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197 results on '"Dohnal Michal"'

1. Ponded infiltration in a grid of permanent single-ring infiltrometers: Spatial versus temporal variability

Author

Votrubova Jana, Dohnal Michal, Vogel Tomas, Tesar Miroslav, Jelinkova Vladimira, and Cislerova Milena

Subjects
soil infiltrability, infiltration instability, infiltration modes, burrowing animals, preferential flow, Hydraulic engineering, TC1-978
Abstract

Temporal variability of the soil hydraulic properties is still an open issue. The present study deals with results of ponded infiltration experiments performed annually in a grid of permanent measurement points (18 spatial and 14 temporal replicates). Single ring infiltrometers were installed in 2003 at a meadow site in the Bohemian Forest highlands, the Czech Republic. The soil at the plot is coarse sandy loam classified as oligotrophic Eutric Cambisol. Soil water flow below infiltration rings has distinctly preferential character.

Published
2017
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2. Episodic runoff generation at Central European headwater catchments studied using water isotope concentration signals

Author

Votrubova Jana, Dohnal Michal, Vogel Tomas, Sanda Martin, and Tesar Miroslav

Subjects
18o isotope, headwater catchment runoff, subsurface runoff, tracer, rainfall-runoff episodes, Hydraulic engineering, TC1-978
Abstract

Hydrological monitoring in small headwater catchments provides the basis for examining complex interrelating hydraulic processes that govern the runoff generation. Contributions of different subsurface runoff mechanisms to the catchment discharge formation at two small forested headwater catchments are studied with the help of their natural isotopic signatures. The Uhlirska catchment (Jizera Mts., Czech Republic) is situated in headwater area of the Lusatian Neisse River. The catchment includes wetlands at the valley bottom developed over deluviofluvial granitic sediments surrounded by gentle hillslopes with shallow soils underlain by weathered granite. The Liz catchment (Bohemian Forest, Czech Republic) is situated in headwater area of the Otava River. It belongs to hillslope-type catchments with narrow riparian zones. The soil at Liz is developed on biotite paragneiss bedrock. The basic comparison of hydrological time series reveals that the event-related stream discharge variations at the Uhlirska catchment are bigger and significantly more frequent than at Liz. The analysis of isotope concentration data revealed different behavior of the two catchments during the major rainfall-runoff events. At Uhlirska, the percentage of the direct runoff formed by the event water reaches its maximum on the falling limb of the hydrograph. At Liz, the event water related fraction of the direct outflow is maximal on the rising limb of the hydrograph and then lowers. The hydraulic functioning of the Uhlirska catchment is determined by communication between hillslope and riparian zone compartments.

Published
2017
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3. Interpretation of ponded infiltration data using numerical experiments

Author

Dohnal Michal, Vogel Tomas, Dusek Jaromir, Votrubova Jana, and Tesar Miroslav

Subjects
ponded infiltration experiment, two-parameter infiltration equation, three-dimensional axisymmetric dualcontinuum model, preferential flow, Hydraulic engineering, TC1-978
Abstract

Ponded infiltration experiment is a simple test used for in-situ determination of soil hydraulic properties, particularly saturated hydraulic conductivity and sorptivity. It is known that infiltration process in natural soils is strongly affected by presence of macropores, soil layering, initial and experimental conditions etc. As a result, infiltration record encompasses a complex of mutually compensating effects that are difficult to separate from each other. Determination of sorptivity and saturated hydraulic conductivity from such infiltration data is complicated. In the present study we use numerical simulation to examine the impact of selected experimental conditions and soil profile properties on the ponded infiltration experiment results, specifically in terms of the hydraulic conductivity and sorptivity evaluation. The effect of following factors was considered: depth of ponding, ring insertion depth, initial soil water content, presence of preferential pathways, hydraulic conductivity anisotropy, soil layering, surface layer retention capacity and hydraulic conductivity, and presence of soil pipes or stones under the infiltration ring. Results were compared with a large database of infiltration curves measured at the experimental site Liz (Bohemian Forest, Czech Republic). Reasonably good agreement between simulated and observed infiltration curves was achieved by combining several of factors tested. Moreover, the ring insertion effect was recognized as one of the major causes of uncertainty in the determination of soil hydraulic parameters.

