World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
46
Citations
7381
World Ranking
6140
National Ranking
16

Karl G. Richards 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 Karl G. Richards 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: 246 publications — 77th percentile

77% of scientists in this discipline score the same or lower.

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

Karl G. Richards 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 Karl G. Richards 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

Karl G. Richards is affiliated with Teagasc - The Irish Agriculture and Food Development Authority in Ireland. Their research primarily focuses on environmental science and agricultural and biological sciences, with a notable emphasis on subfields including environmental chemistry, soil science, pollution, ecology, and industrial and manufacturing engineering.

The scientist's work covers a range of topics related to soil and water nutrient dynamics, soil carbon and nitrogen dynamics, wastewater treatment and nitrogen removal, pharmaceutical and antibiotic environmental impacts, phosphorus and nutrient management, peatlands and wetlands ecology, and pesticide and herbicide environmental studies.

Their recent publications include:

  • Urease and Nitrification Inhibitors-As Mitigation Tools for Greenhouse Gas Emissions in Sustainable Dairy Systems: A Review (2020) published in Sustainability
  • Nitrogen fertilisers with urease inhibitors reduce nitrous oxide and ammonia losses, while retaining yield in temperate grassland (2020) published in The Science of The Total Environment
  • Increasing soil pH reduces fertiliser derived N2O emissions in intensively managed temperate grassland (2021) published in Agriculture Ecosystems & Environment
  • Beneficial effects of multi-species mixtures on N2O emissions from intensively managed grassland swards (2021) published in The Science of The Total Environment
  • Application of plasma activated water for decontamination of alfalfa and mung bean seeds (2020) published in Food Microbiology

Frequent co-authors in their publications include:

  • Gary Lanigan
  • Patrick J. Forrestal
  • Dominika Król
  • Enda Cummins
  • Martin Danaher

Karl G. Richards has published multiple times in several scientific journals, with the highest number of contributions appearing in:

  • The Science of The Total Environment (13 publications)
  • Agriculture Ecosystems & Environment (5 publications)
  • Soil Biology and Biochemistry (4 publications)
  • Irish Journal of Agricultural and Food Research (3 publications)
  • Nutrient Cycling in Agroecosystems (3 publications)

Best Publications

  • Microbial Contamination of Fresh Produce: What, Where, and How?

    Bernardino Machado-Moreira;Bernardino Machado-Moreira;Karl Richards;Fiona Brennan;Florence Abram

  • Management, regulation and environmental impacts of nitrogen fertilization in northwestern Europe under the Nitrates Directive; a benchmark study

    H. J. M. van Grinsven;H. F. M. ten Berge;T. Dalgaard;B. Fraters

  • Denitrification potential in subsoils: A mechanism to reduce nitrate leaching to groundwater

    Mohammad M. R. Jahangir;Mohammad M. R. Jahangir;Mohammed I. Khalil;Mohammed I. Khalil;Paul Johnston;L. M. Cardenas

  • Reducing nitrous oxide emissions by changing N fertiliser use from calcium ammonium nitrate (CAN) to urea based formulations.

    M.A. Harty;P.J. Forrestal;C.J. Watson;K.L. McGeough

  • Exploring nitrogen indicators of farm performance among farm types across several European case studies

    M. Quemada;L. Lassaletta;L.S. Jensen;O. Godinot

  • Combining stable isotopes with contamination indicators: A method for improved investigation of nitrate sources and dynamics in aquifers with mixed nitrogen inputs.

    Eddy P. Minet;Eddy P. Minet;R. Goodhue;Wolfram Meier-Augenstein;R. M. Kalin

  • Long-Term Persistence and Leaching of Escherichia coli in Temperate Maritime Soils

    Fiona P. Brennan;Fiona P. Brennan;Vincent O'Flaherty;Gaelene Kramers;Gaelene Kramers;Jim Grant

  • Modelling soil phosphorus decline: Expectations of Water Framework Directive policies

    R. P. O. Schulte;A. R. Melland;O. Fenton;M. Herlihy

  • Evaluation of cover crop and reduced cultivation for reducing nitrate leaching in Ireland.

