This page has only limited features, please log in for full access.

Unclaimed
Jan Popelka
Department of Environmental Chemistry and Technology, Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech Republic

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 05 February 2021 in Agronomy
Reads 0
Downloads 0

Bioenergy crops such as Miscanthus × giganteus are foreseeable as an alternative source to replace fossil fuel and reduce greenhouse gas emissions. They are also assessed as an environment-friendly solution for polluted, marginal and low-quality agricultural soils. Several studies had been launched on soil organic carbon sequestration potentials of miscanthus culture along with its impacts on restoring soil functionality, most of which focus on the long-term basis of the plant’s cultivation. Nevertheless, information concerning the short term impacts as well as the situation in Czechia is still scarce. In this context, a field experiment was launched in 2017 in a poor-quality agricultural land in the city of Chomutov (North-Western Czechia) to compare the impacts of the perennial C4 miscanthus with an annual C3 forage crop (wheat) on the soil carbon stocks as well as enhancing its functionality. Results through the 0–30 cm soil profile examination showed that miscanthus plants played a role in improving the studied soil physico-chemical (bulk density and soil organic carbon concentrations) and biological (Phospholipid fatty acids stress indicator, basal respiration and fluorescein diacetate hydrolytic activity) parameters. The naturally occurring δ13C concentrations were used to evaluate the direct plant contribution to the total soil organic carbon (SOC) stocks and revealed considerable miscanthus contribution all over the detected soil layers (1.98 ± 0.21 Mg C. ha−1 yr−1) after only 3 growing seasons. It is thus suggested that the C4 perennial miscanthus possess remarkable prospects for SOC sequestration and restoring degraded lands.

ACS Style

Karim Suhail Al Souki; Hana Burdová; Jakub Trubač; Jiří Štojdl; Pavel Kuráň; Sylvie Kříženecká; Iva Machová; Karel Kubát; Jan Popelka; Hana Auer Malinská; Diana Nebeská; Sergej Ust’Ak; Roman Honzík; Josef Trögl. Enhanced Carbon Sequestration in Marginal Land Upon Shift towards Perennial C4Miscanthus × giganteus: A Case Study in North-Western Czechia. Agronomy 2021, 11, 293 .

AMA Style

Karim Suhail Al Souki, Hana Burdová, Jakub Trubač, Jiří Štojdl, Pavel Kuráň, Sylvie Kříženecká, Iva Machová, Karel Kubát, Jan Popelka, Hana Auer Malinská, Diana Nebeská, Sergej Ust’Ak, Roman Honzík, Josef Trögl. Enhanced Carbon Sequestration in Marginal Land Upon Shift towards Perennial C4Miscanthus × giganteus: A Case Study in North-Western Czechia. Agronomy. 2021; 11 (2):293.

Chicago/Turabian Style

Karim Suhail Al Souki; Hana Burdová; Jakub Trubač; Jiří Štojdl; Pavel Kuráň; Sylvie Kříženecká; Iva Machová; Karel Kubát; Jan Popelka; Hana Auer Malinská; Diana Nebeská; Sergej Ust’Ak; Roman Honzík; Josef Trögl. 2021. "Enhanced Carbon Sequestration in Marginal Land Upon Shift towards Perennial C4Miscanthus × giganteus: A Case Study in North-Western Czechia." Agronomy 11, no. 2: 293.

Journal article
Published: 12 June 2019 in Sustainability
Reads 0
Downloads 0

Fertilization is a key factor for sustaining productivity in agroecosystems. A long-term experiment in cambisol following periodical application of several types of fertilization has been running at the experimental site since 1954. In this study, we determined the impact of applied inorganic and/or organic fertilizers on the activity of soil enzymes and on the structure of microorganisms at depths of 0–30 cm and 30–60 cm. Single-factor comparison showed that use of inorganic and/or organic fertilizer had an insignificant effect on the activities of soil enzymes (at depths 0–30 cm and 30–60 cm) and also on the structure of microbial communities at both depths studied. Only soil respirations exhibited stimulation by combined fertilization. The results, irrespective of sampling depth (0–60 cm), showed that application of combined organic and inorganic fertilization stimulated the activity of glucosidases and use of inorganic fertilizer inhibited the activity of arylsulphatases. Respirations were stimulated by application of organic fertilizer and combined fertilization. Nevertheless, principal component analyses, which calculate with multidimensional data, revealed differences in samples treated by sole mineral fertilizer compared to other variants, especially in the lower layer. In general, our results indicate that use of combined fertilization may improve biological characteristics in deeper parts of soil profile and possibly increase biological activity in agroecosystems.

ACS Style

Ladislav Holík; Lukáš Hlisnikovský; Roman Honzík; Josef Trögl; Hana Burdová; Jan Popelka. Soil Microbial Communities and Enzyme Activities after Long-Term Application of Inorganic and Organic Fertilizers at Different Depths of the Soil Profile. Sustainability 2019, 11, 3251 .