Published
2016
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4. New automatic minidisk infiltrometer: design and testing

Author

Klípa Vladimír, Sněhota Michal, and Dohnal Michal

Subjects
tension infiltrometer, hydraulic conductivity, sorptivity, automated measurement, infiltration experiment, zhang’s method, Hydraulic engineering, TC1-978
Abstract

Soil hydraulic conductivity is a key parameter to predict water flow through the soil profile. We have developed an automatic minidisk infiltrometer (AMI) to enable easy measurement of unsaturated hydraulic conductivity using the tension infiltrometer method in the field. AMI senses the cumulative infiltration by recording change in buoyancy force acting on a vertical solid bar fixed in the reservoir tube of the infiltrometer. Performance of the instrument was tested in the laboratory and in two contrasting catchments at three sites with different land use. Hydraulic conductivities determined using AMI were compared with earlier manually taken readings. The results of laboratory testing demonstrated high accuracy and robustness of the AMI measurement. Field testing of AMI proved the suitability of the instrument for use in the determination of sorptivity and near saturated hydraulic conductivity

Published
2015
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5. Rainfall interception and spatial variability of throughfall in spruce stand

Author

Dohnal Michal, Černý Tomáš, Votrubová Jana, and Tesař Miroslav

Subjects
interception loss, interception capacity, free throughfall, evaporation, hydrological balance of vegetation cover., Hydraulic engineering, TC1-978
Abstract

The interception was recognized as an important part of the catchment water balance in temperate climate. The mountainous forest ecosystem at experimental headwater catchment Liz has been subject of long-term monitoring. Unique dataset in terms of time resolution serves to determine canopy storage capacity and free throughfall. Spatial variability of throughfall was studied using one weighing and five tipping bucket rain gauges. The basic characteristics of forest affecting interception process were determined for the Norway spruce stand at the experimental area - the leaf area index was 5.66 - 6.00 m2 m-2, the basal area was 55.7 m2 ha-1, and the crown closure above individual rain gauges was between 19 and 95%. The total interception loss in both growing seasons analyzed was 34.5%. The mean value of the interception capacity determined was about 2 mm. Throughfall exhibited high variability from place to place and it was strongly affected by character of rainfall. On the other hand, spatial pattern of throughfall in average showed low variability.

Published
2014
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6. Uncertainty Analysis of a Dual-Continuum Model Used to Simulate Subsurface Hillslope Runoff Involving Oxygen-18 as Natural Tracer

Author

Dohnal Michal, Vogel Tomáš, Šanda Martin, and Jelínková Vladimíra

Subjects
hillslope discharge, preferential flow, dual-permeability model, sensitivity analysis, glue, 18o content, odtok ze svahu, preferenční proudění, model duální permeability, analýza citlivosti, koncentrace 18o, Hydraulic engineering, TC1-978
Published
2012
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7. Hillslope Runoff Generation - Comparing Different Modeling Approaches

Author

Pavelková Helena, Dohnal Michal, and Vogel Tomáš

Subjects
rainfall-runoff modeling, hillslope discharge, soil water storage, transmisivity, topographic index, richards' equation, preferential flow, srážko-odtokové modelování, odtok ze svahu, zásoba vody v půdě, transmisivita, topografický index, richardsova rovnice, preferenční proudění, Hydraulic engineering, TC1-978
Published
2012
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9. A daily time-step hydrological-energy-biomass model to estimate green roof performances across Europe to support planning and policies

Author

Quaranta, Emanuele, Arkar, Ciril, Branquinho, Cristina, Cristiano, Elena, de Carvalho, Ricardo Cruz, Dohnal, Michal, Gnecco, Ilaria, Gößner, Dominik, Jelinkova, Vladimira, Maucieri, Carmelo, Mohri, Milena, Nektarios, Panayiotis A., Ntoulas, Nikolaos, Palermo, Stefania Anna, Palla, Anna, Piro, Patrizia, Serrano, Helena Cristina, Soulis, Konstantinos X., Turco, Michele, Van Renterghem, Timothy, Varela, Zulema, Viola, Francesco, Zanin, Giampaolo, and Pistocchi, Alberto

Published
2024
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10. Global transpiration data from sap flow measurements: the SAPFLUXNET database

