World's Best Scientists 2026 revealed!
Claudia Wagner-Riddle

Claudia Wagner-Riddle

D-Index & Metrics

Plant Science and Agronomy

D-Index
51
Citations
9058
World Ranking
2030
National Ranking
86

Claudia Wagner-Riddle publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Claudia Wagner-Riddle sits on this spectrum.

36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36 publications 467+

This scientist: 220 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

Claudia Wagner-Riddle D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Claudia Wagner-Riddle sits on this spectrum.

30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 51 D-Index — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

Research.com Recognitions

  • 2018 - Fellow of the Soil Science Society of America (SSSA)

Overview

What is she best known for?

The fields of study she is best known for:

  • Ecology
  • Agriculture
  • Carbon dioxide

Claudia Wagner-Riddle mostly deals with Nitrous oxide, Greenhouse gas, Agronomy, Soil water and Fertilizer. Her study in Nitrous oxide is interdisciplinary in nature, drawing from both Environmental chemistry, Denitrification, Trace gas and Environmental engineering. Claudia Wagner-Riddle interconnects Eucalyptus, Methane, Land use, land-use change and forestry and Manure in the investigation of issues within Greenhouse gas.

Her Agronomy research includes themes of Biomass and Agriculture. Her work carried out in the field of Soil water brings together such families of science as Atmospheric sciences, Nitrogen cycle, Precipitation and Temporal scales. Her work is dedicated to discovering how Fertilizer, Nitrate are connected with Nitrogen dioxide and Animal science and other disciplines.

Her most cited work include:

  • Intensive measurement of nitrous oxide emissions from a corn–soybean–wheat rotation under two contrasting management systems over 5 years (209 citations)
  • Estimation of N2O emissions from agricultural soils in Canada. I. Development of a country-specific methodology (200 citations)
  • Estimates of nitrous oxide emissions from agricultural fields over 28 months (193 citations)

What are the main themes of her work throughout her whole career to date?

Claudia Wagner-Riddle spends much of her time researching Agronomy, Greenhouse gas, Manure, Nitrous oxide and Methane. Her studies in Agronomy integrate themes in fields like Soil water and Leaching. Her work deals with themes such as Cover crop, Waste management, Agriculture and Environmental protection, which intersect with Greenhouse gas.

The various areas that she examines in her Manure study include Slurry and Animal science. Her biological study deals with issues like Atmospheric sciences, which deal with fields such as Wind speed and Climate change. Her Methane research includes elements of Biogas and Environmental engineering.

She most often published in these fields:

  • Agronomy (35.29%)
  • Greenhouse gas (30.48%)
  • Manure (30.48%)

What were the highlights of her more recent work (between 2018-2021)?

  • Greenhouse gas (30.48%)
  • Nitrous oxide (29.41%)
  • Agronomy (35.29%)

In recent papers she was focusing on the following fields of study:

Her main research concerns Greenhouse gas, Nitrous oxide, Agronomy, Fertilizer and Manure. Her biological study spans a wide range of topics, including Cover crop, Environmental engineering, Methane and Environmental protection. Her Nitrous oxide research is multidisciplinary, incorporating perspectives in Nitrogen fertilizer, Legume, Climate change and Atmospheric sciences.

While the research belongs to areas of Agronomy, she spends her time largely on the problem of Soil management, intersecting her research to questions surrounding Contamination and Groundwater. Her Fertilizer research incorporates themes from Soil water, Leaching, Nitrification, Crop yield and Nitrate. Her study looks at the relationship between Manure and fields such as Animal science, as well as how they intersect with chemical problems.

Between 2018 and 2021, her most popular works were:

  • Modifying fertilizer rate and application method reduces environmental nitrogen losses and increases corn yield in Ontario. (9 citations)
  • Short-term response of soil N-cycling genes and transcripts to fertilization with nitrification and urease inhibitors, and relationship with field-scale N2O emissions (9 citations)
  • Quantifying the relationships between soil fraction mass, fraction carbon, and total soil carbon to assess mechanisms of physical protection (9 citations)

In her most recent research, the most cited papers focused on:

  • Ecology
  • Agriculture
  • Carbon dioxide

Her primary scientific interests are in Agronomy, Nitrous oxide, Soil water, Fertilizer and Greenhouse gas. Her research in Nitrous oxide intersects with topics in Nitrogen fertilizer, Atmospheric sciences and Sowing. Her Atmospheric sciences study incorporates themes from Agriculture and Spring.

Her Soil water study combines topics from a wide range of disciplines, such as Animal science and Drainage. In her study, Tile drainage, Manure management, Silage and Manure is inextricably linked to Leaching, which falls within the broad field of Fertilizer. When carried out as part of a general Greenhouse gas research project, her work on Enteric fermentation and Carbon footprint is frequently linked to work in Productivity, Life-cycle assessment and Profitability index, therefore connecting diverse disciplines of study.