AMA Style

Ladislav Holík, Lukáš Hlisnikovský, Roman Honzík, Josef Trögl, Hana Burdová, Jan Popelka. Soil Microbial Communities and Enzyme Activities after Long-Term Application of Inorganic and Organic Fertilizers at Different Depths of the Soil Profile. Sustainability. 2019; 11 (12):3251.

Chicago/Turabian Style

Ladislav Holík; Lukáš Hlisnikovský; Roman Honzík; Josef Trögl; Hana Burdová; Jan Popelka. 2019. "Soil Microbial Communities and Enzyme Activities after Long-Term Application of Inorganic and Organic Fertilizers at Different Depths of the Soil Profile." Sustainability 11, no. 12: 3251.

Journal article
Published: 11 March 2019 in Environmental Pollution
Reads 0
Downloads 0

This study aims to summarize results on potential phytomanagement of two metal(loid)-polluted military soils using Miscanthus x giganteus. Such an option was tested during 2-year pot experiments with soils taken from former military sites in Sliač, Slovakia and Kamenetz-Podilsky, Ukraine. The following elements were considered: As, Cu, Fe, Mn, Pb, Sr, Ti, Zn and Zr. M. x giganteus showed good growth at both military soils with slightly higher maximum shoot lengths in the second year of vegetation. Based on Principal Component Analysis similarities of metal(loid) uptake by roots, stems and leaves were summarized. Major part of the elements remained in M. x giganteus roots and rather limited amounts moved to the aerial parts. Levels taken up decreased in the second vegetation year. Dynamics of foliar metal(loid) concentrations divided the elements in two groups: essential elements required for metabolism (Fe, Mn, Cu, and Zn) and non-essential elements without any known metabolic need (As, Sr, Ti, and Zr). Fe, Mn, Ti and Sr showed similar S-shaped uptake curve in terms of foliar concentrations (likely due to dilution in growing biomass), while Cu exhibited a clear peak mid-season. Behavior of Zn was in between. Foliar Zr and As concentrations were below detection limit. The results illustrated a good potential of M. x giganteus for safely growing on metal-polluted soils taken from both military localities.

ACS Style

Valentina Pidlisnyuk; Larry Erickson; Tatyana Stefanovska; Jan Popelka; Ganga Hettiarachchi; Lawrence Davis; Josef Trögl. Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus. Environmental Pollution 2019, 249, 330 -337.

AMA Style

Valentina Pidlisnyuk, Larry Erickson, Tatyana Stefanovska, Jan Popelka, Ganga Hettiarachchi, Lawrence Davis, Josef Trögl. Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus. Environmental Pollution. 2019; 249 ():330-337.

Chicago/Turabian Style

Valentina Pidlisnyuk; Larry Erickson; Tatyana Stefanovska; Jan Popelka; Ganga Hettiarachchi; Lawrence Davis; Josef Trögl. 2019. "Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus." Environmental Pollution 249, no. : 330-337.

Journal article
Published: 07 March 2019 in Water
Reads 0
Downloads 0

This article presents the development of selected heavy metals contained in river sediments at selected sites along the Bílina River. It describes the situation before the large flood in 2013, the situation just after that flood, the situation approximately 1 year after the flood, and 4 years after the flood. The contents of selected heavy metals from industrial pollution originating from transport and industry located along the river flow were monitored. Since the situation in the river before the flood was also known, it was possible to assess the impact of the 2013 flood on the distribution of heavy metals in the settled sediments. The results obtained show that the heavy metal content has changed significantly. During the flood in 2013 there was an increase in the concentration of almost all the monitored elements compared to the situation before the flood and one year after the flood. This could be caused by the churning of sediments as a result of the flood. The only exception was Cd, the concentration of which did not change significantly. However, Cd is present in the sediment samples at a low concentration at the limit of quantification (LOQ), so the change may not be noticeable. In 2017, four years after the flood, an increase in the concentration of all the monitored elements was found. The highest increase in the content of the monitored elements was observed at the sites with the highest industrial pollution. Following the flood in 2014, there was a situation where no significant differences were observed in the content of metals at the individual sampling points in contrast to the values obtained in 2012, 2013, and 2017. As a result of sediment churning and re-settlement during and after the flood, the sediment became homogenized along the entire river flow. After a longer period of time that was not accompanied by floods, a significant increase in the heavy metal concentration was observed due to anthropogenic pollution. The results show that the effect of flooding is only temporal and that anthropogenic pollution is more important than the impact of floods.

ACS Style

Jiří Čmelík; Taťjána Brovdyová; Josef Trögl; Martin Neruda; Matěj Kadlečík; Jan Pacina; Jan Popelka; Alexander S. Sirotkin. Changes in the Content of Heavy Metals in Bílina River during 2012–2017: Effects of Flood and Industrial Inputs. Water 2019, 11, 481 .

AMA Style

Jiří Čmelík, Taťjána Brovdyová, Josef Trögl, Martin Neruda, Matěj Kadlečík, Jan Pacina, Jan Popelka, Alexander S. Sirotkin. Changes in the Content of Heavy Metals in Bílina River during 2012–2017: Effects of Flood and Industrial Inputs. Water. 2019; 11 (3):481.

