Prehliadanie podľa Autor "Kanianska, Radoslava"
Teraz sa zobrazuje 1 - 8 z 8
Výsledky na stránku
Možnosti zoradenia
Položka Carbon and nitrogen stocks in agricultural soils under different natural conditions and management in Slovakia(Multidisciplinary Digital Publishing Institute : Basel, 2024) Kizeková, Miriam; Kanianska, Radoslava; Jančová, Ľubica; Čunderlík, Jozef; Dugátová, ZuzanaSoil is a natural capital which supplies valuable ecosystem services including carbon and nitrogen storage. Agroecosystems play an important role in soil organic carbon (SOC) and soil total nitrogen (NT) accumulation. The aim of this study was to analyse SOC stock (SOCS) and NT stock (NTS) in relation to land use (arable land-AL, permanent grasslands-PG), management, soil depth, and selected soil properties of six soil subtypes (Rendzic Leptosol—LPrz, Dystric Cambisol—CMdy, Stagnic Cambisol—CMst, Haplic Fluvisol—FLha, Gleyic Fluvisol—FLgl, Haplic Chernozem—CHha) which are the most widespread in Slovakia. SOCS for a 50 cm deep soil profile ranged from 161 t.ha−1 in CHha to 59 t.ha−1 in FLgl in grasslands, and in arable lands from 111 t.ha−1 in CHha to 38 t.ha−1 in CMst. In grasslands, FLs and CMst showed the significantly lowest SOCS and NTS in comparison to CMdy, LPrz, and CHha. The mean soil NT content in arable land and grasslands was 2.21 g.kg−1 and 2.82 g.kg−1, respectively. ANOVA showed that soil subtype, land use, and site have significantly affected SOCS but not NTS. The correlation analysis revealed correlations between SOCS and NTS. SOCS was also correlated with C:N, pH, P, and K. This study should help to encourage practices to maintain soil C and soil properties and to ensure the sustainability of the functions of many soil types in Slovakia.Položka Effect of soil erosion on soil and plant properties with a consequence on related ecosystem services(Multidisciplinary Digital Publishing Institute : Basel, 2024) Kanianska, Radoslava; Kizeková, Miriam; Jančová, Ľubica; Čunderlík, Jozef; Dugátová, ZuzanaErosion is a process often driven by land management deteriorating or changing soil properties along the slopes, with consequences on ecosystem services. In a model area with Stagnic Cambisol, with two different types of land use (grassland—GL and arable land—AL), on an erosion transect in three different hillslope positions (upper, middle, and lower), in two different depths (0–10 and 35–45 cm), we observed the impact of soil erosion on soil and plant properties and ecosystem services by use of direct measurements and models. In GL, soil available potassium (SK), soil available phosphorus (SP) and pH increased both downward along the slope and in soil depth. A significantly (p < 0.01) higher content of plant nutrients (PN, PP, and PK) and shoot biomass was recorded in the lower part of the hillslope. In AL, soil parameters (pH, SOC, SN, and SOC/SN) reached the lowest values at the middle hillslope position at the shallowest depth. A relatively negligible annual average soil loss was recorded for GL (0.76 t/ha/yr). To the contrary, a very high rate of soil erosion was found for AL with maize silage. The actual soil moisture was 50% higher in GL compared to AL, which was reflected also in the soil water deficit index (SWDI) being more favorable for GL.Položka Ekosystémové služby(Belianum. Vydavateľstvo Univerzity Mateja Bela v Banskej Bystrici, 2016) Kanianska, Radoslava; Jaďuďová, Jana; Makovníková, Jarmila; Kizeková, Miriam; Tomaškin, JánĽudská existencia je závislá od ekosystémov, ich tovarov a služieb. Tovary poskytované ekosystémami zahŕňajú potraviny, krmoviny, textilné materiály, farmaceutické látky. Ekosystémové služby predstavujú napríklad udržiavanie hydrologického cyklu, filtráciu vody a vzduchu, reguláciu klímy, ukladanie a kolobeh živín, poskytovanie biotopov, kultúrnych či duchovných hodnôt. Bez týchto a mnohých ďalších tovarov a služieb nie je ľudský