Author

Poyatos, Rafael, Granda, Víctor, Flo, Víctor, Adams, Mark A, Adorján, Balázs, Aguadé, David, Aidar, Marcos PM, Allen, Scott, Alvarado-Barrientos, M Susana, Anderson-Teixeira, Kristina J, Aparecido, Luiza Maria, Arain, M Altaf, Aranda, Ismael, Asbjornsen, Heidi, Baxter, Robert, Beamesderfer, Eric, Berry, Z Carter, Berveiller, Daniel, Blakely, Bethany, Boggs, Johnny, Bohrer, Gil, Bolstad, Paul V, Bonal, Damien, Bracho, Rosvel, Brito, Patricia, Brodeur, Jason, Casanoves, Fernando, Chave, Jérôme, Chen, Hui, Cisneros, Cesar, Clark, Kenneth, Cremonese, Edoardo, Dang, Hongzhong, David, Jorge S, David, Teresa S, Delpierre, Nicolas, Desai, Ankur R, C., Frederic, Dohnal, Michal, Domec, Jean-Christophe, Dzikiti, Sebinasi, Edgar, Colin, Eichstaedt, Rebekka, El-Madany, Tarek S, Elbers, Jan, Eller, Cleiton B, Euskirchen, Eugénie S, Ewers, Brent, Fonti, Patrick, Forner, Alicia, Forrester, David I, Freitas, Helber C, Galvagno, Marta, Garcia-Tejera, Omar, Ghimire, Chandra Prasad, Gimeno, Teresa E, Grace, John, Granier, André, Griebel, Anne, Guangyu, Yan, Gush, Mark B, Hanson, Paul J, Hasselquist, Niles J, Heinrich, Ingo, Hernandez-Santana, Virginia, Herrmann, Valentine, Hölttä, Teemu, Holwerda, Friso, Irvine, James, Ayutthaya, Supat Isarangkool Na, Jarvis, Paul G, Jochheim, Hubert, Joly, Carlos A, Kaplick, Julia, Kim, Hyun Seok, Klemedtsson, Leif, Kropp, Heather, Lagergren, Fredrik, Lane, Patrick, Lang, Petra, Lapenas, Andrei, Lechuga, Víctor, Lee, Minsu, Leuschner, Christoph, Limousin, Jean-Marc, Linares, Juan Carlos, Linderson, Maj-Lena, Lindroth, Anders, Llorens, Pilar, López-Bernal, Álvaro, Loranty, Michael M, Lüttschwager, Dietmar, Macinnis-Ng, Cate, Maréchaux, Isabelle, Martin, Timothy A, Matheny, Ashley, McDowell, Nate, McMahon, Sean, Meir, Patrick, and Mészáros, Ilona

Subjects
Life on Land, Atmospheric Sciences, Geochemistry, Physical Geography and Environmental Geoscience
Abstract

Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy, and carbon budgets at the land-atmosphere interface. However, despite being the main land evaporative flux at the global scale, transpiration and its response to environmental drivers are currently not well constrained by observations. Here we introduce the first global compilation of whole-plant transpiration data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/, last access: 8 June 2021). We harmonized and quality-controlled individual datasets supplied by contributors worldwide in a semi-automatic data workflow implemented in the R programming language. Datasets include sub-daily time series of sap flow and hydrometeorological drivers for one or more growing seasons, as well as metadata on the stand characteristics, plant attributes, and technical details of the measurements. SAPFLUXNET contains 202 globally distributed datasets with sap flow time series for 2714 plants, mostly trees, of 174 species. SAPFLUXNET has a broad bioclimatic coverage, with woodland/shrubland and temperate forest biomes especially well represented (80% of the datasets). The measurements cover a wide variety of stand structural characteristics and plant sizes. The datasets encompass the period between 1995 and 2018, with 50% of the datasets being at least 3 years long. Accompanying radiation and vapour pressure deficit data are available for most of the datasets, while on-site soil water content is available for 56% of the datasets. Many datasets contain data for species that make up 90% or more of the total stand basal area, allowing the estimation of stand transpiration in diverse ecological settings. SAPFLUXNET adds to existing plant trait datasets, ecosystem flux networks, and remote sensing products to help increase our understanding of plant water use, plant responses to drought, and ecohydrological processes. SAPFLUXNET version 0.1.5 is freely available from the Zenodo repository (10.5281/zenodo.3971689; Poyatos et al., 2020a). The "sapfluxnetr"R package-designed to access, visualize, and process SAPFLUXNET data-is available from CRAN.

