Search Results - "Kana, Jirí"

Diverse effects of accelerating climate change on chemical recovery of alpine lakes from acidic deposition in soil-rich versus scree-rich catchments by Kopáček, Jiří, Kaňa, Jiří, Porcal, Petr, Stuchlík, Evžen

“…The current recovery of mountain lakes from atmospheric acidification is increasingly affected (both accelerated and/or delayed) by climate change. We…”
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The concentration of organic nitrogen in mountain lakes is increasing as a result of reduced acid deposition and climate change by Kopáček, Jiří, Brahney, Janice, Kaňa, Jiří, Kopáček, Marek, Porcal, Petr, Stuchlík, Evžen

“…The ionic and nutrient composition of mountain lakes recovering from atmospheric acidification is increasingly influenced by climate change (increasing air…”
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The chemical composition of forest soils and their degree of acidity in Central Europe by Šantrůčková, Hana, Cienciala, Emil, Kaňa, Jiří, Kopáček, Jiří

“…We conducted an extensive screening of forest soils in the whole area of the Czech Republic to determine their degree of acidification and potential…”
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Dynamics and variability of microclimate in an unmanaged mountain forest after a bark beetle outbreak by Kopáček, Jiří, Bače, Radek, Grill, Stanislav, Hejzlar, Josef, Kaňa, Jiří, Porcal, Petr, Turek, Jan

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Effects of Bark Beetle Disturbance on Soil Nutrient Retention and Lake Chemistry in Glacial Catchment by Oulehle, Filip, Wright, Richard F., Svoboda, Miroslav, Bace, Radek, Matějka, Karel, Kaňa, Jiří, Hruška, Jakub, Couture, Raoul-Marie, Kopáček, Jiří

“…Forest ecosystems worldwide are subjected to human-induced stressors, including eutrophication and acidification, and to natural disturbances (for example,…”
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Microbial N immobilization is of great importance in acidified mountain spruce forest soils by Tahovská, Karolina, Kaňa, Jiří, Bárta, Jiří, Oulehle, Filip, Richter, Andreas, Šantrůčková, Hana

“…The prevailing N saturation paradigm still considers microbial N immobilization as a less important process of ecosystem N retention. On the contrary, we…”
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Coupling the resource stoichiometry and microbial biomass turnover to predict nutrient mineralization and immobilization in soil by Čapek, Petr, Choma, Michal, Tahovská, Karolina, Kaňa, Jiří, Kopáček, Jiří, Šantrůčková, Hana

“…•Stoichiometry-based relationship fails to predict nutrient mineralization in soil.•Soil microbes use decaying microbial biomass as a nitrogen source.•The…”
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Effects of tree dieback on lake water acidity in the unmanaged catchment of Plešné Lake, Czech Republic by Kopáček, Jiří, Kaňa, Jiří, Porcal, Petr, Vrba, Jaroslav, Norton, Stephen A.

“…Terrestrial exports of protons (H⁺), nitrate (NO₃⁻), dissolved organic carbon including organic acid anions (A⁻), phosphorus (P), base cations, and ionic…”
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Surviving trees are key elements in the fate of ectomycorrhizal community after severe bark-beetle forest disturbance by Choma, Michal, Bače, Radek, Čapek, Petr, Kaňa, Jiří, Kaštovská, Eva, Tahovská, Karolina, Kopáček, Jiří

“…Abstract Bark beetle disturbances are a critical event in the life cycle of Norway spruce forests. However, our knowledge of their effects on ectomycorrhizal…”
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Tree dieback and related changes in nitrogen dynamics modify the concentrations and proportions of cations on soil sorption complex by Kaňa, Jiří, Kopáček, Jiří, Tahovská, Karolina, Šantrůčková, Hana