    K. V. Hooker;C. E. Coxon;R. Hackett;L. E. Kirwan

  • Urease and Nitrification Inhibitors—As Mitigation Tools for Greenhouse Gas Emissions in Sustainable Dairy Systems: A Review

    Maria P. Byrne;John T. Tobin;Patrick J. Forrestal;Martin Danaher

  • Dairy industry derived wastewater treatment sludge: Generation, type and characterization of nutrients and metals for agricultural reuse

    S.M. Ashekuzzaman;Patrick Forrestal;Karl Richards;Owen Fenton

  • Improving and disaggregating N2O emission factors for ruminant excreta on temperate pasture soils

    Dominika Krol;Rachael Carolan;E. Minet;K. L. McGeough

  • Phylogenetic and functional potential links pH and N 2 O emissions in pasture soils

    M. D. Sainur Samad;Ambarish Biswas;Lars R. Bakken;Timothy J. Clough

  • Time lag: a methodology for the estimation of vertical and horizontal travel and flushing timescales to nitrate threshold concentrations in Irish aquifers

    Owen Fenton;Rogier P.O. Schulte;Philip Jordan;Stanley T.J. Lalor

  • In situ denitrification and DNRA rates in groundwater beneath an integrated constructed wetland.

    M.M.R. Jahangir;M.M.R. Jahangir;M.M.R. Jahangir;O. Fenton;C. Müller;R. Harrington

  • Ammonia emissions from urea, stabilized urea and calcium ammonium nitrate: insights into loss abatement in temperate grassland

    Patrick J. Forrestal;Mary A. Harty;Mary A. Harty;Rachael Carolan;Gary Lanigan

  • Denitrification and indirect N2O emissions in groundwater: Hydrologic and biogeochemical influences

    Mohammad M. R. Jahangir;P. Johnston;M. Barrett;M.I. Khalil

  • Carbon and nitrogen dynamics and greenhouse gas emissions in constructed wetlands treating wastewater: a review

    Mohammad M. R. Jahangir;Karl G. Richards;Mark G. Healy;L. Gill

  • Characterization of Environmentally Persistent Escherichia coli Isolates Leached from an Irish Soil

    Fiona P. Brennan;Fiona P. Brennan;Florence Abram;Fabio A. Chinalia;Karl G. Richards

  • Anaerobic digestion of agricultural manure and biomass - Critical indicators of risk and knowledge gaps.

    Rajat Nag;Agathe Auer;Bryan K. Markey;Paul Whyte

  • Factors affecting nitrate distribution in shallow groundwater under a beef farm in South Eastern Ireland

    Owen Fenton;Karl G. Richards;Laura Kirwan;Mohammed I. Khalil

  • AGRICULTURE, METEOROLOGY AND WATER QUALITY IN IRELAND: A REGIONAL EVALUATION OF PRESSURES AND PATHWAYS OF NUTRIENT LOSS TO WATER

    Rogier P. Schulte;Karl G. Richards;Karen M. Daly;Isabelle Kurz

Frequent Co-Authors

Gary Lanigan
Gary Lanigan Teagasc - The Irish Agriculture and Food Development Authority
Owen Fenton
Owen Fenton Teagasc - The Irish Agriculture and Food Development Authority
Christoph Müller
Christoph Müller Potsdam Institute for Climate Impact Research
Vincent O'Flaherty
Vincent O'Flaherty University of Galway
Tim J. Clough
Tim J. Clough Lincoln University
Per-Erik Mellander
Per-Erik Mellander Teagasc - The Irish Agriculture and Food Development Authority
Mark G. Healy
Mark G. Healy University of Galway
Rogier P.O. Schulte
Rogier P.O. Schulte Wageningen University & Research
Karl Ritz
Karl Ritz University of Nottingham
Nicholas M. Holden
Nicholas M. Holden University College Dublin

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