Published
2021

30. Global transpiration data from sap flow measurements: the SAPFLUXNET database

Author

Ministerio de Ciencia e Innovación (España), Llorens, Pilar [0000-0003-4591-5303], Poyatos, Rafael, Granda, Víctor, Flo, Víctor, Adams, Mark A., Adorján, Balázs, Aguadé, David, Aidar, Marcos P. M., Alle, Scott, Alvarado-Barrientos, M. Susana, Anderson-Teixeira, Kristina J., Aparecido, Luiza Maria, Mitchell, Patrick, Mölder, Meelis, Montagnani, Leonardo, Moore, Georgianne W., Nakada, Ryogo, Niu, Furong, Nolan, Rachael H., Norby, Richard, Novick, Kimberly, Oberhuber, Walter, Arain, M. Altaf, Obojes, Nikolaus, Oishi, A. Christopher, Oliveira, Rafael S., Oren, Ram, Ourcival, Jean-Marc, Paljakka, Teemu, Pérez-Priego, Óscar, Peri, Pablo L., Peters, Richard L., Pfautsch, Sebastian, Aranda García, Ismael, Pockman, William T., Preisler, Yakir, Rascher, Katherine, Robinson, George, Rocha, Humberto, Rocheteau, Alain, Röll, Alexander, Rosado, Bruno H. P., Rowland, Lucy, Rubtsov, Alexey V., Asbjornsen, Heidi, Sabaté, Santiago, Salmon, Yann, Roberto L. Salomón, Salomón, Roberto L., Sánchez-Costa, Elisenda, Schäfer, Karina V. R., Schuldt, Bernhard, Shashkin, Alexandr, Stahl, Clément, Stojanović, Marko, Baxter, Robert, Suárez, Juan Carlos, Sun, Ge, Szatniewska, Justyna, Tatarinov, Fyodor, Tesař, Miroslav, Thomas, Frank M., Tor-ngern, Pantana, Urban, Josef, Valladares Ros, Fernando, Van der Tol, Christiaan, Beamesderfer, Eric, Van Meerveld, Ilja, Varlagin, Andrej, Voigt, Hom, Warren, Jeffrey, Werner, Christiane, Werner, Willy, Wieser, Gerhard, Wingate, Lisa, Wullschleger, Stan, Zweifel, Roman, Berry, Z. Carter, Yi, Koon, Steppe, Kathy, Mencuccini, Maurizio, Martínez-Vilalta, Jordi, Berveiller, Daniel, Blakely, Bethany, Boggs, Johnny, Bohrer, Gil, Bolstad, Paul V., Bonal, Damien, Brito, Patricia, Brodeur, Jason, Casanoves, Fernando, Chave, Jérôme, Chen, Hui, Cisneros, Cesar, Clark, Kenneth, Cremonese, Edoardo, Dang, Hongzhong, David, Jorge S., David, Teresa S., Delpierre, Nicolas, Desai, Ankur R., Do, Frederic C., Dohnal, Michal, Domec, Jean-Christophe, Dzikiti, Sebinasi, Edgar, Colin, Eichstaedt, Rebekka, El-Madany, Tarek S., Eller, Cleiton B., Elbers, Jan, Euskirchen, Eugénie S., Ewers, Brent, Fonti, Patrick, Forner, Alicia, Forrester, David I., Freitas, Helber C., Galvagno, Marta, García-Tejera, Omar, Ghimire, Chandra Prasad, Gimeno, Teresa E., Grace, John, Granier, André, Griebel, Anne, Guangyu, Yan, Gush, Mark B., Hanson, Paul J., Hasselquist, Niles J., Heinrich, Ingo, Hernández-Santana, Virginia, Herrmann, Valentine, Hölttä, Teemu, Holwerda, Friso, Irvine, James, Na Ayutthaya, Supat Isarangkool, Jarvis, Paul G., Jochheim, Hubert, Kaplick, Julia, Joly, Carlos A., Kim, Hyun Seok, Klemedtsson, Leif, Kropp, Heather, Lagergren, Fredrik, Lane, Patrick, Lang, Petra, Lapenas, Andrei, Lechuga, Víctor, Lee, Minsu, Leuschner, Christoph, Limousin, Jean-Marc, Linares, Juan Carlos, Linderson, Maj-Lena, Lindroth, Anders, Llorens, Pilar, López-Bernal, Álvaro, Loranty, Michael M., Lüttschwager, Dietmar, Macinnis-Ng, Cate, Maréchaux, Isabelle, Martin, Timothy