World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
70
Citations
25318
World Ranking
1650
National Ranking
695

David A. Laird 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 David A. Laird 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 174 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

David A. Laird 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 David A. Laird 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 70 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

David A. Laird is affiliated with Iowa State University in the United States. Their research primarily focuses on agricultural and biological sciences and environmental science, with significant work in related subfields such as soil science, industrial and manufacturing engineering, biomedical engineering, agronomy and crop science, and environmental engineering.

The scientist has contributed extensively to key topics including soil carbon and nitrogen dynamics, phosphorus and nutrient management, bioenergy crop production and management, thermochemical biomass conversion processes, clay minerals and soil interactions, soil and unsaturated flow, and environmental impact and sustainability.

Among the recent publications authored or co-authored by David A. Laird are:

  • Estimating the organic oxygen content of biochar, 2020, Scientific Reports
  • Enhancing Biochar as Scaffolding for Slow Release of Nitrogen Fertilizer, 2021, ACS Sustainable Chemistry & Engineering
  • Capture and Release of Orthophosphate by Fe-Modified Biochars: Mechanisms and Environmental Applications, 2021, ACS Sustainable Chemistry & Engineering
  • Biocharsupply-chain and challenges to commercialization, 2022, GCB Bioenergy
  • Global land-use and carbon emission implications from biochar application to cropland in the United States, 2020, Journal of Cleaner Production

David A. Laird regularly collaborates with a network of researchers, including Santanu Bakshi, Chumki Banik, Ryan Smith, Robert C. Brown, and Sotirios V. Archontoulis, illustrating a consistent interdisciplinary approach in their research projects.

The scientist publishes frequently in specific venues, prominently in the journals GCB Bioenergy, ACS Sustainable Chemistry & Engineering, Scientific Reports, Journal of Cleaner Production, and the Journal of Soil and Water Conservation.

Best Publications

  • Near-Infrared Reflectance Spectroscopy–Principal Components Regression Analyses of Soil Properties

    Cheng-Wen Chang;David A. Laird;Maurice J. Mausbach;Charles R. Hurburgh

  • Impact of biochar amendments on the quality of a typical Midwestern agricultural soil

    David A. Laird;Pierce Fleming;Dedrick D. Davis;Robert Horton

  • Biochar impact on nutrient leaching from a Midwestern agricultural soil.

    David Laird;Pierce Fleming;Baiqun Wang;Robert Horton

  • The Charcoal Vision: A Win–Win–Win Scenario for Simultaneously Producing Bioenergy, Permanently Sequestering Carbon, while Improving Soil and Water Quality

    David A. Laird

  • Review of the pyrolysis platform for coproducing bio-oil and biochar

    David A. Laird;Robert C. Brown;James E. Amonette;Johannes C. Lehmann

  • Bio-oil and bio-char production from corn cobs and stover by fast pyrolysis

    Charles A. Mullen;Akwasi A. Boateng;Neil M. Goldberg;Isabel M. Lima

  • Effects of long-term soil acidification due to nitrogen fertilizer inputs in Wisconsin

    Phillip Barak;Babou O. Jobe;Armand R. Krueger;Lloyd A. Peterson

  • Assessing potential of biochar for increasing water‐holding capacity of sandy soils

    Andres S. Basso;Fernando E. Miguez;David A. Laird;Robert Horton

  • NEAR-INFRARED REFLECTANCE SPECTROSCOPIC ANALYSIS OF SOIL C AND N

    Cheng-Wen Chang;David A. Laird

  • The Charcoal Vision : A Win – Win – Win Scenario for Simultaneously Producing Bioenergy , Permanently Sequestering Carbon , while Improving Soil and Water Quality

    Unknown

  • Short-term CO2 mineralization after additions of biochar and switchgrass to a Typic Kandiudult ☆

    J.M. Novak;W.J. Busscher;D.W. Watts;D.A. Laird

  • Stability of Biochar in Soil

    Johannes Lehmann;Claudia Czimczik;David Laird;Saran Sohi

  • Influence of layer charge on swelling of smectites

    David A. Laird

  • Environmental benefits of biochar.

    James A. Ippolito;David A. Laird;Warren J. Busscher

  • Characterization and quantification of biochar alkalinity.

    Rivka B. Fidel;David A. Laird;Michael L. Thompson;Michael Lawrinenko

  • Sorption of tetracycline and chlortetracycline on K- and Ca-saturated soil clays, humic substances, and clay-humic complexes.

    Jutta R. V. Pils;David A. Laird

  • Atrazine Desorption from Smectites

    E. Barriuso;D. A. Laird;W. C. Koskinen;R. H. Dowdy

  • Characterization of volatile organic emissions and wastes from a swine production facility

    J. A. Zahn;J. L. Hatfield;Y. S. Do;A. A. DiSpirito

  • Adsorption of Atrazine on Smectites

    D. A. Laird;E. Barriuso;R. H. Dowdy;W. C. Koskinen

  • Arsenic sorption on zero-valent iron-biochar complexes.

    Santanu Bakshi;Chumki Banik;Samuel J. Rathke;David A. Laird

  • Anion exchange capacity of biochar

    Michael Lawrinenko;David A. Laird

  • Impact of Nitrogen Fertilization and Cropping System on Carbon Sequestration in Midwestern Mollisols

    Ann E. Russell;David Laird;Timothy B. Parkin;Antonio P. Mallarino

  • Stability of Biochar in the Soil

    Johannes Lehmann;C. I. Czimczik;David Laird;Saran Sohi

Frequent Co-Authors

Robert C. Brown
Robert C. Brown Iowa State University
Douglas L. Karlen
Douglas L. Karlen Iowa State University
Kenneth J. Moore
Kenneth J. Moore Iowa State University
Hui Li
Hui Li Michigan State University
Sotirios V. Archontoulis
Sotirios V. Archontoulis Iowa State University
Dermot J. Hayes
Dermot J. Hayes Iowa State University
Cliff T. Johnston
Cliff T. Johnston Purdue University West Lafayette
Andrew W. Lenssen
Andrew W. Lenssen Iowa State University
Jeffrey M. Novak
Jeffrey M. Novak United States Department of Agriculture
Tyson Ochsner
Tyson Ochsner Oklahoma State University

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