Chicago/Turabian Style

Jiří Čmelík; Taťjána Brovdyová; Josef Trögl; Martin Neruda; Matěj Kadlečík; Jan Pacina; Jan Popelka; Alexander S. Sirotkin. 2019. "Changes in the Content of Heavy Metals in Bílina River during 2012–2017: Effects of Flood and Industrial Inputs." Water 11, no. 3: 481.

Journal article
Published: 16 January 2019 in ISPRS International Journal of Geo-Information
Reads 0
Downloads 0

As fluvial pollution may endanger the quality of water and solids transported by rivers, mapping and evaluation of historically polluted fluvial sediments is an urgent topic. The Ploučnice River and its floodplain were polluted by local uranium mining from 1971–1989. We have studied this river since 2013 using a combination of diverse methods, including geoinformatics, to identify pollution hotspots in floodplains and to evaluate the potential for future reworking. Archival information on pollution history and past flooding was collected to understand floodplain dynamics and pollution heterogeneity. Subsequently, a digital terrain model based on laser scanning data and data analysis were used to identify the sites with river channel shifts. Finally, non-invasive geochemical mapping was employed, using portable X-ray fluorescence and gamma spectrometers. The resulting datasets were processed with geostatistical tools. One of the main outputs of the study was a detailed map of pollution distribution in the floodplain. The results showed a relationship between polluted sediment deposition, past channel shifts and floodplain development. We found that increased concentration of pollution occurred mainly in the cut-off meanders and lateral channel deposits from the mining period, the latter in danger of reworking (reconnecting to the river) in the coming decades.

ACS Style

Jitka Elznicová; Tomáš Matys Grygar; Jan Popelka; Martin Sikora; Petr Novák; Michal Hošek. Threat of Pollution Hotspots Reworking in River Systems: Case Study of the Ploučnice River (Czech Republic). ISPRS International Journal of Geo-Information 2019, 8, 37 .

AMA Style

Jitka Elznicová, Tomáš Matys Grygar, Jan Popelka, Martin Sikora, Petr Novák, Michal Hošek. Threat of Pollution Hotspots Reworking in River Systems: Case Study of the Ploučnice River (Czech Republic). ISPRS International Journal of Geo-Information. 2019; 8 (1):37.

Chicago/Turabian Style

Jitka Elznicová; Tomáš Matys Grygar; Jan Popelka; Martin Sikora; Petr Novák; Michal Hošek. 2019. "Threat of Pollution Hotspots Reworking in River Systems: Case Study of the Ploučnice River (Czech Republic)." ISPRS International Journal of Geo-Information 8, no. 1: 37.

Journal article
Published: 20 December 2018 in Geomorphology
Reads 0
Downloads 0

Floodplains are one of the most complex sedimentary environments used for the reconstruction of human impacts on fluvial deposition and catchment pollution. Studies of polluted floodplains require an interdisciplinary approach, including tools from geomorphology, geophysics, and geochemistry. The spatial distribution of pollutants can reflect not only pollution history but also post-depositional transfers of pollutants. The Litavka River (SW Czech Republic) was impacted by historical mining and processing of Ag-Pb-Zn-Sb sulfidic ores, which resulted in a severely polluted floodplain. Previous studies revealed that nearly all of the floodplain deposits of the Litavka River downstream from the ore district are polluted, indicating massive floodplain aggradation. Our aim was to decipher the role of aggradation in floodplain development by investigating the pollutant distribution in the floodplain fill. Another important goal was to distinguish polluted (modern) sediments from secondarily polluted sediments (which were previously pristine) caused by extensive lateral and vertical post-depositional chemical migration of risk elements within the floodplain fill. The floodplain topography was characterized via a digital terrain model (DTM); the internal structure of the floodplain was determined by electrical resistivity tomography (ERT). Sediment samples were collected from hand-drilled cores across the floodplain along the ERT line, and their elemental composition and magnetic susceptibility were analysed. Dating of sediments was performed via optically stimulated luminescence (OSL). The concentrations of Zn, Pb and Cd, along with values of magnetic susceptibility decreased with increasing distance from the current river channel. However, the spatial patterns of risk elements were more complicated than expected in a fluvial sedimentary environment. Inter-element relationships of risk elements exhibited a complex pattern, with abundant outliers that required the use of robust regression. The results helped distinguish the geochemical difference between proximal and distal floodplains, and to identify zones of anomalous inter-element ratios attributed to post-depositional element migration. The observed migration was significant, and not only vertical but horizontal, spanning a distance of approximately half the floodplain width. Metal migration explains why unpolluted sediments are practically missing from the floodplain fill of the Litavka River. Use of pollution chemostratigraphy, without considering the possibility of post-depositional migration of risk elements, could lead to overestimation of the volume of younger sediments deposited directly within the floodplain and to overestimation of the role of aggradation processes.

