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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 85 2733 2460 62 57 390 21402

Heike Knicker publications per year

The chart shows the history of publications by Heike Knicker between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Heike Knicker published across 35 years, from 1991 to 2025, averaging 15.1 papers a year. Output peaked at 36 publications in 2013. 27 of the 528 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 36. Peak 36 publications in 2013. 1991: 2 publications 1992: 0 publications 1993: 1 publication 1994: 2 publications 1995: 3 publications 1996: 9 publications 1997: 8 publications 1998: 9 publications 1999: 4 publications 2000: 15 publications 2001: 6 publications 2002: 9 publications 2003: 18 publications 2004: 13 publications 2005: 18 publications 2006: 23 publications 2007: 16 publications 2008: 28 publications 2009: 27 publications 2010: 21 publications 2011: 24 publications 2012: 20 publications 2013: 36 publications 2014: 27 publications 2015: 24 publications 2016: 23 publications 2017: 22 publications 2018: 17 publications 2019: 20 publications 2020: 16 publications 2021: 19 publications 2022: 8 publications 2023: 13 publications 2024: 10 publications 2025: 17 publications
1991 2025

528 publications in total across all disciplines

View publications per year as a table
Heike Knicker: publications per year, 1991 to 2025
Year Publications
1991 2
1992 0
1993 1
1994 2
1995 3
1996 9
1997 8
1998 9
1999 4
2000 15
2001 6
2002 9
2003 18
2004 13
2005 18
2006 23
2007 16
2008 28
2009 27
2010 21
2011 24
2012 20
2013 36
2014 27
2015 24
2016 23
2017 22
2018 17
2019 20
2020 16
2021 19
2022 8
2023 13
2024 10
2025 17
Total 528
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Heike Knicker publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Heike Knicker sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 381–400 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 390 publications — 79th percentile

79% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459 390
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Heike Knicker D-index placement in Chemistry in 2026

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

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 84–85 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 85 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275 85
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Heike Knicker is affiliated with the Spanish National Research Council in Spain. Their research portfolio spans Agricultural and Biological Sciences and Environmental Science, with a particular focus on Soil Science, Industrial and Manufacturing Engineering, Pollution, Biomaterials, and Plant Science.

The scientist's work covers several core topics, including:

  • Soil Carbon and Nitrogen Dynamics
  • Clay minerals and soil interactions
  • Composting and Vermicomposting Techniques
  • Phosphorus and nutrient management
  • Heavy metals in environment
  • Fire effects on ecosystems
  • Municipal Solid Waste Management

Heike Knicker has contributed to a variety of journals with multiple publications in the following venues:

  • Agronomy
  • SSRN Electronic Journal
  • Journal of Soil Science and Plant Nutrition
  • Journal of Environmental Management
  • European Journal of Soil Science

The scientist has frequently collaborated with several coauthors, including:

  • José M. de la Rosa Arranz
  • Paloma Campos
  • Marco Panettieri
  • Marta Velasco-Molina
  • José Antonío González-Pérez

Among the recent papers contributed by Heike Knicker are:

  • Current Wildland Fire Patterns and Challenges in Europe: A Synthesis of National Perspectives, 2021, Air Soil and Water Research
  • Chemical, physical and morphological properties of biochars produced from agricultural residues: Implications for their use as soil amendment, 2020, Waste Management
  • Biochar amendment increases bacterial diversity and vegetation cover in trace element-polluted soils: A long-term field experiment, 2020, Soil Biology and Biochemistry
  • Recycling pyrolyzed organic waste from plant nurseries, rice production and shrimp industry as peat substitute in potting substrates, 2020, Journal of Environmental Management
  • High-pH and anoxic conditions during soil organic matter extraction increases its electron-exchange capacity and ability to stimulate microbial Fe(III) reduction by electron shuttling, 2020, Biogeosciences

Best Publications

  • The effect of fire on soil organic matter--a review.

