A5030488912- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Plant responses to elevated CO2
- Atmospheric and Environmental Gas Dynamics
- Forest ecology and management
- Fire effects on ecosystems
- Species Distribution and Climate Change
- Peatlands and Wetlands Ecology
- Conservation, Biodiversity, and Resource Management
- Hydrocarbon exploration and reservoir analysis
- Remote Sensing in Agriculture
- Land Use and Ecosystem Services
- Insect-Plant Interactions and Control
University of Energy and Natural Resources
2017-2023
Czech Academy of Sciences, Global Change Research Institute
2017-2023
Mendel University in Brno
2020-2023
University of Eastern Finland
2020
Summary Trees are known to emit methane (CH 4 ) and nitrous oxide (N 2 O), with tropical wetland trees being considerable CH sources. Little is about especially N O exchange of growing in rain forests under nonflooded conditions. We determined stems six dominant tree species, cryptogamic stem covers, soils volcanic surfaces at the start rainy season a 400‐yr‐old lowland forest situated on basaltic lava flow (Réunion Island). aimed understand unknown role greenhouse gas fluxes these atypical...
Abstract It is assumed that the stimulatory effects of elevated CO2 concentration ([CO2]) on photosynthesis and growth may be substantially reduced by co-occurring environmental factors length treatment. Here, we present study exploring interactive three manipulated ([CO2], nitrogen supply water availability) physiological (gas-exchange chlorophyll fluorescence), morphological stoichiometric traits Norway spruce (Picea abies) saplings after 2 3 years treatment under natural field conditions....
Summary Trees are known to be atmospheric methane (CH 4 ) emitters. Little is about seasonal dynamics of tree CH fluxes and relationships environmental conditions. That prevents the correct estimation net annual forest exchange. We aimed explore contribution stem emissions determined mature European beech ( Fagus sylvatica stems adjacent soil in a typical temperate White Carpathians with high spatial heterogeneity moisture. The were sources, whereas was sink. High emitters showed clear...
In order to understand the effect of phytotoxic tropospheric ozone (O3) on terrestrial vegetation, we quantified impact current O3 concentration ([O3]) net ecosystem production (NEP) when compared conditions pre-industrial era. We and tested linear mixed-effects models based [O3] stomatal flux (Fsto). The managed ryegrass–clover (Lolium perenne Trifolium pratense) mixture was grown arable land in Czech Republic, Central Europe. Values Fsto were measured calculated resistance analogy,...
We investigated how reduced summer precipitation modifies photosynthetic responses of two model tree species—coniferous Norway spruce and broadleaved sessile oak—to changes in atmospheric CO2 concentration. Saplings were grown under mountainous conditions for growing seasons at ambient (400 μmol mol–1) elevated (700 Half not exposed to during the (June–August). After cultivation modified conditions, basic characteristics including light-saturated rate assimilation (Amax), stomatal...
In order to understand the impact of summer drought on dry deposition tropospheric ozone (O3), we compared severe and mild periods 2018 in a mountain Norway spruce forest at Bílý Kříž, Beskydy Mts. An eddy covariance technique was applied measure diurnal courses ecosystem O3 CO2 fluxes. Low recorded morning evening, while highest fluxes were during central hours day. Total (soil humidity 13%) significantly higher than period 19%). Our data indicate that high vapour pressure deficit low soil...
The report shares the background and experience executing a tree climbing workshop in Ghana. In most cases, canopy research Africa is conducted under umbrella of parachute science, leaving local scientists deprived access skills equipment. Consequently, tropical experiences closed so far as ecology concerned. May 2024, ten (10) early career researchers from Ghana were trained various rope techniques, thus inoculating community climbers setting stage for advancing on continent.
The study assesses the functional status of University Energy and Natural Resources’ (UENR) bat sanctuary by examining its floral diversity carbon stocks. Twenty-nine sampling points (plots) were randomly generated using ArcGIS random algorithm. Using a three-nest plot 100m2, 25m2, 1m2 quadrat, enumeration trees (DBH>10cm), saplings (>2cm DBH 0.05) between 10m buffer created core area with respect to species has provided valuable information on which will help promote conservation for...
<p>Trees are known to be sources of methane (CH<sub>4</sub>), an important greenhouse gas, into the atmosphere. However, still little is about seasonality tree stem CH<sub>4</sub> fluxes, particularly for dormant season, and impact environmental parameters on this gas exchange. This makes estimation net annual ecosystem fluxes difficult.</p><p>We determined seasonal dynamics exchange mature...