ACS Style

K. Kotková; T. Nováková; Š. Tůmová; T. Kiss; J. Popelka; M. Faměra. Migration of risk elements within the floodplain of the Litavka River, the Czech Republic. Geomorphology 2018, 329, 46 -57.

AMA Style

K. Kotková, T. Nováková, Š. Tůmová, T. Kiss, J. Popelka, M. Faměra. Migration of risk elements within the floodplain of the Litavka River, the Czech Republic. Geomorphology. 2018; 329 ():46-57.

Chicago/Turabian Style

K. Kotková; T. Nováková; Š. Tůmová; T. Kiss; J. Popelka; M. Faměra. 2018. "Migration of risk elements within the floodplain of the Litavka River, the Czech Republic." Geomorphology 329, no. : 46-57.

Communication
Published: 02 November 2018 in Sustainability
Reads 0
Downloads 0

Growing a second generation energetic plant Miscanthus x giganteus (Mxg) in former military sites appears to be a promising way to use such areas with synergic phytoremediation of contaminants (organic pollutants, potential toxic metals). Effect of Mxg growth on soil microbial communities during a two-year pot experiment with real post-military soil (Sliač, Slovakia) and the effect of potential toxic metal concentration was studied by analyses of microbial activities and phospholipid fatty acids (PLFA). Year-on-year positive changes in microbial community structure and state were detected (higher ratios of G+/G− bacteria and fungal/bacterial PLFA, and a decrease of stress indicators trans/cis and cy/pre PLFA). Portion of gram-positive bacteria correlated negatively with potential toxic metal concentrations; however, the concentration of potential toxic metals was not identified as the main stress factor—the access to bioavailable nutrients was more important. Overall, Mxg growth generally exhibited a positive effect on soil microorganisms.

ACS Style

Diana Nebeská; Josef Trögl; Valentina Pidlisnyuk; Jan Popelka; Petra Veronesi Dáňová; Sergej Usťak; Roman Honzík. Effect of Growing Miscanthus x giganteus on Soil Microbial Communities in Post-Military Soil. Sustainability 2018, 10, 4021 .

AMA Style

Diana Nebeská, Josef Trögl, Valentina Pidlisnyuk, Jan Popelka, Petra Veronesi Dáňová, Sergej Usťak, Roman Honzík. Effect of Growing Miscanthus x giganteus on Soil Microbial Communities in Post-Military Soil. Sustainability. 2018; 10 (11):4021.

Chicago/Turabian Style

Diana Nebeská; Josef Trögl; Valentina Pidlisnyuk; Jan Popelka; Petra Veronesi Dáňová; Sergej Usťak; Roman Honzík. 2018. "Effect of Growing Miscanthus x giganteus on Soil Microbial Communities in Post-Military Soil." Sustainability 10, no. 11: 4021.

Journal article
Published: 09 October 2018 in Applied Sciences
Reads 0
Downloads 0

At present, there is great demand for new resistant and metabolically active strains of biodegrading bacteria capable of degrading high concentrations of petroleum pollutants. In this study, we undertook a series of pot-based biodegradation experiments on soil from a petroleum refinery lagoon heavily polluted with aliphatic hydrocarbons (81.6 ± 2.5 g·kg−1 dry weight) and metals. Periodical bioaugmentation with either a mixture of isolated degraders identified as Bacillus sp. and Ochrobactrum sp. or biostimulation with nutrient medium, singly or in combination, did not produce any significant decrease in hydrocarbons, even after 455 days. Inoculation with Gordonia rubripertincta CWB2 and Rhodococcus erythropolis S43 in iron-limited media, however, resulted in a significant decrease in hydrocarbons 45 days after bioaugmentation. These actinobacterial strains, therefore, show significant potential for bioremediation of such highly polluted soils.

ACS Style

Josef Trögl; Catherine Oluwakemi Esuola; Sylvie Kříženecká; Pavel Kuráň; Lenka Seidlová; Petra Veronesi-Dáňová; Jan Popelka; Olubukola Oluranti Babalola; Pavel Hrabák; Marie Czinnerová; Eva Kakosová; Alena Ševců; Dirk Tischler. Biodegradation of High Concentrations of Aliphatic Hydrocarbons in Soil from a Petroleum Refinery: Implications for Applicability of New Actinobacterial Strains. Applied Sciences 2018, 8, 1855 .

AMA Style

Josef Trögl, Catherine Oluwakemi Esuola, Sylvie Kříženecká, Pavel Kuráň, Lenka Seidlová, Petra Veronesi-Dáňová, Jan Popelka, Olubukola Oluranti Babalola, Pavel Hrabák, Marie Czinnerová, Eva Kakosová, Alena Ševců, Dirk Tischler. Biodegradation of High Concentrations of Aliphatic Hydrocarbons in Soil from a Petroleum Refinery: Implications for Applicability of New Actinobacterial Strains. Applied Sciences. 2018; 8 (10):1855.

