World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
45
Citations
7038
World Ranking
6464
National Ranking
418

Marcus A. Horn 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 Marcus A. Horn 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: 123 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Marcus A. Horn 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 Marcus A. Horn 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: 45 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

Overview

Marcus A. Horn is affiliated with the University of Hannover in Germany. Their research primarily focuses on environmental science, with a strong emphasis on several interconnected subfields including ecology, pollution, molecular biology, environmental chemistry, and soil science.

They have contributed significantly to topics such as microbial community ecology and physiology, microplastics and plastic pollution, wastewater treatment and nitrogen removal, soil carbon and nitrogen dynamics, biodegradable polymer synthesis and properties, methane hydrates and related phenomena, and microbial metabolism and enzyme function.

Recent publications by Marcus A. Horn include the following papers:

  • "Methanotrophs: Discoveries, Environmental Relevance, and a Perspective on Current and Future Applications," 2021, Frontiers in Microbiology
  • "Microplastics accumulate fungal pathogens in terrestrial ecosystems," 2021, Scientific Reports
  • "Interactive regulation of root exudation and rhizosphere denitrification by plant metabolite content and soil properties," 2021, Plant and Soil
  • "Burkholderiaceae Are Key Acetate Assimilators During Complete Denitrification in Acidic Cryoturbated Peat Circles of the Arctic Tundra," 2021, Frontiers in Microbiology
  • "Differences in labile soil organic matter explain potential denitrification and denitrifying communities in a long-term fertilization experiment," 2020, Applied Soil Ecology

Marcus A. Horn's frequent co-authors include Adrian Ho, Stephan Rohrbach, Linda Hink, Gerasimos Gkoutselis, and Gerhard Rambold. These collaborations reflect a network of research working largely in related environmental and microbiological fields.

The scientist's work is often published in select venues with multiple publications in:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Soil Biology and Biochemistry
  • FEMS Microbiology Ecology
  • Biology and Fertility of Soils
  • SSRN Electronic Journal

Best Publications

  • As the worm turns: the earthworm gut as a transient habitat for soil microbial biomes.

    Harold L. Drake;Marcus A. Horn

  • The role of nitrifier denitrification in the production of nitrous oxide revisited

    Nicole Wrage-Mönnig;Marcus A. Horn;Reinhard Well;Christoph Müller;Christoph Müller

  • Hydrogenotrophic methanogenesis by moderately acid-tolerant methanogens of a methane-emitting acidic peat.

    Marcus A. Horn;Carola Matthies;Kirsten Küsel;Andreas Schramm

  • The Earthworm Gut: an Ideal Habitat for Ingested N2O-Producing Microorganisms

    Marcus A. Horn;Andreas Schramm;Harold L. Drake

  • Dechloromonas denitrificans sp. nov., Flavobacterium denitrificans sp. nov., Paenibacillus anaericanus sp. nov. and Paenibacillus terrae strain MH72, N2O-producing bacteria isolated from the gut of the earthworm Aporrectodea caliginosa.

    Marcus A. Horn;Julian Ihssen;Carola Matthies;Andreas Schramm

  • Methanotrophs: Discoveries, Environmental Relevance, and a Perspective on Current and Future Applications

    Simon Guerrero-Cruz;Annika Vaksmaa;Marcus A. Horn;Helge Niemann

  • Contrasting denitrifier communities relate to contrasting N2O emission patterns from acidic peat soils in arctic tundra.

    Katharina Palmer;Christina Biasi;Marcus A Horn

  • Microplastics accumulate fungal pathogens in terrestrial ecosystems

    Gerasimos Gkoutselis;Stephan Rohrbach;Janno Harjes;Martin Obst

  • Clostridiaceae and Enterobacteriaceae as active fermenters in earthworm gut content.

    Pia K Wüst;Marcus A Horn;Harold L Drake

  • Is the Hyporheic Zone Relevant beyond the Scientific Community

    Jörg Lewandowski;Jörg Lewandowski;Shai Arnon;Eddie Banks;Okke Batelaan

  • Nitrous oxide reductase genes (nosZ) of denitrifying microbial populations in soil and the earthworm gut are phylogenetically similar.

    Marcus A. Horn;Harold L. Drake;Andreas Schramm

  • N2O-Producing microorganisms in the gut of the earthworm Aporrectodea caliginosa are indicative of ingested soil bacteria

    Julian Ihssen;Marcus A. Horn;Carola Matthies;Anita Gössner

  • Intermediary ecosystem metabolism as a main driver of methanogenesis in acidic wetland soil

    Harold L. Drake;Marcus A. Horn;Pia K. Wüst

  • Trophic links between fermenters and methanogens in a moderately acidic fen soil.