A., Matheny, Ashley, McDowell, Nate, McMahon, Sean, Meir, Patrick, Mészáros, Ilona, Migliavacca, Mirco, Ministerio de Ciencia e Innovación (España), Llorens, Pilar [0000-0003-4591-5303], Poyatos, Rafael, Granda, Víctor, Flo, Víctor, Adams, Mark A., Adorján, Balázs, Aguadé, David, Aidar, Marcos P. M., Alle, Scott, Alvarado-Barrientos, M. Susana, Anderson-Teixeira, Kristina J., Aparecido, Luiza Maria, Mitchell, Patrick, Mölder, Meelis, Montagnani, Leonardo, Moore, Georgianne W., Nakada, Ryogo, Niu, Furong, Nolan, Rachael H., Norby, Richard, Novick, Kimberly, Oberhuber, Walter, Arain, M. Altaf, Obojes, Nikolaus, Oishi, A. Christopher, Oliveira, Rafael S., Oren, Ram, Ourcival, Jean-Marc, Paljakka, Teemu, Pérez-Priego, Óscar, Peri, Pablo L., Peters, Richard L., Pfautsch, Sebastian, Aranda García, Ismael, Pockman, William T., Preisler, Yakir, Rascher, Katherine, Robinson, George, Rocha, Humberto, Rocheteau, Alain, Röll, Alexander, Rosado, Bruno H. P., Rowland, Lucy, Rubtsov, Alexey V., Asbjornsen, Heidi, Sabaté, Santiago, Salmon, Yann, Roberto L. Salomón, Salomón, Roberto L., Sánchez-Costa, Elisenda, Schäfer, Karina V. R., Schuldt, Bernhard, Shashkin, Alexandr, Stahl, Clément, Stojanović, Marko, Baxter, Robert, Suárez, Juan Carlos, Sun, Ge, Szatniewska, Justyna, Tatarinov, Fyodor, Tesař, Miroslav, Thomas, Frank M., Tor-ngern, Pantana, Urban, Josef, Valladares Ros, Fernando, Van der Tol, Christiaan, Beamesderfer, Eric, Van Meerveld, Ilja, Varlagin, Andrej, Voigt, Hom, Warren, Jeffrey, Werner, Christiane, Werner, Willy, Wieser, Gerhard, Wingate, Lisa, Wullschleger, Stan, Zweifel, Roman, Berry, Z. Carter, Yi, Koon, Steppe, Kathy, Mencuccini, Maurizio, Martínez-Vilalta, Jordi, Berveiller, Daniel, Blakely, Bethany, Boggs, Johnny, Bohrer, Gil, Bolstad, Paul V., Bonal, Damien, Brito, Patricia, Brodeur, Jason, Casanoves, Fernando, Chave, Jérôme, Chen, Hui, Cisneros, Cesar, Clark, Kenneth, Cremonese, Edoardo, Dang, Hongzhong, David, Jorge S., David, Teresa S., Delpierre, Nicolas, Desai, Ankur R., Do, Frederic C., Dohnal, Michal, Domec, Jean-Christophe, Dzikiti, Sebinasi, Edgar, Colin, Eichstaedt, Rebekka, El-Madany, Tarek S., Eller, Cleiton B., Elbers, Jan, Euskirchen, Eugénie S., Ewers, Brent, Fonti, Patrick, Forner, Alicia, Forrester, David I., Freitas, Helber C., Galvagno, Marta, García-Tejera, Omar, Ghimire, Chandra Prasad, Gimeno, Teresa E., Grace, John, Granier, André, Griebel, Anne, Guangyu, Yan, Gush, Mark B., Hanson, Paul J., Hasselquist, Niles J., Heinrich, Ingo, Hernández-Santana, Virginia, Herrmann, Valentine, Hölttä, Teemu, Holwerda, Friso, Irvine, James, Na Ayutthaya, Supat Isarangkool, Jarvis, Paul G., Jochheim, Hubert, Kaplick, Julia, Joly, Carlos A., Kim, Hyun Seok, Klemedtsson, Leif, Kropp, Heather, Lagergren, Fredrik, Lane, Patrick, Lang, Petra, Lapenas, Andrei, Lechuga, Víctor, Lee, Minsu, Leuschner, Christoph, Limousin, Jean-Marc, Linares, Juan Carlos, Linderson, Maj-Lena, Lindroth, Anders, Llorens, Pilar, López-Bernal, Álvaro, Loranty, Michael M., Lüttschwager, Dietmar, Macinnis-Ng, Cate, Maréchaux, Isabelle, Martin, Timothy A., Matheny, Ashley, McDowell, Nate, McMahon, Sean, Meir, Patrick, Mészáros, Ilona, and Migliavacca, Mirco