Chicago/Turabian Style

Josef Trögl; Catherine Oluwakemi Esuola; Sylvie Kříženecká; Pavel Kuráň; Lenka Seidlová; Petra Veronesi-Dáňová; Jan Popelka; Olubukola Oluranti Babalola; Pavel Hrabák; Marie Czinnerová; Eva Kakosová; Alena Ševců; Dirk Tischler. 2018. "Biodegradation of High Concentrations of Aliphatic Hydrocarbons in Soil from a Petroleum Refinery: Implications for Applicability of New Actinobacterial Strains." Applied Sciences 8, no. 10: 1855.

Journal article
Published: 01 June 2018 in PJCT
Reads 0
Downloads 0

Peculiarities of metals uptake by the biofuel crop Miscanthus x giganteus were explored during plant growth at soil from the military site (Sliač, Slovakia). The experiment was carried out in greenhouse during two vegetation seasons. Research soil was predominantly elevated in Fe and Ti, while other metals (As, Cu, Mn, Sr, Zn and Zr) were presented at order of magnitude lower concentrations. No inhibition of plant growth was observed. The calculated Bioconcentration Factor showed that levels of metals’ accumulation by plant roots, stems and leaves were independent of metals’ concentrations in the soil. The accumulation of metals by stems and leaves was much lower than by roots. As, Zr, Ti were almost not accumulated by stems and leaves during both seasons; accumulation of Cu, Fe, Mn, Zn and Sr was not essential which confirmed that biomass of M. x giganteus might be processed for the energy purpose.

ACS Style

Valentina V. Pidlisnyuk; Larry E. Erickson; Josef Trögl; Pavlo Shapoval; Jan Popelka; Lawrence C. Davis; Tetyana R. Stefanovska; Ganga M. Hettiarachchi. Metals uptake behaviour in Miscanthus x giganteus plant during growth at the contaminated soil from the military site in Sliač, Slovakia. PJCT 2018, 20, 1 -7.

AMA Style

Valentina V. Pidlisnyuk, Larry E. Erickson, Josef Trögl, Pavlo Shapoval, Jan Popelka, Lawrence C. Davis, Tetyana R. Stefanovska, Ganga M. Hettiarachchi. Metals uptake behaviour in Miscanthus x giganteus plant during growth at the contaminated soil from the military site in Sliač, Slovakia. PJCT. 2018; 20 (2):1-7.

Chicago/Turabian Style

Valentina V. Pidlisnyuk; Larry E. Erickson; Josef Trögl; Pavlo Shapoval; Jan Popelka; Lawrence C. Davis; Tetyana R. Stefanovska; Ganga M. Hettiarachchi. 2018. "Metals uptake behaviour in Miscanthus x giganteus plant during growth at the contaminated soil from the military site in Sliač, Slovakia." PJCT 20, no. 2: 1-7.

Journal article
Published: 02 February 2018 in Sustainability
Reads 0
Downloads 0

In the Protected Landscape Area “Labské pískovce” (Czech Republic), there are many sandstone caves accessible by permission only and where climbing equipment is commonly required. The tradition of visiting the caves dates back to turn of the 19th and 20th centuries, and visitors traditionally record their visits in log-books. We have gathered attendance data from 12 caves from log-books and via survey (2-year form collection period). The attendance varied from less than 10 to ~650 visitors annually. Signs of inadequate behavior of visitors were observed, especially waste disposal and smoking in the caves. Sediment step-compression increased significantly the ratios of fungi/bacteria and gram-positive to gram-negative (G+/G−) phospholipid fatty acids (PLFA) as well as PLFA of actinobacteria and activities of sediment phosphatases, glucosidases, and peroxidases. The number of visitors was correlated positively with the G+/G− ratio and sediment nutrients but negatively with sediment moisture and the activity of peroxidases. The results indicate a significant effect of attendance on sediment microbial communities, most likely caused by the import of nutrients into caves. Hence, reconsideration of the cave attendance policy is recommended.

ACS Style

Jaroslav Kukla; Michal Holec; Josef Trögl; Diana Holcová; Dagmar Hofmanová; Pavel Kuráň; Jan Popelka; Jan Pacina; Sylvie Kříženecká; Sergej Usťak; Roman Honzík. Tourist Traffic Significantly Affects Microbial Communities of Sandstone Cave Sediments in the Protected Landscape Area “Labské Pískovce” (Czech Republic): Implications for Regulatory Measures. Sustainability 2018, 10, 396 .

AMA Style

Jaroslav Kukla, Michal Holec, Josef Trögl, Diana Holcová, Dagmar Hofmanová, Pavel Kuráň, Jan Popelka, Jan Pacina, Sylvie Kříženecká, Sergej Usťak, Roman Honzík. Tourist Traffic Significantly Affects Microbial Communities of Sandstone Cave Sediments in the Protected Landscape Area “Labské Pískovce” (Czech Republic): Implications for Regulatory Measures. Sustainability. 2018; 10 (2):396.