    José A. González-Pérez;Francisco J. González-Vila;Gonzalo Almendros;Heike Knicker

  • How does fire affect the nature and stability of soil organic nitrogen and carbon? A review

    Heike Knicker

  • Improvement of 13C and 15N CPMAS NMR spectra of bulk soils, particle size fractions and organic material by treatment with 10% hydrofluoric acid

    M. W. I. Schmidt;Heike Knicker;Heike Knicker;Patrick G. Hatcher;I. Kögel-Knabner

  • Soil C and N stocks as affected by cropping systems and nitrogen fertilisation in a southern Brazil Acrisol managed under no-tillage for 17 years

    J. Diekow;J. Mielniczuk;Heike Knicker;C. Bayer

  • N-15 and C-13 CPMAS and solution NMR studies of N-15 enriched plant material during 600 days of microbial degradation

    Heike Knicker;H.-D. Lüdemann

  • Rearrangement of carbon and nitrogen forms in peat after progressive thermal oxidation as determined by solid-state 13C- and 15N-NMR spectroscopy

    Gonzalo Almendros;Heike Knicker;Francisco J. González-Vila

  • Fire-induced transformation of C- and N- forms in different organic soil fractions from a Dystric Cambisol under a Mediterranean pine forest (Pinus pinaster)

    Heike Knicker;Francisco J. González-Vila;Oliva Polvillo;José A. González

  • Characterization of Ferrihydrite-Soil Organic Matter Coprecipitates by X-ray Diffraction and Mossbauer Spectroscopy

    Karin Eusterhues;Friedrich E Wagner;Werner Häusler;Marianne Hanzlik

  • Carbon and nitrogen stocks in physical fractions of a subtropical Acrisol as influenced by long-term no-till cropping systems and N fertilisation

    Jeferson Diekow;João Mielniczuk;Heike Knicker;Cimélio Bayer

  • Soil organic N - An under-rated player for C sequestration in soils?

    Heike Knicker

  • Knowledge gaps in soil carbon and nitrogen interactions – From molecular to global scale

    Annemieke I. Gärdenäs;Göran I. Ågren;Jeffrey A. Bird;Marianne Clarholm

  • Fractionation of organic matter due to reaction with ferrihydrite: coprecipitation versus adsorption.

    Karin Eusterhues;Thilo Rennert;Heike Knicker;Ingrid Kögel-Knabner

  • Survival of Protein in an Organic-Rich Sediment: Possible Protection by Encapsulation in Organic Matter

    Heike Knicker;Patrick G. Hatcher

  • The effect of 10% HF treatment on the resolution of CPMAS 13C NMR spectra and on the quality of organic matter in Ferralsols

    Cristiano N Gonçalves;Ricardo S.D Dalmolin;Deborah P Dick;Heike Knicker

  • Pyrogenic organic matter in soil: Its origin and occurrence, its chemistry and survival in soil environments

    Heike Knicker

  • Mineralisation and structural changes during the initial phase of microbial degradation of pyrogenic plant residues in soil

    André Hilscher;Katja Heister;Christian Siewert;Heike Knicker

  • 13C- and 15N-NMR spectroscopic examination of the transformation of organic nitrogen in plant biomass during thermal treatment

    H. Knicker;G. Almendros;F.J. González-Vila;F. Martin

  • Stabilization of N-compounds in soil and organic-matter-rich sediments—what is the difference?

    Heike Knicker

  • Effects of aging under field conditions on biochar structure and composition: Implications for biochar stability in soils.

    José María de la Rosa;Mario Rosado;Marina Paneque;Ana Z. Miller

  • A new conceptual model for the structural properties of char produced during vegetation fires

    Heike Knicker;André Hilscher;Francisco J. González-Vila;Gonzalo Almendros

  • Characterization of humic acids from a Brazilian Oxisol under different tillage systems by EPR, 13C NMR, FTIR and fluorescence spectroscopy

    Martha González Pérez;Martha González Pérez;Ladislau Martin-Neto;Sérgio C Saab;Sérgio C Saab;Etelvino H Novotny;Etelvino H Novotny

Frequent Co-Authors

Ingrid Kögel-Knabner
Ingrid Kögel-Knabner Technical University of Munich
Cornelia Rumpel
Cornelia Rumpel Centre national de la recherche scientifique, CNRS
Patrick G. Hatcher
Patrick G. Hatcher Old Dominion University
Felipe Macías
Felipe Macías University of Santiago de Compostela
Michael W. I. Schmidt
Michael W. I. Schmidt University of Zurich
Cimélio Bayer
Cimélio Bayer Federal University of Rio Grande do Sul
Jan Jacob Keizer
Jan Jacob Keizer University of Aveiro
David A. C. Manning
David A. C. Manning Newcastle University
Cesáreo Sáiz-Jiménez
Cesáreo Sáiz-Jiménez Spanish National Research Council
João Mielniczuk
João Mielniczuk Federal University of Rio Grande do Sul

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