Abstract

Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy, and carbon budgets at the land–atmosphere interface. However, despite being the main land evaporative flux at the global scale, transpiration and its response to environmental drivers are currently not well constrained by observations. Here we introduce the first global compilation of whole-plant transpiration data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/, last access: 8 June 2021). We harmonized and quality-controlled individual datasets supplied by contributors worldwide in a semi-automatic data workflow implemented in the R programming language. Datasets include sub-daily time series of sap flow and hydrometeorological drivers for one or more growing seasons, as well as metadata on the stand characteristics, plant attributes, and technical details of the measurements. SAPFLUXNET contains 202 globally distributed datasets with sap flow time series for 2714 plants, mostly trees, of 174 species. SAPFLUXNET has a broad bioclimatic coverage, with woodland/shrubland and temperate forest biomes especially well represented (80 % of the datasets). The measurements cover a wide variety of stand structural characteristics and plant sizes. The datasets encompass the period between 1995 and 2018, with 50 % of the datasets being at least 3 years long. Accompanying radiation and vapour pressure deficit data are available for most of the datasets, while on-site soil water content is available for 56 % of the datasets. Many datasets contain data for species that make up 90 % or more of the total stand basal area, allowing the estimation of stand transpiration in diverse ecological settings. SAPFLUXNET adds to existing plant trait datasets, ecosystem flux networks, and remote sensing products to help increase our understanding of plant water use, plant responses to drought, and ecohydrological processes. SAPFLUXNET version 0.1.5 is free

Published
2021

31. Improving hydraulic conductivity estimates from minidisk infiltrometer measurements for soils with wide pore-size distributions

Author

Dohnal, Michal, Dusek, Jaromir, and Vogel, Tomas

Subjects
Hydrogeology -- Research, Soil moisture -- Research, Soil permeability -- Research, Earth sciences
Abstract