život a už vôbec nie ekonomický rozvoj reálny. V súčasnosti sa tlak na využívanie ekosystémov stále stupňuje a zanecháva na nich výraznú ekologickú stopu. Takáto situácia naznačuje, že doterajšia aplikácia vedeckých poznatkov do vzdelávania, manažérskych a rozhodovacích procesov je nedostatočná. Hľadajú sa nové metódy a postupy, zohľadňujúce vysokú hodnotu produktov a procesov prirodzene generovaných ekosystémami pre blaho človeka. Jedným je aj koncept ekosystémových služieb, v ktorom má popri ekosystémoch kľúčové postavenie človek a uspokojovanie jeho životných potrieb. Aby bol tento koncept úspešne realizovaný v praxi, je potrebné vychovať odborníkov, ktorí budú rozumieť podstate a fungovaniu ekosystémov a ich službám. Cieľom tejto vysokoškolskej učebnice je zosumarizovať základné východiská, podstatu a princípy ekosystémových služieb. Tie sú predstavené v zmysle kategorizácie ekosystémových služieb podľa Miléniového posudzovania ekosystémov, ktoré rozlišuje štyri hlavné kategórie ekosystémových služieb: zásobovacie, regulačné, kultúrne a podporné. Osobitná pozornosť je venovaná hodnoteniu a oceňovaniu ekosystémových služieb, ktoré vytvárajú oporu ich efektívneho manažérstva, s cieľom komplexnej ochrany ekosystémov a ich služieb pre budúce generácie.Položka Energetický potenciál a zásoby uhlíka horských lúk(Ústav ekológie lesa SAV : Nitra, 2025) Kizeková, Miriam; Britaňák, Norbert; Čunderlík, Jozef; Hanzes, Ľubomír; Pollák, Štefan; Vargová, Vladimíra; Jančová, Ľubica; Kanianska, RadoslavaMountain meadows are an important carbon pool and can also act as a source of bioenergy. The study focused on 4 grassland types (Lowland hay meadows, Mountain hay meadows, Wet grassland of sub-montane zones and Oversown grasslands) in 5 mountain ranges (Great Fatra Mts., Low Tatra Mts., Slovak Paradise Mts., Čergov Mts., Slánské Hills Mts.) of the Western Carpathians in Slovakia. The results showed that the total carbon stock of the mountain meadows equal to 2.120 x 103 tons. The calculated biomethane production ranged from 6,606 GJ in the Slovak Paradise Mts., to 122,888 GJ in the Low Tatra Mts., which had the largest area of grassland habitats. The theoretical energetic potential exceeded 1,139 x 103 GJ.Položka Filtračné a hydroregulačné ekosystémové služby pôd na nive rieky Oravy(Belianum. Vydavateľstvo Univerzity Mateja Bela v Banskej Bystrici, 2024) Kanianska, Radoslava; Benková, Nikola; Drímal, MarekPoložka Mountain grasslands as carbon sinks and energy hubs: a study of Western Carpathians in Slovakia(Nature Publishing Group : London, 2026) Kizeková, Miriam; Britaňák, Norbert; Čunderlík, Jozef; Hanzes, Ľubomír; Pollák, Štefan; Vargová, Vladimíra; Jančová, Ľubica; Kanianska, RadoslavaMountain grasslands are unique ecosystems that provide many ecosystems’ services. They are an important carbon pool and can also act as a source of bioenergy. The study focused on 4 grassland types (Lowland hay meadows, Mountain hay meadows, Wet grassland of sub-montane zones and Artificial grasslands) and 4 soil types (Fluvisols, Cambisols, Leptosols, Stagnosols) in 5 mountain ranges (Great Fatra Mts., Low Tatra Mts., Slovak Paradise Mts., Čergov Mts., Slánske Hills Mts.) of the Western Carpathians in Slovakia. The results showed that of the total carbon stock of the mountain ecosystems equal to 2.120 × 103 tons, 94% was stored in soil. The total carbon density followed this pattern: Fluvisols (100.64 ± 7.87 t/ha) > Stagnosols (84.17 ± 7.90 t/ha) > Leptosols (56.34 ± 6.20 t/ha) > Cambisols (55.43 ± 5.09 t/ha). Soil organic carbon density was also significantly affected by elevation, with the highest values between 600 and 900 m asl. (70.46 ± 4.23 t/ha). Grassland type significantly affected carbon density in living plant biomass, where Mountain hay meadows showed the significantly lowest values (P < 0.05) for carbon density in above-ground biomass (0.79 ± 0.05 t/ha) and below-ground