Best Publications

  • Methane and nitrous oxide emissions from Canadian animal agriculture: A review

    E. Kebreab;K. Clark;C. Wagner-Riddle

  • Estimation of N2O emissions from agricultural soils in Canada. I. Development of a country-specific methodology

    P. Rochette;D E Worth;R L Lemke;B G McConkey

  • Globally important nitrous oxide emissions from croplands induced by freeze–thaw cycles

    Claudia Wagner-Riddle;Katelyn A. Congreves;Diego Abalos;Aaron A. Berg

  • Intensive measurement of nitrous oxide emissions from a corn–soybean–wheat rotation under two contrasting management systems over 5 years

    Claudia Wagner‐Riddle;Adriana Furon;Nicole L. Mclaughlin;Ivan Lee

  • Estimates of nitrous oxide emissions from agricultural fields over 28 months

    C. Wagner-Riddle;G. W. Thurtell;G. K. Kidd;E. G. Beauchamp

  • Nitrous oxide emissions from agricultural fields during winter and spring thaw as affected by management practices

    C. Wagner-Riddle;G.W. Thurtell

  • Greenhouse gas balance and carbon footprint of beef cattle in three contrasting pasture-management systems in Brazil

    Eduardo Barretto de Figueiredo;Susantha Jayasundara;Ricardo de Oliveira Bordonal;Telma Teresinha Berchielli

  • Anti-methanogenic effects of monensin in dairy and beef cattle: A meta-analysis

    Jad Ranga Niroshan Appuhamy;AB Strathe;S Jayasundara;C Wagner-Riddle

  • Nitrous oxide emissions and biogeochemical responses to soil freezing-thawing and drying-wetting

    K.A. Congreves;C. Wagner-Riddle;B.C. Si;T.J. Clough

  • Linking Nitrous Oxide Flux During Spring Thaw to Nitrate Denitrification in the Soil Profile

    C. Wagner-Riddle;Q. C. Hu;E. van Bochove;S. Jayasundara

  • Toward Improved Coefficients for Predicting Direct N2O Emissions from Soil in Canadian Agroecosystems

    B. L. Helgason;H. H. Janzen;M. H. Chantigny;C. F. Drury

  • Evaluating annual nitrous oxide fluxes at the ecosystem scale

    Peter M. Groffman;Rainer Brumme;Klaus Butterbach-Bahl;Karen E. Dobbie

  • Season and management related changes in the diversity of nitrifying and denitrifying bacteria over winter and spring

    Jillian Smith;Claudia Wagner-Riddle;Kari Dunfield

  • Greenhouse gas emissions from stored liquid swine manure in a cold climate

    Kyu-Hyun Park;Andrew G. Thompson;Michèle Marinier;Karen Clark

  • Minimizing nitrogen losses from a corn–soybean–winter wheat rotation with best management practices

    Susantha Jayasundara;Claudia Wagner-Riddle;Gary Parkin;Peter von Bertoldi

  • Long-term Trends in Corn Yields and Soil Carbon under Diversified Crop Rotations.

    Marek Jarecki;Brian Grant;Ward Smith;Bill Deen

  • Mechanisms leading to enhanced soil nitrous oxide fluxes induced by freeze—thaw cycles

    Neil Risk;David Snider;Claudia Wagner-Riddle

  • Abundance and gene expression in nitrifier and denitrifier communities associated with a field scale spring thaw N2O flux event

    Deanna D. Németh;Claudia Wagner-Riddle;Kari E. Dunfield

  • Micrometeorological measurements over 3 years reveal differences in N2 O emissions between annual and perennial crops.

    Diego Abalos;Shannon E. Brown;Andrew C. Vanderzaag;Robert J. Gordon

  • Emissions of N2O and CH4 during the composting of liquid swine manure.

    A. G. Thompson;C. Wagner-Riddle;R. Fleming

  • Nitrous and Nitrogen Oxide Emissions from Turfgrass Receiving Different Forms of Nitrogen Fertilizer

    S. R. Maggiotto;J. A. Webb;C. Wagner-Riddle;G. W. Thurtell

Frequent Co-Authors

Kari E. Dunfield
Kari E. Dunfield University of Guelph
Andrew VanderZaag
Andrew VanderZaag Agriculture and Agri-Food Canada
Craig F. Drury
Craig F. Drury Agriculture and Agriculture-Food Canada
Ward Smith
Ward Smith Agriculture and Agriculture-Food Canada
Ermias Kebreab
Ermias Kebreab University of California, Davis
Diego Abalos
Diego Abalos Aarhus University
Raymond L. Desjardins
Raymond L. Desjardins Agriculture and Agriculture-Food Canada
Alfons Weersink
Alfons Weersink University of Guelph
Mario Tenuta
Mario Tenuta University of Manitoba
Ralf M. Staebler
Ralf M. Staebler Environment and Climate Change Canada

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