Disk infiltrometers are established as standard devices for measuring soil surface hydraulic properties. This study explored the validity of a semiempirical approach that is used to obtain estimates of the near-saturated hydraulic condictivity from disk infiltrometer data. The approach was compared with two other estimation expressions. The analysis was based on three-dimensional numerical modeling of the infiltration process, i.e., on synthetic data. The results of the validation procedure showed that the original expression performed best among the compared methods, but still failed for fine-textured soils and the selected Cambisols. This is due to the overhwhelming importance of lateral soil water movement by capillarity, which is not adequately addressed by any of the models. The study showed that improved estimates, specifically for fine-textured soils and Cambisols and for small infiltrometer radii (minidisks), can be obtained by extending the original approach. This is achieved primarily (i) by using the modified van Genuchten parameterization of soil hydraulic functions instead of the original one, and (ii) by including a more representative set of soils in the objective function when optimizing the estimation formula. doi: 10.2136/sssaj2009.0099

Published
2010

36. Skončení pracovního poměru výpovědí ze strany zaměstnavatele

Author

Dohnal, Michal

Subjects
propuštění, skončení pracovního poměru, organizační změna, výpověď
Abstract

The bachelor thesis deals with the termination of employment by notice from the employer, both from the legal and economic-managerial point of view. The introductory part of the thesis introduces the legal and economic aspects related to the termination of the employment relationship. The thesis analyzes questions concerning termination of employment by notice from employer based on current labor law case law. The final part complements the researched issue with research from business practice. The results of analysis then serve as a basis for recommendations at the end of the thesis.

Published
2020

40. Root Function: In Situ Studies Through Sap Flow Research

Author

Nadezhdina, Nadezhda, primary, David, Teresa S., additional, David, Jorge S., additional, Nadezhdin, Valeriy, additional, Cermak, Jan, additional, Gebauer, Roman, additional, Ferreira, Maria Isabel, additional, Conceicao, Nuno, additional, Dohnal, Michal, additional, Tesař, Miroslav, additional, Gartner, Karl, additional, and Ceulemans, Reinhart, additional

Published
2011
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41. Global transpiration data from sap flow measurements: the SAPFLUXNET database

Author

Poyatos, Rafael, primary, Granda, Víctor, additional, Flo, Víctor, additional, Adams, Mark A., additional, Adorján, Balázs, additional, Aguadé, David, additional, Aidar, Marcos P.M., additional, Allen, Scott, additional, Alvarado-Barrientos, M. Susana, additional, Anderson-Teixeira, Kristina J., additional, Aparecido, Luiza Maria, additional, Arain, M. Altaf, additional, Aranda, Ismael, additional, Asbjornsen, Heidi, additional, Baxter, Robert, additional, Beamesderfer, Eric, additional, Berry, Z. Carter, additional, Berveiller, Daniel, additional, Blakely, Bethany, additional, Boggs, Johnny, additional, Bohrer, Gil, additional, Bolstad, Paul V., additional, Bonal, Damien, additional, Bracho, Rosvel, additional, Brito, Patricia, additional, Brodeur, Jason, additional, Casanoves, Fernando, additional, Chave, Jérôme, additional, Chen, Hui, additional, Cisneros, Cesar, additional, Clark, Kenneth, additional, Cremonese, Edoardo, additional, David, Jorge S., additional, David, Teresa S., additional, Delpierre, Nicolas, additional, Desai, Ankur R., additional, Do, Frederic C., additional, Dohnal, Michal, additional, Domec, Jean-Christophe, additional, Dzikiti, Sebinasi, additional, Edgar, Colin, additional, Eichstaedt, Rebekka, additional, El-Madany, Tarek S., additional, Elbers, Jan, additional, Eller, Cleiton B., additional, Euskirchen, Eugénie S., additional, Ewers, Brent, additional, Fonti, Patrick, additional, Forner, Alicia, additional, Forrester, David I., additional, Freitas, Helber C., additional, Galvagno, Marta, additional, Garcia-Tejera, Omar, additional, Ghimire, Chandra Prasad, additional, Gimeno, Teresa E., additional, Grace, John, additional, Granier, André, additional, Griebel, Anne, additional, Guangyu, Yan, additional, Gush, Mark B., additional, Hanson, Paul, additional, Hasselquist, Niles J., additional, Heinrich, Ingo, additional, Hernandez-Santana, Virginia, additional, Herrmann, Valentine, additional, Hölttä, Teemu, additional, Holwerda, Friso, additional, Hongzhong, Dang, additional, Irvine, James, additional, Isarangkool Na Ayutthaya, Supat, additional, Jarvis, Paul G., additional, Jochheim, Hubert, additional, Joly, Carlos A., additional, Kaplick, Julia, additional, Kim, Hyun Seok, additional, Klemedtsson, Leif, additional, Kropp, Heather, additional, Lagergren, Fredrik, additional, Lane, Patrick, additional, Lang, Petra, additional, Lapenas, Andrei, additional, Lechuga, Víctor, additional, Lee, Minsu, additional, Leuschner, Christoph, additional, Limousin, Jean-Marc, additional, Linares, Juan Carlos, additional, Linderson, Maj-Lena, additional, Lindroth, Andres, additional, Llorens, Pilar, additional, López-Bernal, Álvaro, additional, Loranty, Michael M., additional, Lüttschwager, Dietmar, additional, Macinnis-Ng, Cate, additional, Maréchaux, Isabelle, additional, Martin, Timothy A., additional, Matheny, Ashley, additional, McDowell, Nate, additional, McMahon, Sean, additional, Meir, Patrick, additional, Mészáros, Ilona, additional, Migliavacca, Mirco, additional, Mitchell, Patrick, additional, Mölder, Meelis, additional, Montagnani, Leonardo, additional, Moore, Georgianne W., additional, Nakada, Ryogo, additional, Niu, Furong, additional, Nolan, Rachael H., additional, Norby, Richard, additional, Novick, Kimberly, additional, Oberhuber, Walter, additional, Obojes, Nikolaus, additional, Oishi, Christopher A., additional, Oliveira, Rafael S., additional, Oren, Ram, additional, Ourcival, Jean-Marc, additional, Paljakka, Teemu, additional, Perez-Priego, Oscar, additional, Peri, Pablo L., additional, Peters, Richard L., additional, Pfautsch, Sebastian, additional, Pockman, William T., additional, Preisler, Yakir, additional, Rascher, Katherine, additional, Robinson, George, additional, Rocha, Humberto, additional, Rocheteau, Alain, additional, Röll, Alexander, additional, Rosado, Bruno, additional, Rowland, Lucy, additional, Rubtsov, Alexey V., additional, Sabaté, Santiago, additional, Salmon, Yann, additional, Salomón, Roberto L., additional, Sánchez-Costa, Elisenda, additional, Schäfer, Karina V. R., additional, Schuldt, Bernhard, additional, Shashkin, Alexandr, additional, Stahl, Clément, additional, Stojanović, Marko, additional, Suárez, Juan Carlos, additional, Sun, Ge, additional, Szatniewska, Justyna, additional, Tatarinov, Fyodor, additional, Tesař, Miroslav, additional, Thomas, Frank M., additional, Tor-ngern, Pantana, additional, Urban, Josef, additional, Valladares, Fernando, additional, van der Tol, Christiaan, additional, van Meerveld, Ilja, additional, Varlagin, Andrej, additional, Voigt, Holm, additional, Warren, Jeffrey, additional, Werner, Christiane, additional, Werner, Willy, additional, Wieser, Gerhard, additional, Wingate, Lisa, additional, Wullschleger, Stan, additional, Yi, Koong, additional, Zweifel, Roman, additional, Steppe, Kathy, additional, Mencuccini, Maurizio, additional, and Martínez-Vilalta, Jordi, additional