biomass (2.24 ± 0.16 t/ha). The hierarchical clustering dendrogram revealed that the soils from the Low Tatra Mts. differed significantly from those of other mountain ranges and were characterized by high pH, very high soil organic carbon content, high levels of plant-available magnesium, and high C: N ratio in the soil. The calculated biomethane production ranged from 6,606 GJ in the Slovak Paradise Mts. for Lowland hay meadows, to 122,888 GJ in the Low Tatra Mts., which had the largest area of grassland habitats. The total theoretical energetic potential of biomethane production from all evaluated grassland habitats exceeded 1,139 GJ. The energetic potential values followed the following order: Slovak Paradise Mts. < Čergov Mts. < Slánske Hills Mts. < Great Fatra Mts. < Low Tatra Mts.Položka Phenological effects of artificial light at night on urban trees: A case study on microclimate and light pollution(Elsevier GmbH : Jena, 2026) Škvareninová, Jana; Kaniansky, Stanislav; Škvarenina, Jaroslav; Korená-Hillayová, Michaela; Kanianska, RadoslavaArtificial light at night (ALAN) is a pervasive but understudied stressor for urban trees, significantly affecting their phenology. The study investigates the impact of ALAN on autumn leaf colouring (LC10 % and LC100 %) in Acer pseudoplatanus, Acer platanoides, and Betula pendula in urban settings during 2016 and 2023. Using Linear Mixed Models, we analyzed phenological timing in illuminated (L) versus non-illuminated (N) crown parts, considering meteorological factors. Our results show that ALAN significantly delays the initial leaf colouring (LC10 %), suggesting an extension of the growing season. However, this effect did not significantly vary across species or crown parts, indicating a broad initial sensitivity. For complete leaf colouring (LC100 %), ALAN's direct influence diminished, with meteorological conditions emerging as primary drivers. Both species-specific traits and microclimatic differences within the crown consistently proved highly significant for both phenophases, highlighting inherent variability. Crucially, although ALAN's overall effect on species-specific senescence timing was not statistically distinct, species that naturally senesce later (e.g., Betula pendula) experienced disproportionately greater ALAN-induced delays in LC100 %. This strong positive correlation between natural senescence onset and ALAN-induced delay for complete leaf colouring underscores a critical vulnerability for late-season species. These findings emphasise the complex interplay between ALAN, meteorological factors, and species-specific responses in urban tree phenology. Understanding these dynamics is vital for sustainable urban trees management, guiding species selection and lighting design to mitigate negative impacts on tree health and urban ecosystem services.Položka Variability of grassland soils’ properties in comparison to soils of other ecosystems(Multidisciplinary Digital Publishing Institute : Basel, 2025) Kanianska, Radoslava; Kizeková, MiriamThe variety of natural conditions and land use patterns determine high variability of soil properties. This study focused on the analysis of chemical, physical, and biological properties of grassland (GL) soils (situated on slopes—GLS, and on alluvial plains—GLP) in comparison with soils of other ecosystems (arable land, forest land, riparian zone) in Central Slovakia. We applied an indicator’s method combined with models of these properties. The studies showed a large variability, more pronounced in GLS than in GLP. GLP soils were characterized by the highest number, biomass, and diversity of earthworms among all ecosystems. GL soils, in addition to FL soils, also have a relatively high capacity for water retention and C and N storage. However, we found an unfavorable state in available phosphorus, with GLS showing the lowest levels among compared ecosystems.