantour (FR-AlpMar) during th...

The onset of the phenological phases, such as budburst, leaf development, flowering, fruiting, and leaf senescence, is evoked by the genetically determined internal periodicity of vegetation and significantly affected by climate conditions. Therefore, the timing of the onset of phenological phases is considered as a good indicator of climate change...

In this study we analyzed the effect of selected biometeorological variables on the onset of phenophases in three beech stands in different climatic areas (warm, moderately warm and cold). We have focused on two phenophases - leaf unfolding and leaf colouring. Timing of both phenophases was identified visually and using series of MODIS satellite im...

Vydanie tejto publikácie podporila Agentúra Ministerstva školstva vedy a výskumu Slovenskej republiky pre štrukturálne fondy EÚ (ASFEU) z operačného programu Výskum a vývoj v rámci projektu ITMS: 26220120069 „Centrum excelentnosti pre podporu rozhodovania v lese a krajine“.

Vegetation index NDVI derived from satellite data MODIS (product MOD09) was used for monitoring of phenological phases of beech stands. The effect of leaves of upper story and undergrowth trees, understory vegetation, bark of thin and thick branches, trunk, and litter on NDVI value was identified and quantified for determination of the onset of phe...