Chicago/Turabian Style

Jaroslav Kukla; Michal Holec; Josef Trögl; Diana Holcová; Dagmar Hofmanová; Pavel Kuráň; Jan Popelka; Jan Pacina; Sylvie Kříženecká; Sergej Usťak; Roman Honzík. 2018. "Tourist Traffic Significantly Affects Microbial Communities of Sandstone Cave Sediments in the Protected Landscape Area “Labské Pískovce” (Czech Republic): Implications for Regulatory Measures." Sustainability 10, no. 2: 396.

Journal article
Published: 08 October 2017 in Geoinformatics FCE CTU
Reads 0
Downloads 0

The archival aerial photographs are widely used for landscape change analysis, settlement identification or georelief reconstructions. The large archive of old aerial photographs is available for the whole Czech Republic and these data are often used by scientists, historians, students, etc. The quality of the datasets (orthophoto, digital surface models) resulting from archival aerial images processing is crucial for the ongoing analyses. The accuracy test of digital surface models derived from archival aerial images origintaing from 1938 and 1953 is presented within this paper. These two timelines were chosen because they preserve the landscape structure in the begining of the heavy indudstrialization of the Czech Republic.

ACS Style

Jan Pacina; Jan Popelka. Accuracy of Digital Surface Models derived from archival aerial photographs. Case study for the Czech Republic. Geoinformatics FCE CTU 2017, 16, 53 -62.

AMA Style

Jan Pacina, Jan Popelka. Accuracy of Digital Surface Models derived from archival aerial photographs. Case study for the Czech Republic. Geoinformatics FCE CTU. 2017; 16 (1):53-62.

Chicago/Turabian Style

Jan Pacina; Jan Popelka. 2017. "Accuracy of Digital Surface Models derived from archival aerial photographs. Case study for the Czech Republic." Geoinformatics FCE CTU 16, no. 1: 53-62.

Journal article
Published: 01 April 2017 in Chemical Engineering Journal
Reads 0
Downloads 0
ACS Style

Eva Kakosová; Pavel Hrabák; Miroslav Černík; Vít Novotný; Marie Czinnerová; Josef Trögl; Jan Popelka; Pavel Kuráň; Lenka Zoubková; Ľuboš Vrtoch. Effect of various chemical oxidation agents on soil microbial communities. Chemical Engineering Journal 2017, 314, 257 -265.

AMA Style

Eva Kakosová, Pavel Hrabák, Miroslav Černík, Vít Novotný, Marie Czinnerová, Josef Trögl, Jan Popelka, Pavel Kuráň, Lenka Zoubková, Ľuboš Vrtoch. Effect of various chemical oxidation agents on soil microbial communities. Chemical Engineering Journal. 2017; 314 ():257-265.

Chicago/Turabian Style

Eva Kakosová; Pavel Hrabák; Miroslav Černík; Vít Novotný; Marie Czinnerová; Josef Trögl; Jan Popelka; Pavel Kuráň; Lenka Zoubková; Ľuboš Vrtoch. 2017. "Effect of various chemical oxidation agents on soil microbial communities." Chemical Engineering Journal 314, no. : 257-265.

Journal article
Published: 01 November 2016 in Journal of Geochemical Exploration
Reads 0
Downloads 0
ACS Style

T. Matys Grygar; J. Popelka. Revisiting geochemical methods of distinguishing natural concentrations and pollution by risk elements in fluvial sediments. Journal of Geochemical Exploration 2016, 170, 39 -57.

AMA Style

T. Matys Grygar, J. Popelka. Revisiting geochemical methods of distinguishing natural concentrations and pollution by risk elements in fluvial sediments. Journal of Geochemical Exploration. 2016; 170 ():39-57.

Chicago/Turabian Style

T. Matys Grygar; J. Popelka. 2016. "Revisiting geochemical methods of distinguishing natural concentrations and pollution by risk elements in fluvial sediments." Journal of Geochemical Exploration 170, no. : 39-57.

Journal article
Published: 09 March 2016 in Sustainability
Reads 0
Downloads 0

Soil is a key part of a biotope and microorganisms are dominant components contributing to soil functions. Conversely, established methods for valuation of biotopes according to Natura 2000 rely predominantly on the communities living on the surface. Here, we aimed to assess soil microbial biomass and community structure on five localities with range of biotope values by means of phospholipid fatty acid (PLFA) profiling. PLFA figures were affected both by sampling season (spring vs. autumn) and locality. In spring, the living microbial biomass (estimated by PLFAtot) exhibited poor correlation to biotope values. These were, on the contrary, correlated to trans/cis PLFA, an indicator of microbial stress, (i.e., lower stress in higher-rated biotopes), and fungal/bacterial PLFA (i.e., higher-rated biotopes contained more fungi). The attempt to model biotope values from microbial characteristics explained a maximum of ~50% of the variability; the best predictors were the trans/cis stress indicator, percentage of actinobacterial PLFA, and ratio of PLFA of Gram-positive to Gram-negative bacteria. These results show that soil microbial characteristics present partly new information and indicate the need to amend the procedures of biotope assessment. Soil PLFA profiling could serve as suitable methods for this purpose.