Published
2020
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42. Supplementary material to "Global transpiration data from sap flow measurements: the SAPFLUXNET database"

Author

Poyatos, Rafael, primary, Granda, Víctor, additional, Flo, Víctor, additional, Adams, Mark A., additional, Adorján, Balázs, additional, Aguadé, David, additional, Aidar, Marcos P.M., additional, Allen, Scott, additional, Alvarado-Barrientos, M. Susana, additional, Anderson-Teixeira, Kristina J., additional, Aparecido, Luiza Maria, additional, Arain, M. Altaf, additional, Aranda, Ismael, additional, Asbjornsen, Heidi, additional, Baxter, Robert, additional, Beamesderfer, Eric, additional, Berry, Z. Carter, additional, Berveiller, Daniel, additional, Blakely, Bethany, additional, Boggs, Johnny, additional, Bohrer, Gil, additional, Bolstad, Paul V., additional, Bonal, Damien, additional, Bracho, Rosvel, additional, Brito, Patricia, additional, Brodeur, Jason, additional, Casanoves, Fernando, additional, Chave, Jérôme, additional, Chen, Hui, additional, Cisneros, Cesar, additional, Clark, Kenneth, additional, Cremonese, Edoardo, additional, David, Jorge S., additional, David, Teresa S., additional, Delpierre, Nicolas, additional, Desai, Ankur R., additional, Do, Frederic C., additional, Dohnal, Michal, additional, Domec, Jean-Christophe, additional, Dzikiti, Sebinasi, additional, Edgar, Colin, additional, Eichstaedt, Rebekka, additional, El-Madany, Tarek S., additional, Elbers, Jan, additional, Eller, Cleiton B., additional, Euskirchen, Eugénie S., additional, Ewers, Brent, additional, Fonti, Patrick, additional, Forner, Alicia, additional, Forrester, David I., additional, Freitas, Helber C., additional, Galvagno, Marta, additional, Garcia-Tejera, Omar, additional, Ghimire, Chandra Prasad, additional, Gimeno, Teresa E., additional, Grace, John, additional, Granier, André, additional, Griebel, Anne, additional, Guangyu, Yan, additional, Gush, Mark B., additional, Hanson, Paul, additional, Hasselquist, Niles J., additional, Heinrich, Ingo, additional, Hernandez-Santana, Virginia, additional, Herrmann, Valentine, additional, Hölttä, Teemu, additional, Holwerda, Friso, additional, Hongzhong, Dang, additional, Irvine, James, additional, Isarangkool Na Ayutthaya, Supat, additional, Jarvis, Paul G., additional, Jochheim, Hubert, additional, Joly, Carlos A., additional, Kaplick, Julia, additional, Kim, Hyun Seok, additional, Klemedtsson, Leif, additional, Kropp, Heather, additional, Lagergren, Fredrik, additional, Lane, Patrick, additional, Lang, Petra, additional, Lapenas, Andrei, additional, Lechuga, Víctor, additional, Lee, Minsu, additional, Leuschner, Christoph, additional, Limousin, Jean-Marc, additional, Linares, Juan Carlos, additional, Linderson, Maj-Lena, additional, Lindroth, Andres, additional, Llorens, Pilar, additional, López-Bernal, Álvaro, additional, Loranty, Michael M., additional, Lüttschwager, Dietmar, additional, Macinnis-Ng, Cate, additional, Maréchaux, Isabelle, additional, Martin, Timothy A., additional, Matheny, Ashley, additional, McDowell, Nate, additional, McMahon, Sean, additional, Meir, Patrick, additional, Mészáros, Ilona, additional, Migliavacca, Mirco, additional, Mitchell, Patrick, additional, Mölder, Meelis, additional, Montagnani, Leonardo, additional, Moore, Georgianne W., additional, Nakada, Ryogo, additional, Niu, Furong, additional, Nolan, Rachael H., additional, Norby, Richard, additional, Novick, Kimberly, additional, Oberhuber, Walter, additional, Obojes, Nikolaus, additional, Oishi, Christopher A., additional, Oliveira, Rafael S., additional, Oren, Ram, additional, Ourcival, Jean-Marc, additional, Paljakka, Teemu, additional, Perez-Priego, Oscar, additional, Peri, Pablo L., additional, Peters, Richard L., additional, Pfautsch, Sebastian, additional, Pockman, William T., additional, Preisler, Yakir, additional, Rascher, Katherine, additional, Robinson, George, additional, Rocha, Humberto, additional, Rocheteau, Alain, additional, Röll, Alexander, additional, Rosado, Bruno, additional, Rowland, Lucy, additional, Rubtsov, Alexey V., additional, Sabaté, Santiago, additional, Salmon, Yann, additional, Salomón, Roberto L., additional, Sánchez-Costa, Elisenda, additional, Schäfer, Karina V. R., additional, Schuldt, Bernhard, additional, Shashkin, Alexandr, additional, Stahl, Clément, additional, Stojanović, Marko, additional, Suárez, Juan Carlos, additional, Sun, Ge, additional, Szatniewska, Justyna, additional, Tatarinov, Fyodor, additional, Tesař, Miroslav, additional, Thomas, Frank M., additional, Tor-ngern, Pantana, additional, Urban, Josef, additional, Valladares, Fernando, additional, van der Tol, Christiaan, additional, van Meerveld, Ilja, additional, Varlagin, Andrej, additional, Voigt, Holm, additional, Warren, Jeffrey, additional, Werner, Christiane, additional, Werner, Willy, additional, Wieser, Gerhard, additional, Wingate, Lisa, additional, Wullschleger, Stan, additional, Yi, Koong, additional, Zweifel, Roman, additional, Steppe, Kathy, additional, Mencuccini, Maurizio, additional, and Martínez-Vilalta, Jordi, additional

Published
2020
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48. PRELIMINARY RESULTS OF GAMMA-RAY SPECTROSCOPY FOR DETECTION OF SNOW WATER EQUIVALENT IN JIZERA MOUNTAINS.

Author

Klejchová, Abigail, Dohnal, Michal, and Tesař, Miroslav

Subjects
SNOW accumulation, ATMOSPHERIC temperature, SPECTROMETRY, TEMPERATE climate, ISOTOPES
Abstract

The snow water equivalent is an important snow characteristic as it provides hydrologically relevant information about the amount of water stored in the snowpack. The experimental catchment in the Jizera Mountains was equipped with the gamma-ray spectroscope CS725. The sensor uses emitted electromagnetic signals of isotopes 40K and 208Tl to remotely and continuously measure the snow water equivalent. Two winter seasons, 2018-2019 and 2019-2020, were monitored, and the obtained data were analyzed together with the complementary measurements available (snow depth, precipitation, air temperature). The sensor was tested in contrasting conditions of the precipitation-rich winter period 2018-2019 and the mild winter period 2019-2020. Our measurement showed that the SWE values derived from both isotopes are very similar and logically correspond well with the other measurements at the site. As far as we know, the first use of the sensor in the Czech Republic has proven usability in the conditions of the temperate montane catchment. [ABSTRACT FROM AUTHOR]

Published
2022
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