Search Results - "Kopáček, Jiří"

Cleaner air reveals growing influence of climate on dissolved organic carbon trends in northern headwaters by de Wit, Heleen A, Stoddard, John L, Monteith, Donald T, Sample, James E, Austnes, Kari, Couture, Suzanne, Fölster, Jens, Higgins, Scott N, Houle, Daniel, Hruška, Jakub, Krám, Pavel, Kopáček, Jiří, Paterson, Andrew M, Valinia, Salar, Van Dam, Herman, Vuorenmaa, Jussi, Evans, Chris D

“…Surface water browning, the result of increasing concentrations of dissolved organic matter (DOM), has been widespread in northern ecosystems in recent…”
Get full text

Soil warming during winter period enhanced soil N and P availability and leaching in alpine grasslands: A transplant study by Kastovská, Eva, Choma, Michal, Capek, Petr, Kana, Jirí, Tahovská, Karolina, Kopácek, Jirí

“…Alpine meadows are strongly affected by climate change. Increasing air temperature prolongs the growing season and together with changing precipitation…”
Get full text

Solar Radiation as the Likely Cause of Acid-Soluble Rare-Earth Elements in Sediments of Fresh Water Humic Lakes by Porcal, Petr, Amirbahman, Aria, Kopáček, Jiří, Norton, Stephen A

“…We studied photochemically induced precipitation of rare-earth elements (REEs) in water from a tributary to Plešné Lake and a tributary to Jiřická Pond,…”
Get full text

Factors Affecting the Leaching of Dissolved Organic Carbon after Tree Dieback in an Unmanaged European Mountain Forest by Kopáček, Jiří, Evans, Christopher D, Hejzlar, Josef, Kaňa, Jiří, Porcal, Petr, Šantrůčková, Hana

“…Forest disturbances affect ecosystem biogeochemistry, water quality, and carbon cycling. We analyzed water chemistry before, during, and after a dieback event…”
Get full text

Effects of Acidic Deposition on in-Lake Phosphorus Availability: A Lesson from Lakes Recovering from Acidification by Kopáček, Jiří, Hejzlar, Josef, Kaňa, Jiří, Norton, Stephen A, Stuchlík, Evžen

“…Lake water concentrations of phosphorus (P) recently increased in some mountain areas due to elevated atmospheric input of P rich dust. We show that increasing…”
Get full text

Excess of Organic Carbon in Mountain Spruce Forest Soils after Bark Beetle Outbreak Altered Microbial N Transformations and Mitigated N-Saturation by Kaňa, Jiří, Tahovská, Karolina, Kopáček, Jiří, Šantrůčková, Hana

“…Mountain forests in National park Bohemian Forest (Czech Republic) were affected by bark beetle attack and windthrows in 2004-2008, followed by an extensive…”
Get full text

Widespread diminishing anthropogenic effects on calcium in freshwaters by Weyhenmeyer, Gesa A., Hartmann, Jens, Hessen, Dag O., Kopáček, Jiří, Hejzlar, Josef, Jacquet, Stéphan, Hamilton, Stephen K., Verburg, Piet, Leach, Taylor H., Schmid, Martin, Flaim, Giovanna, Nõges, Tiina, Nõges, Peeter, Wentzky, Valerie C., Rogora, Michela, Rusak, James A., Kosten, Sarian, Paterson, Andrew M., Teubner, Katrin, Higgins, Scott N., Lawrence, Gregory, Kangur, Külli, Kokorite, Ilga, Cerasino, Leonardo, Funk, Clara, Harvey, Rebecca, Moatar, Florentina, de Wit, Heleen A., Zechmeister, Thomas

“…Calcium (Ca) is an essential element for almost all living organisms. Here, we examined global variation and controls of freshwater Ca concentrations, using…”
Get full text

Undeveloped till soils in scree areas are an overlooked important phosphorus source for waters in alpine catchments by Kaňa, Jiří, Kaštovská, Eva, Choma, Michal, Čapek, Petr, Tahovská, Karolina, Kopáček, Jiří

“…Scree deposits in alpine catchments contain undeveloped till soils that are “hidden” between and under stones. These scree areas have no vegetation except for…”
Get full text

Changes in microclimate and hydrology in an unmanaged mountain forest catchment after insect-induced tree dieback by Kopáček, Jiří, Bače, Radek, Hejzlar, Josef, Kaňa, Jiří, Kučera, Tomáš, Matějka, Karel, Porcal, Petr, Turek, Jan

“…Hydrological and microclimatic changes after insect-induced tree dieback were evaluated in an unmanaged central European mountain (Plešné, PL) forest and…”
Get full text

