World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
46
Citations
6585
World Ranking
6181
National Ranking
18

Josef Hejzlar publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Josef Hejzlar sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 149 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Josef Hejzlar D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Josef Hejzlar sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 46 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Josef Hejzlar is affiliated with the Czech Academy of Sciences in the Czech Republic. Their research concentrates primarily in the fields of Environmental Science and Earth and Planetary Sciences, with a significant focus on subfields such as Environmental Chemistry, Ecology, Oceanography, Nature and Landscape Conservation, and Water Science and Technology.

The scientist's main topics of research include:

  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Marine and Coastal Ecosystems
  • Fish Ecology and Management Studies
  • Soil and Water Nutrient Dynamics
  • Hydrology and Watershed Management Studies
  • Microbial Community Ecology and Physiology
  • Groundwater and Isotope Geochemistry

Josef Hejzlar has contributed to a number of peer-reviewed journals. The most frequent publication venues are:

  • The Science of The Total Environment
  • SSRN Electronic Journal
  • Global Change Biology
  • Ecological Indicators
  • Water

Their recent publications landmark work across various aspects of environmental and freshwater ecosystem research. Some selected recent papers include:

  • "Widespread deoxygenation of temperate lakes," 2021, published in Nature
  • "Storm impacts on phytoplankton community dynamics in lakes," 2020, published in Global Change Biology
  • "Recovery of freshwater microbial communities after extreme rain events is mediated by cyclic succession," 2021, published in Nature Microbiology
  • "A framework for ensemble modelling of climate change impacts on lakes worldwide: the ISIMIP Lake Sector," 2022, published in Geoscientific Model Development
  • "Environmental DNA metabarcoding uncovers environmental correlates of fish communities in spatially heterogeneous freshwater habitats," 2021, published in Ecological Indicators

Collaboration has been an integral part of their work. Frequent coauthors include:

  • Petr Porcal
  • Jiřı́ Kopáček
  • Ma. Cristina Paule-Mercado
  • Mojmír Vašek
  • Hans-Peter Grossart

Throughout their career, Josef Hejzlar has contributed extensively to understanding the chemical and ecological dynamics of aquatic and terrestrial environments. Their research encompasses the interplay between nutrient cycles, microbial community structure, and ecosystem responses to environmental disturbances, including climate change and extreme weather events.

Best Publications

  • Widespread deoxygenation of temperate lakes

    Stephen F. Jane;Stephen F. Jane;Gretchen J.A. Hansen;Benjamin M. Kraemer;Peter R. Leavitt;Peter R. Leavitt

  • Aluminum control of phosphorus sorption by lake sediments.

    Jirí Kopácek;Jakub Borovec;Josef Hejzlar;Kai-Uwe Ulrich

  • Storm impacts on phytoplankton community dynamics in lakes

    Jason D. Stockwell;Jonathan P. Doubek;Rita Adrian;Rita Adrian;Orlane Anneville

  • The apparent and potential effects of climate change on the inferred concentration of dissolved organic matter in a temperate stream (the Malše River, South Bohemia)

    Josef Hejzlar;Martin Dubrovský;Josef Buchtele;Martin Růžička

  • Nitrogen processes in aquatic ecosystems

    P Durand;L Breuer;Penny J. Johnes;G Billen

  • Phosorus availability in an acidified watershed-lake ecosystem

    Jiřĺ Kopáček;Josef Hejzlar;Jakub Borovec;Petr Porcal

  • Semi-micro determination of total phosphorus in fresh waters with perchloric acid digestion

    J. Kopáček;J. Hejzlar

  • Recovery of freshwater microbial communities after extreme rain events is mediated by cyclic succession.