“…•Tree dieback in an unmanaged forest significantly affected soil and water chemistry.•Soil base cations doubled, and replaced 30% of exchangeable acidity…”
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Long-term changes in soil composition in unmanaged central European mountain spruce forests after decreased acidic deposition and a bark beetle outbreak by Kopáček, Jiří, Čapek, Petr, Choma, Michal, Cudlín, Pavel, Kaňa, Jiří, Kopáček, Marek, Porcal, Petr, Šantrůčková, Hana, Tahovská, Karolina, Turek, Jan

“…[Display omitted] •A bark beetle attack increased litterfall in unmanaged mountain spruce forests.•Concentrations and pools of base cations, P, and N increased…”
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An important role of decomposing wood for soil environment with a reference to communities of springtails (Collembola) by Čuchta, Peter, Kaňa, Jiří, Pouska, Václav

“…Present study focused on how the presence of decaying wood affects soil environment including its biota. The study was carried out in the montane spruce…”
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Decreasing litterfall mercury deposition in central European coniferous forests and effects of bark beetle infestation by Navrátil, Tomáš, Nováková, Tereza, Roll, Michal, Shanley, James B., Kopáček, Jiří, Rohovec, Jan, Kaňa, Jiří, Cudlín, Pavel

“…We evaluated a 14-year trend (2003–2017) in mercury (Hg) concentrations and fluxes in six litterfall categories (needles, bark, twigs, cones, lichen, and a…”
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Response of soil chemistry to forest dieback after bark beetle infestation by Kaa, Jiri, Tahovska, Karolina, Kopacek, Jiri

“…We evaluated changes in the chemistry of the uppermost soil horizons in an unmanaged spruce forest (National Park Bohemian Forest, Czech Republic) for 3 years…”
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Responses of soil microarthropod taxon (Hexapoda: Protura) to natural disturbances and management practices in forest-dominated subalpine lake catchment areas by Sterzyńska, Maria, Shrubovych, Julia, Tajovský, Karel, Čuchta, Peter, Starý, Josef, Kaňa, Jiří, Smykla, Jerzy

“…Disturbances are intrinsic drivers of structure and function in ecosystems, hence predicting their effects in forest ecosystems is essential for forest…”
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Stability of mercury concentration measurements in archived soil and peat samples by Navrátil, Tomáš, Burns, Douglas A., Nováková, Tereza, Kaňa, Jiří, Rohovec, Jan, Roll, Michal, Ettler, Vojtěch

“…Archived soil samples can provide important information on the history of environmental contamination and by comparison with recently collected samples,…”
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Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations by Kopáček, Jiří, Kaňa, Jiří, Bičárová, Svetlana, Brahney, Janice, Navrátil, Tomáš, Norton, Stephen A., Porcal, Petr, Stuchlík, Evžen

“…We evaluated changes in the concentration of cations, anions, nutrients (dissolved organic carbon, DOC; phosphorus, P; and nitrogen forms including nitrate, NO…”
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Phosphate Sorption Characteristics of European Alpine Soils by Kaňa, Jiří, Kopacek, Jiri, Camarero, Lluis, Garcia-Pausas, Jordi

“…We evaluated the chemical properties controlling phosphate (PO4–P) sorption characteristics of alpine soils at elevations of 1725 to 2900 m above sea level in…”
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The sensitivity of water chemistry to climate in a forested, nitrogen-saturated catchment recovering from acidification by Kopáček, Jiří, Hejzlar, Josef, Kaňa, Jiří, Porcal, Petr, Turek, Jan

“…•We measured fluxes of ions in N-saturated mountain forest catchment from 1998 to 2014.•Water chemistry rapidly recovers from acidification due to 90% reduced…”
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Climate Change Increasing Calcium and Magnesium Leaching from Granitic Alpine by Kopácek, Jirí, Kana, Jirí, Bicárová, Svetlana, Fernandez, Ivan J, Hejzlar, Josef, Kahounová, Marie, Norton, Stephen A, Stuchlík, Evzen

“…Climate change can reverse trends of decreasing calcium and magnesium [Ca + Mg] leaching to surface waters in granitic alpine regions recovering from…”
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