ACS Style

Josef Trögl; Jana Pavlorková; Pavla Packová; Josef Seják; Pavel Kuráň; Jan Popelka; Jan Pacina. Indication of Importance of Including Soil Microbial Characteristics into Biotope Valuation Method. Sustainability 2016, 8, 253 .

AMA Style

Josef Trögl, Jana Pavlorková, Pavla Packová, Josef Seják, Pavel Kuráň, Jan Popelka, Jan Pacina. Indication of Importance of Including Soil Microbial Characteristics into Biotope Valuation Method. Sustainability. 2016; 8 (3):253.

Chicago/Turabian Style

Josef Trögl; Jana Pavlorková; Pavla Packová; Josef Seják; Pavel Kuráň; Jan Popelka; Jan Pacina. 2016. "Indication of Importance of Including Soil Microbial Characteristics into Biotope Valuation Method." Sustainability 8, no. 3: 253.

Research article
Published: 08 January 2014 in The Scientific World Journal
Reads 0
Downloads 0

Possible enhancement of biodegradation of petroleum hydrocarbons in agricultural soil after tank truck accident (~5000 mg/kg dry soil initial concentration) by bioaugmentation of diesel degradingPseudomonas fluorescensstrain and addition of abiotic additives (humates, zeolite) was studied in a 9-month pot experiment. The biodegradation process was followed by means of analytical parameters (hydrocarbon index expressed as content of C10–C40aliphatic hydrocarbons, ratio pristane/C17, and total organic carbon content) and characterization of soil microbial community (content of phospholipid fatty acids (PLFA) as an indicator of living microbial biomass, respiration, and dehydrogenase activity). The concentration of petroleum hydrocarbons (C10–C40) was successfully reduced by~60% in all 15 experiment variants. The bioaugmentation resulted in faster hydrocarbon elimination. On the contrary, the addition of humates and zeolite caused only a negligible increase in the degradation rate. These factors, however, affected significantly the amount of PLFA. The humates caused significantly faster increase of the total PLFA suggesting improvement of the soil microenvironment. Zeolite caused significantly slower increase of the total PLFA; nevertheless it aided in homogenization of the soil. Comparison of microbial activities and total PLFA revealed that only a small fraction of autochthonous microbes took part in the biodegradation which confirms that bioaugmentation was the most important treatment.

ACS Style

Pavel Kuráň; Josef Trögl; Jana Nováková; Věra Pilařová; Petra Dáňová; Jana Pavlorková; Josef Kozler; František Novák; Jan Popelka. Biodegradation of Spilled Diesel Fuel in Agricultural Soil: Effect of Humates, Zeolite, and Bioaugmentation. The Scientific World Journal 2014, 2014, 1 -8.

AMA Style

Pavel Kuráň, Josef Trögl, Jana Nováková, Věra Pilařová, Petra Dáňová, Jana Pavlorková, Josef Kozler, František Novák, Jan Popelka. Biodegradation of Spilled Diesel Fuel in Agricultural Soil: Effect of Humates, Zeolite, and Bioaugmentation. The Scientific World Journal. 2014; 2014 ():1-8.

Chicago/Turabian Style

Pavel Kuráň; Josef Trögl; Jana Nováková; Věra Pilařová; Petra Dáňová; Jana Pavlorková; Josef Kozler; František Novák; Jan Popelka. 2014. "Biodegradation of Spilled Diesel Fuel in Agricultural Soil: Effect of Humates, Zeolite, and Bioaugmentation." The Scientific World Journal 2014, no. : 1-8.

Journal article
Published: 22 August 2012 in Transactions in GIS
Reads 0
Downloads 0
ACS Style

Jan Pacina; Kamil Novák; Jan Popelka. Georelief Transfiguration in Areas Affected by Open-cast Mining. Transactions in GIS 2012, 16, 663 -679.

AMA Style

Jan Pacina, Kamil Novák, Jan Popelka. Georelief Transfiguration in Areas Affected by Open-cast Mining. Transactions in GIS. 2012; 16 (5):663-679.

Chicago/Turabian Style

Jan Pacina; Kamil Novák; Jan Popelka. 2012. "Georelief Transfiguration in Areas Affected by Open-cast Mining." Transactions in GIS 16, no. 5: 663-679.

Journal article
Published: 12 August 2012 in Folia Microbiologica
Reads 0
Downloads 0

The content of phospholipid fatty acids (PLFA) was determined in samples of polyvinyl alcohol lenses (Lentikats Biocatalyst, LB) with encapsulated Paracoccus denitrificans withdrawn during long-term denitrification experiments. The total PLFA content correlated highly with specific denitrification activities of LB as well as biomass estimation based on image analyses of microscopic photos. The results confirmed the applicability of PLFA determination for estimation of the amount of living encapsulated microbial biomass during biotechnological applications.