    Tanja Shabarova;Michaela M. Salcher;Petr Porcal;Petr Porcal;Petr Znachor;Petr Znachor

  • Widespread diminishing anthropogenic effects on calcium in freshwaters

    Gesa A. Weyhenmeyer;Jens Hartmann;Dag O. Hessen;Jiří Kopáček

  • Reversibility of acidification of mountain lakes after reduction in nitrogen and sulphur emissions in Central Europe

    Jiří Kopáček;Josef Hejzlar;Evžien Stuchlík;Jan Fott

  • Microbial polymers in the aquatic environment—I: Production by activated sludge microorganisms under different conditions

    J Hejzlar;J Chudoba

  • Broad Habitat Range of the Phylogenetically Narrow R-BT065 Cluster, Representing a Core Group of the Betaproteobacterial Genus Limnohabitans

    Karel Šimek;Karel Šimek;Vojtěch Kasalický;Vojtěch Kasalický;Jan Jezbera;Jitka Jezberová

  • Hysteresis in Reversal of Central European Mountain Lakes from Atmospheric Acidification

    Jiří Kopáček;Evžen StuchlÍk;Josef Veselý;Jochen Schaumburg

  • Ensemble modelling of nutrient loads and nutrient load partitioning in 17 European catchments

    B. Kronvang;H. Behrendt;H.E. Andersen;B. Arheimer

  • Natural inactivation of phosphorus by aluminum in atmospherically acidified water bodies.

    Jiřı́ Kopáček;Kai-Uwe Ulrich;Josef Hejzlar;Jakub Borovec

  • Spatio-temporal patterns of bacterioplankton production and community composition related to phytoplankton composition and protistan bacterivory in a dam reservoir

    Karel Simek;Karel Hornak;Jan Jezbera;Jirri Nedoma

  • Determination of low chemical oxygen demand values in water by the dichromate semi-micro method

    Josef Hejzlar;Jiří Kopáček

  • The Effect of Reservoirs on Phosphorus Concentration

    Milan Straškraba;Iva Dostálková;Josef Hejzlar;Vojtêch Vyhnálek

  • Factors Controlling the Export of Nitrogen from Agricultural Land in a Large Central European Catchment during 1900–2010

    Jiří Kopáček;Josef Hejzlar;Maximilian Posch

  • Nitrogen and phosphorus retention in surface waters: an inter-comparison of predictions by catchment models of different complexity

    J. Hejzlar;S. Anthony;B. Arheimer;H. Behrendt

  • Changes in bacterial community composition and microbial activities along the longitudinal axis of two canyon-shaped reservoirs with different inflow loading

    Michal Mašín;Michal Mašín;Jan Jezbera;Jan Jezbera;Jiří Nedoma;Viera Straškrabová;Viera Straškrabová

  • Changes in the Epilimnetic Bacterial Community Composition, Production, and Protist-Induced Mortality along the Longitudinal Axis of a Highly Eutrophic Reservoir

    K. Šimek;J. Armengol;M. Comerma;J.C. Garcia

Frequent Co-Authors

Jiří Kopáček
Jiří Kopáček Institute of Hydrobiology, Biology Centre of the Academy of Sciences of the Czech Republic
Karel Šimek
Karel Šimek Institute of Hydrobiology, Biology Centre of the Academy of Sciences of the Czech Republic
Rita Adrian
Rita Adrian Freie Universität Berlin
Hans-Peter Grossart
Hans-Peter Grossart University of Potsdam
James A. Rusak
James A. Rusak Ministry of the Environment, Conservation and Parks
Erik Jeppesen
Erik Jeppesen Aarhus University
Wim Thiery
Wim Thiery Vrije Universiteit Brussel
Meryem Beklioglu
Meryem Beklioglu Middle East Technical University
Martin Søndergaard
Martin Søndergaard Aarhus University
Maximilian Posch
Maximilian Posch International Institute for Applied Systems Analysis

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For those interested in expanding their expertise beyond Environmental Sciences, pursuing further education online offers flexible options. Many professionals explore advanced degrees like the best eds to edd programs to deepen their leadership and research skills within educational or environmental fields.

Social work also intersects with environmental justice and community health, making online dsw programs a valuable pathway for those aiming to influence policy or support vulnerable populations affected by environmental issues.

For undergraduates seeking a versatile or budget-friendly start, pursuing an online general studies bachelor degree cheap can provide a broad educational foundation with the potential to specialize later in environmental topics or related disciplines.

Additionally, some may prefer to ease into higher education with the easiest bachelor's degree to get, balancing coursework with practical experience in environmental settings and building confidence for advanced studies.

Exploring these diverse online degree options can help tailor your career path to your interests and goals while accommodating your lifestyle.

Best Scientists Citing Josef Hejzlar

Trending Scientists

Recently Published Articles