A5059992045- Geology and Paleoclimatology Research
- Peatlands and Wetlands Ecology
- Fire effects on ecosystems
- Marine and environmental studies
- Ancient and Medieval Archaeology Studies
- Climate change and permafrost
- Coastal wetland ecosystem dynamics
- Historical and Archaeological Studies
- Aeolian processes and effects
- Landslides and related hazards
- Botany and Plant Ecology Studies
- Geological formations and processes
- Soil and Environmental Studies
- Archaeology and ancient environmental studies
- Geological Formations and Processes Exploration
- Cryospheric studies and observations
- Forest Ecology and Biodiversity Studies
- Plant Ecology and Soil Science
- Pleistocene-Era Hominins and Archaeology
- Bryophyte Studies and Records
- Tree-ring climate responses
- Methane Hydrates and Related Phenomena
- Archaeological Research and Protection
- Lichen and fungal ecology
Babeș-Bolyai University
2016-2024
Charles University
2021
Abstract. Wildfire occurrence is influenced by climate, vegetation and human activities. A key challenge for understanding the risk of fires quantifying mediating effect on fire regimes. Here, we explore relative importance Holocene land cover, use, dominant functional forest type, climate dynamics biomass burning in temperate boreo-nemoral regions central eastern Europe over past 12 kyr. We used an extensive data set pollen sedimentary charcoal records, combination with simulations...
Abstract High-latitude peatlands are changing rapidly in response to climate change, including permafrost thaw. Here, we reconstruct hydrological conditions since the seventeenth century using testate amoeba data from 103 high-latitude peat archives. We show that 54% of have been drying and 32% wetting over this period, illustrating complex ecohydrological dynamics high latitude their highly uncertain responses a warming climate.
Abstract. Forest steppes are dynamic ecosystems, highly susceptible to changes in climate, disturbances and land use. Here we examine the Holocene history of European forest steppe ecotone lower Danube Plain better understand its sensitivity climate fluctuations, fire human impact, timing transition into a cultural steppe. We used multi-proxy analyses (pollen, n-alkanes, coprophilous fungi, charcoal geochemistry) 6000-year sequence from Lake Oltina (southeastern Romania) combined with...
Abstract. Wildfire is the most common disturbance type in boreal forests and can trigger significant changes forest composition. Waterlogging peatlands determines degree of tree cover depth burnt horizon associated with wildfires. However, interactions between peatland moisture, vegetation composition flammability, fire regime forested Eurasia remain largely unexplored, despite their huge extent regions. To address this knowledge gap, we reconstructed Holocene regime, composition, hydrology...
Lowering of the water table and substantial drying are observed in peatlands worldwide. A significant European last 200–300 years influenced vegetation, lowered carbon storage potential peatlands, modified microbial diversity. Here, we reconstructed high resolution hydrological changes, local extra-local vegetation composition, fire activity based on a peat core from Sphagnum-dominated peatland located young glacial landscape Central Eastern Europe, NE Poland. The ca. 1500 history Jaczno bog...
We explored the past environmental history inferred from a fen located in northwestern Poland, historically important location. Pollen, plant macrofossils, micro- and macrocharcoal particles, non-pollen palynomorphs were analyzed continuously 1-cm resolution, supplemented with archeological data historical written sources. The last 1200-year of was supported accelerator mass spectrometry (AMS) radiocarbon (14C) dating (19 dates per 172 cm profile) validated by 59 210 Pb dates. Our research...
During European states' development, various past societies utilized natural resources, but their impact was not uniformly spatially and temporally distributed. Considerable changes resulted in landscape fragmentation, especially during the Middle Ages. Changes state advances that affected local economy significantly drove trajectories of ecosystems' development. The legacy major from pristine forest to farming is visible archives as novel ecosystems. Here, we present a high-resolution...
Peatlands are a significant landscape component in temperate mountain ranges and serve multiple functions. However, many peatlands were damaged, altered, or drained over the past centuries, knowledge about their development is needed for protection sustainable management. In our study, we analysed two peat cores from bog site located Black Forest (Southwest Germany) using high-resolution multi-proxy palaeoecological analysis, including biological indicators (plant macrofossils, pollen,...
Abstract Aim In recent decades, a surge in the number of significant and uncontrolled wildfires has occurred worldwide. Global warming may amplify this trend threaten most ecosystems Deciduous forests are characterized by high plant diversity, understanding their long‐term dynamics is crucial to anticipate changes these during ongoing global warming. The aim study understand how European beech have colonized inner Eastern Carpathians fire regime human activities affected biodiversity....
This paper investigates the possibility of reconstructing palaeohydrological changes in an active Sphagnum peat bog from north-western Romania using testate amoebae fauna and organic matter content determined by loss on ignition (LOI). In total 28 taxa were identified which 11 frequent enough to present a remarkable ecological significance. Based relative abundance these nine zones identified, crossing very wet dry climate conditions. The periods are characterized like Centropyxis cassis,...
Abstract. Forest steppes are dynamic ecosystems, highly susceptible to changes in climate and land use. Here we examine the Holocene history of European forest steppe ecotone Lower Danube Plain better understand its sensitivity fluctuations human impact, timing transition into a cultural steppe. We used multi-proxy analyses (pollen, n-alkane, coprophilous fungi, charcoal, geochemistry) 6000-year sequence from Lake Oltina (SE Romania), combined with REVEALS model quantitative vegetation...
Abstract. Wildfire occurrence is influenced by climate, vegetation and human activities. A key challenge for understanding fire-climate-vegetation interactions to quantify the effect has in mediating fire regime. Here, we explore relative importance of Holocene land cover dominant functional forest type, climate dynamics on biomass burned temperate boreo-nemoral regions Central Eastern Europe over past 12 ka BP years. We used an extensive data set pollen sedimentary charcoal records,...
Abstract Peatland and forest ecosystems located in the Bieszczady Mts. (Carpathians, Central Europe) have been affected by human activity since Neolithic, with this impact intensifying over time. We conducted long‐term studies to: (i) determine past peatland development current ecological state; (ii) assess role of different factors that influenced ecosystem last 3750 years; (iii) natural reference conditions as a basis for restoration degraded mountain bogs forests region. High‐resolution...
Grass-dominated ecosystems, encompassing steppe, forest-steppe, savanna, woodlands, and shrublands, cover approximately 40% of the global land surface are critical for biodiversity, carbon storage, livelihoods, culture. Grassland ecosystems often assumed to be dominant in regions that too cold or dry tree growth have limited soil development. Many grassy are, however, found warm wet climates could support forests. This pattern may explained by also maintained consumers biomass, such as fire...
Considering the importance of hydroclimate conditions in development both natural and anthropic environments, a better understanding past is imperative. Keeping this as main trajectory, objective our study reconstruction environmental Central Romania over last two millennia, by high-resolution analysis peat sequence from Arpaşu de Sus (Făgăraș Depression, Southern Transylvania). We used biotic proxies (testate amoebae, pollen spores) to quantitatively...