ACS Style

Josef Trögl; Ivana Jirková; Petra Zemánková; Věra Pilařová; Petra Dáňová; Jana Pavlorková; Pavel Kuráň; Jan Popelka; Lucie Křiklavová. Estimation of the quantity of bacteria encapsulated in Lentikats Biocatalyst via phospholipid fatty acids content: a preliminary study. Folia Microbiologica 2012, 58, 135 -140.

AMA Style

Josef Trögl, Ivana Jirková, Petra Zemánková, Věra Pilařová, Petra Dáňová, Jana Pavlorková, Pavel Kuráň, Jan Popelka, Lucie Křiklavová. Estimation of the quantity of bacteria encapsulated in Lentikats Biocatalyst via phospholipid fatty acids content: a preliminary study. Folia Microbiologica. 2012; 58 (2):135-140.

Chicago/Turabian Style

Josef Trögl; Ivana Jirková; Petra Zemánková; Věra Pilařová; Petra Dáňová; Jana Pavlorková; Pavel Kuráň; Jan Popelka; Lucie Křiklavová. 2012. "Estimation of the quantity of bacteria encapsulated in Lentikats Biocatalyst via phospholipid fatty acids content: a preliminary study." Folia Microbiologica 58, no. 2: 135-140.

Journal article
Published: 01 April 2012 in Waste Management
Reads 0
Downloads 0

A pilot scale gasification unit with novel co-current, updraft arrangement in the first stage and counter-current downdraft in the second stage was developed and exploited for studying effects of two stage gasification in comparison with one stage gasification of biomass (wood pellets) on fuel gas composition and attainable gas purity. Significant producer gas parameters (gas composition, heating value, content of tar compounds, content of inorganic gas impurities) were compared for the two stage and the one stage method of the gasification arrangement with only the upward moving bed (co-current updraft). The main novel features of the gasifier conception include grate-less reactor, upward moving bed of biomass particles (e.g. pellets) by means of a screw elevator with changeable rotational speed and gradual expanding diameter of the cylindrical reactor in the part above the upper end of the screw. The gasifier concept and arrangement are considered convenient for thermal power range 100-350 kW(th). The second stage of the gasifier served mainly for tar compounds destruction/reforming by increased temperature (around 950°C) and for gasification reaction of the fuel gas with char. The second stage used additional combustion of the fuel gas by preheated secondary air for attaining higher temperature and faster gasification of the remaining char from the first stage. The measurements of gas composition and tar compound contents confirmed superiority of the two stage gasification system, drastic decrease of aromatic compounds with two and higher number of benzene rings by 1-2 orders. On the other hand the two stage gasification (with overall ER=0.71) led to substantial reduction of gas heating value (LHV=3.15 MJ/Nm(3)), elevation of gas volume and increase of nitrogen content in fuel gas. The increased temperature (>950°C) at the entrance to the char bed caused also substantial decrease of ammonia content in fuel gas. The char with higher content of ash leaving the second stage presented only few mass% of the inlet biomass stream.

ACS Style

Jindřich Šulc; Jiří Štojdl; Miroslav Richter; Jan Popelka; Karel Svoboda; Jiří Smetana; Jiří Vacek; Siarhei Skoblja; Petr Buryan. Biomass waste gasification – Can be the two stage process suitable for tar reduction and power generation? Waste Management 2012, 32, 692 -700.

AMA Style

Jindřich Šulc, Jiří Štojdl, Miroslav Richter, Jan Popelka, Karel Svoboda, Jiří Smetana, Jiří Vacek, Siarhei Skoblja, Petr Buryan. Biomass waste gasification – Can be the two stage process suitable for tar reduction and power generation? Waste Management. 2012; 32 (4):692-700.

Chicago/Turabian Style

Jindřich Šulc; Jiří Štojdl; Miroslav Richter; Jan Popelka; Karel Svoboda; Jiří Smetana; Jiří Vacek; Siarhei Skoblja; Petr Buryan. 2012. "Biomass waste gasification – Can be the two stage process suitable for tar reduction and power generation?" Waste Management 32, no. 4: 692-700.

Conference paper
Published: 20 June 2011 in 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING
Reads 0
Downloads 0
ACS Style

Jan Popelka. SOURCE APPORTIONMENT OF POLYCYCLIC AROMATIC HYDROCARBONS (PAH) IN HEAVILY POLLUTED PARTS OF NORTH-WEST BOHEMIA. 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING 2011, 1 .

AMA Style

Jan Popelka. SOURCE APPORTIONMENT OF POLYCYCLIC AROMATIC HYDROCARBONS (PAH) IN HEAVILY POLLUTED PARTS OF NORTH-WEST BOHEMIA. 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING. 2011; ():1.

Chicago/Turabian Style

Jan Popelka. 2011. "SOURCE APPORTIONMENT OF POLYCYCLIC AROMATIC HYDROCARBONS (PAH) IN HEAVILY POLLUTED PARTS OF NORTH-WEST BOHEMIA." 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING , no. : 1.