    Pia K. Wüst;Marcus A. Horn;Harold L. Drake

  • Soil HONO emissions at high moisture content are driven by microbial nitrate reduction to nitrite: tackling the HONO puzzle.

    Dianming Wu;Dianming Wu;Dianming Wu;Marcus A Horn;Marcus A Horn;Thomas Behrendt;Stefan Müller

  • Actinobacterial nitrate reducers and Proteobacterial denitrifiers are abundant in N2O metabolizing palsa peat

    Katharina Palmer;Marcus A. Horn

  • Denitrification in soil aggregate analogues-effect of aggregate size and oxygen diffusion

    Steffen Schlüter;Sina Henjes;Jan Zawallich;Linda Liberg Bergaust

  • Earthworms as a Transient Heaven for Terrestrial Denitrifying Microbes: a Review

    Harold L. Drake;Marcus A. Horn

  • Peat: home to novel syntrophic species that feed acetate- and hydrogen-scavenging methanogens

    Oliver G. Schmidt;Linda Hink;Marcus A. Horn;Harold L. Drake

  • In vivo emission of dinitrogen by earthworms via denitrifying bacteria in the gut.

    Marcus A. Horn;Ralph Mertel;Matthias Gehre;Matthias Kästner

  • Anaerobic Consumers of Monosaccharides in a Moderately Acidic Fen

    Alexandra Hamberger;Marcus A. Horn;Marc G. Dumont;J. Collin Murrell

  • Interactive regulation of root exudation and rhizosphere denitrification by plant metabolite content and soil properties

    Daniel Maurer;François Malique;Salah Alfarraj;Gada Albasher

  • In Situ Hydrogen and Nitrous Oxide as Indicators of Concomitant Fermentation and Denitrification in the Alimentary Canal of the Earthworm Lumbricus terrestris

    Pia K. Wüst;Marcus A. Horn;Harold L. Drake

  • Microbial CH4 and N2O Consumption in Acidic Wetlands

    Steffen Kolb;Marcus A. Horn

  • Earthworm gut microbial biomes: their importance to soil microorganisms, denitrification, and the terrestrial production of the greenhouse gas N2O

    Harold L. Drake;Andreas Schramm;Marcus A. Horn

  • The earthworm Aporrectodea caliginosa stimulates abundance and activity of phenoxyalkanoic acid herbicide degraders.

    Ya-Jun Liu;Adrienne Zaprasis;Shuang-Jiang Liu;Harold L Drake

  • Temperature impacts differentially on the methanogenic food web of cellulose-supplemented peatland soil.

    Oliver Schmidt;Marcus A. Horn;Steffen Kolb;Harold L. Drake

  • Alphaproteobacteria dominate active 2-methyl-4-chlorophenoxyacetic acid herbicide degraders in agricultural soil and drilosphere

    Ya-Jun Liu;Ya-Jun Liu;Shuang-Jiang Liu;Harold L. Drake;Marcus A. Horn

Frequent Co-Authors

Harold L. Drake
Harold L. Drake University of Bayreuth
Christoph Müller
Christoph Müller Potsdam Institute for Climate Impact Research
Reinhard Well
Reinhard Well University of Göttingen
Klaus Butterbach-Bahl
Klaus Butterbach-Bahl Karlsruhe Institute of Technology
Tim J. Clough
Tim J. Clough Lincoln University
Zucong Cai
Zucong Cai Nanjing Normal University
Weixin Ding
Weixin Ding Chinese Academy of Sciences
Lutz Merbold
Lutz Merbold Agroscope
Segundo Urquiaga
Segundo Urquiaga Brazilian Agricultural Research Corporation
Scott X. Chang
Scott X. Chang University of Alberta

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Related Online Degrees & Career Pathways

For students interested in Environmental Sciences, exploring related online degrees can open diverse career pathways. For instance, programs such as a dsw programs online offer a route into environmental social work, focusing on community well-being and sustainability advocacy.

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For those wondering about the workload, it’s helpful to research what is the easiest bachelor's degree to get, as some environmental science-related degrees can vary in difficulty depending on the specialization.

Lastly, combining environmental focus with earth sciences can lead to careers in geology or natural resource management. Online options like the online geoscience degree programs provide flexible study opportunities for students interested in Earth's physical processes.

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