doc. Ing. Josef Hejzlar, CSc.
Job Position: Senior scientist - Department of Hydrochemistry and Ecosystem Modelling (HEM)
Phone:
420387775876
E-mail:
hejzlar@hbu.cas.cz
Room:
323NB
Limnology of lakes and reservoirs, mainly cycles of nutrients (carbon, nitrogen, phosphorus, sulphur etc.), eutrophication, material transport from the catchment in surface waters and mathematical modelling of hydrodynamics and water quality in water bodies
Born: 1956 in Liberec, the Czech Republic
Education:
Master of Sciences, 1980, Institute of Chemical Technology in Prague. Emphasis on water technology and water analysis.
Doctor of Philosophy (PhD), 1985, Institute of Chemical Technology in Prague. Emphasis on water and environmental chemistry. Dissertation title: "Analysis of the high molecular weight dissolved organic substances produced by microorganisms of the activated sludge."
Habilitation, 2003, University of South Bohemia in České Budějovice. Thesis title: "Phosphorus cycling in the reservoir ecosystem"
Professional experience:
Institute of Landscape Ecology CAS, since April 1, 1990, Hydrobiological Institute CAS
1985-1992, research scientist, member of hydrochemical laboratory
Since 1993, senior scientist, member of hydrochemical laboratory
1998- 2015, head of the Department of Hydrochemistry and Ecosystem Modelling
Since 1995, Faculty of Science, University of South Bohemia in České Budějovice, a part-time contract as assistant or associated professor
Projects:
Principal investigator or co-investigator of 12 national projects (GACR, GAAVCR, MSMT-COST, MZe-NAZV) and participation in 2 EU projects focused on modeling the global and local impacts in aquatic and terrestrial ecosystems (EUROHARP, REFRESH)
Description:
Tématika výuky zahrnuje limnologické a hydrochemické aspekty ekologie jezer a umělých nádrží, např. koloběhy živin (C, N, P, S), organické hmoty (primární produkce, humusové látky) a dalších prvků (Si, Fe, Mn, Al) v ekosystému "povodí - nádrž/jezero" a vododohospodářské řízení množství a kvality vody v nádržích.
| Total found: 223 records
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Koschorreck M., Downing A.S., Hejzlar J., Marcé R., Laas A., Arndt W.G., Keller P.S., Smolders A.J.P., van Dijk G., Kosten S. (2020) Hidden treasures: Human-made aquatic ecosystems harbour unexplored opportunities Ambio
49
: 531–540. DOI: 10.1007/s13280-019-01199-6 |
|
Znachor P.,
Nedoma J., Hejzlar J.,
Seďa J.,
Komárková J., Kolář V.,
Mrkvička T., Boukal D.S. (2020) Changing environmental conditions underpin long-term patterns of phytoplankton in a freshwater reservoir Science of the Total Environment
710
: 135626. DOI: 10.1016/j.scitotenv.2019.135626 |
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Gabaldon Tebar C., Devetter M., Hejzlar J.,
Šimek K.,
Znachor P.,
Nedoma J.,
Seďa J. (2019) Seasonal strengths of the abiotic and biotic drivers of a zooplankton community Freshwater Biology
64
: 1326–1341. DOI: 10.1111/fwb.13308 |
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Hejzlar J.,
Kopáček J.,
Vystavna Y. (2019) Predikce koncentrace fosforu a trofie v údolních nádržích [Prediction of phosphorus concentration and trophic conditions in reservoirs] In: Kosour D. et al. (eds.) Sborník konference Vodní nádrže 2019, 23.–24.10.2019, Brno, ČR, Povodí Moravy, s.p., Brno, SBN 978-80-907141-3-7,
101–106. |
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Rutegwa M. , Gebauer R., Veselý L., Regenda J., Strunecký O., Hejzlar J., Drozd B. (2019) Diffusive methane emissions from temperate semi-intensive carp ponds Aquaculture Environment Interactions
11
: 19-30. DOI: 10.3354/aei00296 |
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Rutegwa M. , Potužák J., Hejzlar J., Drozd B. (2019) Carbon metabolism and nutrient balance in a hypereutrophic semi-intensivefishpond Knowledge and Management of the Aquatic Ecosystystms
420
: 49. DOI: 10.1051/kmae/2019043 |
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Scharfenberger U., Jeppesen E. , Beklioglu M., Søndergaard M., Angeler D., Çakıroğlu, A.İ., Drakare S., Hejzlar J., Mahdy A., Papastergiadou E., Stefanidis K., Šorf M., Tuvikene A., Zingel P., Adrian R. (2019) Effects of trophic status, water level, and temperature on shallow lake metabolism and metabolic balance: A standardized pan-European mesocosm experiment Limnology and Oceanography