Environmental gradients and optimal fixation time revealed with DNA metabarcoding of benthic sample fixative by Vargovčík, Ondrej, Čiamporová-Zaťovičová, Zuzana, Beracko, Pavel, Kopáček, Jiří, Macko, Patrik, Tuhrinová, Kornélia, Čiampor, Fedor

“…Assessments of biodiversity and ecosystem status can benefit from DNA metabarcoding as a means to streamline sample processing and specimen identification…”
Get full text

Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research by Shibata, Hideaki, Branquinho, Cristina, McDowell, William H., Mitchell, Myron J., Monteith, Don T., Tang, Jianwu, Arvola, Lauri, Cruz, Cristina, Cusack, Daniela F., Halada, Lubos, Kopáček, Jiří, Máguas, Cristina, Sajidu, Samson, Schubert, Hendrik, Tokuchi, Naoko, Záhora, Jaroslav

“…Anthropogenically derived nitrogen (N) has a central role in global environmental changes, including climate change, biodiversity loss, air pollution,…”
Get full text

Relationships between a catchment-scale forest disturbance index, time delays, and chemical properties of surface water by Schmidt, Susanne I., Hejzlar, Josef, Kopáček, Jiří, Paule-Mercado, Ma. Cristina, Porcal, Petr, Vystavna, Yuliya

“…•A catchment-scale average infrared-based index indicates annual forest disturbances.•The index predicts chemical properties in discharging streams after…”
Get full text

Climate Change Increasing Calcium and Magnesium Leaching from Granitic Alpine Catchments by Kopáček, Jiří, Kaňa, Jiří, Bičárová, Svetlana, Fernandez, Ivan J, Hejzlar, Josef, Kahounová, Marie, Norton, Stephen A, Stuchlík, Evžen

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

Predicting sulphur and nitrogen deposition using a simple statistical method by Oulehle, Filip, Kopáček, Jiří, Chuman, Tomáš, Černohous, Vladimír, Hůnová, Iva, Hruška, Jakub, Krám, Pavel, Lachmanová, Zora, Navrátil, Tomáš, Štěpánek, Petr, Tesař, Miroslav, Evans, Christopher D.

“…Data from 32 long-term (1994–2012) monitoring sites were used to assess temporal development and spatial variability of sulphur (S) and inorganic nitrogen (N)…”
Get full text

Increased Saprotrophic Activity and Phosphate Leaching Following Forest Soil Decomposition without Root Access by Karolina Tahovská, Michal Choma, Petr Čapek, Eva Kaštovská, Jiří Kaňa, Jiří Kopáček

“…By incubating the soil without living roots in situ at two spruce forest sites, we simulated the effects of tree dieback and interrupted mycorrhizal…”
Get full text

Aquatic quillworts, Isoëtes echinospora and I. lacustris under acidic stress—A review from a temperate refuge by Čtvrtlíková, Martina, Kopáček, Jiří, Nedoma, Jiří, Znachor, Petr, Hekera, Petr, Vrba, Jaroslav

“…Quillworts (Isoëtes) represent highly specialized flora of softwater lakes, that is, freshwater ecosystems potentially sensitive to acidification. In this…”
Get full text

Speciation of Al, Fe, and P in recent sediment from three lakes in Maine, USA by Norton, Stephen A., Coolidge, Kyle, Amirbahman, Aria, Bouchard, Roy, Kopáček, Jiří, Reinhardt, Raquel

“…Sequential extraction of sediments [Psenner R, Pucsko R. Die Fraktionierung organischer und anorganischer Phosphorverbindungen von Sedimenten. Arch…”
Get full text

Macroinvertebrate assemblages in acidified mountain lake inflows differs from lake outflows: the influence of lakes by Dočkalová, Kateřina, Senoo, Takaaki, Vondrák, Daniel, Chvojka, Pavel, Kopáček, Jiří, Kamasová, Lenka, Beneš, Filip, Špaček, Jan, Tátosová, Jolana, Bitušík, Peter, Fjellheim, Arne, Stuchlík, Evžen

“…This synoptic study of inflows and outflows of eight atmospherically acidified glacial lakes in the Bohemian Forest, the Czech Republic and Germany,…”
Get full text

Photochemical Source of Metals for Sediments by Kopáček, Jiří, Marešová, Marie, Norton, Stephen A, Porcal, Petr, Veselý, Josef

“…A mass budget study of major in-lake Al fluxes, palaeolimnological data on a >10 000 year old sediment record, and in situ photochemical experiments performed…”
Get full text

Photochemical Production of Ionic and Particulate Aluminum and Iron in Lakes by Kopáček, Jiří, Klementová, Šárka, Norton, Stephen A

“…Photochemical liberation of allochthonous organically bound aluminum (Al) and iron (Fe) and in-lake hydroxide precipitation are important sources of these…”
Get full text