64
: 616-631. DOI: 10.1002/lno.11064 |
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Weyhenmeyer G., Hartmann J., Hessen D.O.,
Kopáček J., Hejzlar J., Jacquet S., Hamilton S.K., Verburg P., Leach T.H., Schmid M., Flaim G., Nõges T., Nõges P., Wentzky V.C., Rogora M., Rusak J., Kosten S., Paterson A.M., Teubner K., Higgins S.N., Lawrence G., Kangur K., Kokorite I., Cerasino L., Funk C., Harvey R., Moatar F., De Wit H., Zechmeister T. (2019) Widespread diminishing anthropogenic effects on calcium in freshwaters Scientific Reports
9
: 10450. DOI: 10.1038/s41598-019-46838-w |
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Hejzlar J.,
Jarošík J.,
Kopáček J.,
Vystavna Y. (2018) Trendy vývoje koncentrací fosforu v nádržích Orlík a Slapy /Trends in development of phosphorus concentrations in Orlík and Slapy Reservoirs/ VTEI
2018 (2)
: 30-35. |
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Hejzlar J., Potužák J., Drozd B., Rutegwa M. (2018) Metabolismus uhlíku a bilance živin v hypertrofním produkčním rybníku [Carbon metabolism and nutrient balance in a hypertrophic production fishpond] In: Říhová Ambrožová J., Pecinová A. (Edit.) Sborník konference Vodárenská biologie 2018, 6.-7. 2. 2018, Praha, Vodní zdroje EKOMONITOR spol. s r. o., Chrudim, ISBN 978-80-88238-06-5.
109–116. |
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Kopáček J., Evans C., Hejzlar J.,
Kaňa J.,
Porcal P., Šantrůčková H. (2018) Factors Affecting the Leaching of Dissolved Organic Carbon after Tree Dieback in an Unmanaged European Mountain Forest Environmental Science & Technology
52
: 6291-6299. DOI: 10.1021/acs.est.8b00478 |
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Kopáček J., Hejzlar J. (2018) Vltavská kronika [Chronicle of the Vltava River] Vesmír
97 (7)
: 452-455. |
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Kopáček J., Hejzlar J.,
Kaňa J.,
Porcal P.,
Turek J. (2018) Fluxes of ecologically important solutes in the Čertovo catchment–lake system from 1998–2017 Silva Gabreta
24
: 85-114. |
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Kopáček J., Hejzlar J.,
Kaňa J.,
Porcal P.,
Turek J. (2018) Fluxes of ecologically important solutes in the Plešné catchment–lake system from 2000–2017 Silva Gabreta
24
: 115-147. |
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Vystavna Y., Diadin D., Rossi P.M., Gusyev M., Hejzlar J., Mehdizadeh R., Huneau F. (2018) Quantification of water and sewage leakages from urban infrastructure into a shallow aquifer in East Ukraine Environmental Earth Sciences
77
: 748. DOI: 10.1007/s12665-018-7936-y |
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Vystavna Y., Holko L., Hejzlar J., Persoiu A., Graham N.D., Juras R., Huneau F., Gibson J. (2018) Isotopic response of runoff to forest disturbance in small mountain catchments Hydrological Processes
32
: 3650-3661. DOI: 10.1002/hyp.13280 |
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Znachor P.,
Nedoma J., Hejzlar J.,
Seďa J.,
Kopáček J., Boukal D.,
Mrkvička T. (2018) Multiple long-term trends and trend reversals dominate environmental conditions in a man-made freshwater reservoir Science of the Total Environment
624
: 24-33 . DOI: 10.1016/j.scitotenv.2017.12.061 |
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Znachor P.,
Nedoma J., Hejzlar J.,
Seďa J.,
Kopáček J., Boukal D.,
Mrkvička T. (2018) Multiple long-term trends and trend reversals dominate environmental conditions in a man-made freshwater reservoir. Science of Total Environment
624
: 24-33. DOI: 10.1016/j.scitotenv.2017.12.061 |
|
Gabaldon Tebar C., Devetter M., Hejzlar J.,
Šimek K.,
Znachor P.,
Nedoma J.,
Seďa J. (2017) Repeated flood disturbance enhances rotifer dominance and diversity in a zooplankton community of a small dammed mountain pond Journal of Limnology
76
: 292–304 . DOI: 10.4081/jlimnol.2016.1544 |
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Hejzlar J.,
Jarošík J.,
Kopáček J.,
Vystavna Y. (2017) Koncentrace fosforu v nádržích Orlík a Slapy: výsledek socioekonomického vývoje v povodí a změny klimatu [Phosphorus concentration in the Orlík and Slapy reservoirs: a result of socio-economic trends in the catchment and climate change]. In: Kosour, D. et al. (edit.) Sborník konference Vodní nádrže 2017, 3.–4.10.2017, Brno, Povodí Moravy, s.p., ISBN 978-80-905368-5-2
60–67. |
