World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 54 1683 1541 36 34 177 11550

Ansgar Kahmen publications per year

The chart shows the history of publications by Ansgar Kahmen between 2001 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ansgar Kahmen published across 26 years, from 2001 to 2026, averaging 9.8 papers a year. Output peaked at 33 publications in 2025. 36 of the 256 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2001 to 2026. Vertical axis: number of publications, 0 to 33. Peak 33 publications in 2025. 2001: 1 publication 2002: 0 publications 2003: 1 publication 2004: 2 publications 2005: 5 publications 2006: 4 publications 2007: 5 publications 2008: 5 publications 2009: 5 publications 2010: 2 publications 2011: 3 publications 2012: 5 publications 2013: 6 publications 2014: 6 publications 2015: 14 publications 2016: 6 publications 2017: 18 publications 2018: 13 publications 2019: 16 publications 2020: 17 publications 2021: 24 publications 2022: 13 publications 2023: 25 publications 2024: 24 publications 2025: 33 publications 2026: 3 publications
2001 2026

256 publications in total across all disciplines

View publications per year as a table
Ansgar Kahmen: publications per year, 2001 to 2026
Year Publications
2001 1
2002 0
2003 1
2004 2
2005 5
2006 4
2007 5
2008 5
2009 5
2010 2
2011 3
2012 5
2013 6
2014 6
2015 14
2016 6
2017 18
2018 13
2019 16
2020 17
2021 24
2022 13
2023 25
2024 24
2025 33
2026 3
Total 256
Download as CSV

Ansgar Kahmen 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 Ansgar Kahmen sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 176–180 publications, is where this scientist sits. 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
36–40 publications 467+

This scientist: 177 publications — 70th percentile

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

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

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126 177
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
Download as CSV

Ansgar Kahmen 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 Ansgar Kahmen sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 54 D-Index, is where this scientist sits. 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: 54 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98 54
55 79
56 85
57 88
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
Download as CSV

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Ecosystem
  • Botany

His primary scientific interests are in Ecosystem, Ecology, Botany, Biodiversity and Terrestrial plant. Ansgar Kahmen has researched Ecosystem in several fields, including Biogeochemical cycle, Atmospheric sciences, Agronomy and Wax. While the research belongs to areas of Agronomy, Ansgar Kahmen spends his time largely on the problem of Nitrogen cycle, intersecting his research to questions surrounding Isotopes of nitrogen, Cycling and Nutrient.

He combines topics linked to Isotopic composition with his work on Ecology. His studies in Botany integrate themes in fields like Soil classification and δ18O. Ansgar Kahmen interconnects Ecological niche and Grassland in the investigation of issues within Biodiversity.

His most cited work include:

  • Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability (572 citations)
  • Molecular Paleohydrology: Interpreting the Hydrogen-Isotopic Composition of Lipid Biomarkers from Photosynthesizing Organisms (531 citations)
  • Resource Heterogeneity Moderates the Biodiversity-Function Relationship in Real World Ecosystems (190 citations)

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

Ansgar Kahmen mostly deals with Agronomy, Ecology, Botany, Ecosystem and Growing season. His work deals with themes such as Stomatal conductance, Nutrient, Temperate climate and Water content, which intersect with Agronomy. Biodiversity, Climate change, Biomass, Grassland and Plant community are subfields of Ecology in which his conducts study.

His Biomass research is multidisciplinary, relying on both Species richness and Species diversity. His work carried out in the field of Ecosystem brings together such families of science as Soil water, Atmospheric sciences and Wax. His Atmospheric sciences course of study focuses on Hydrology and Ecohydrology, Transect and Arid.

He most often published in these fields:

  • Agronomy (27.56%)
  • Ecology (21.26%)
  • Botany (22.83%)

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

  • Agronomy (27.56%)
  • Growing season (13.39%)
  • Water content (7.09%)

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

His primary areas of investigation include Agronomy, Growing season, Water content, Temperate climate and Drought stress. His studies deal with areas such as Soil water, Soil horizon and Stomatal conductance as well as Agronomy. He combines subjects such as Temperate rainforest, Climate change, Phenology, Alpine plant and Snowmelt with his study of Growing season.

His work in the fields of Temperate forest overlaps with other areas such as Economic shortage and Embolism. His study explores the link between Topsoil and topics such as Old-growth forest that cross with problems in Ecosystem. Ansgar Kahmen usually deals with Ecosystem and limits it to topics linked to Habitat and Competition.

Between 2018 and 2021, his most popular works were:

  • A first assessment of the impact of the extreme 2018 summer drought on Central European forests (72 citations)
  • Species-specific differences in water uptake depth of mature temperate trees vary with water availability in the soil. (30 citations)
  • No role for xylem embolism or carbohydrate shortage in temperate trees during the severe 2015 drought (20 citations)

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

  • Ecology
  • Ecosystem
  • Botany

His scientific interests lie mostly in Agronomy, Soil water, Temperate climate, Water content and Carbohydrate. His research integrates issues of Sink and Stomatal conductance in his study of Agronomy. His study in Carbohydrate is interdisciplinary in nature, drawing from both Environmental chemistry and Botany.

His primary area of study in Botany is in the field of Xylem. The study incorporates disciplines such as Old-growth forest, Fagus sylvatica, Soil classification, Scots pine and Ecosystem in addition to Topsoil. His Drought stress research incorporates themes from Ecology, Climate change, Growing season and Temperate rainforest.

Best Publications

  • Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability

    Joseph M. Craine;Andrew J. Elmore;Marcos P. M. Aidar;Mercedes Bustamante

  • Mechanisms of woody-plant mortality under rising drought, CO2 and vapour pressure deficit

    Unknown

  • Stable isotopes in leaf water of terrestrial plants.

    Lucas A. Cernusak;Margaret M. Barbour;Stefan K. Arndt;Alexander W. Cheesman

  • Resource Heterogeneity Moderates the Biodiversity-Function Relationship in Real World Ecosystems

    Jason M Tylianakis;Jason M Tylianakis;Tatyana A Rand;Tatyana A Rand;Ansgar Kahmen;Alexandra-Maria Klein;Alexandra-Maria Klein

  • NICHE COMPLEMENTARITY FOR NITROGEN: AN EXPLANATION FOR THE BIODIVERSITY AND ECOSYSTEM FUNCTIONING RELATIONSHIP?

    Ansgar Kahmen;Carsten Renker;Sybille B. Unsicker;Nina Buchmann

  • Diversity-dependent productivity in semi-natural grasslands following climate perturbations

    A. Kahmen;J. Perner;N. Buchmann

  • Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants I: Experimental evidence and mechanistic insights

    Ansgar Kahmen;Enno Schefuß;Dirk Sachse

  • Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants II: Observational evidence and global implications

    Ansgar Kahmen;Ansgar Kahmen;Bernd Hoffmann;Enno Schefuß;Stefan K. Arndt

  • Foliar δ15N values characterize soil N cycling and reflect nitrate or ammonium preference of plants along a temperate grassland gradient

    Ansgar Kahmen;Wolfgang Wanek;Nina Buchmann

  • Species-specific differences in water uptake depth of mature temperate trees vary with water availability in the soil.

    Nadine Brinkmann;Nadine Brinkmann;Werner Eugster;Nina Buchmann;Ansgar Kahmen

  • Employing stable isotopes to determine the residence times of soil water and the temporal origin of water taken up by Fagus sylvatica and Picea abies in a temperate forest

    Nadine Brinkmann;Nadine Brinkmann;Stefan Seeger;Markus Weiler;Nina Buchmann

  • Cellulose δ18O is an index of leaf-to-air vapor pressure difference (VPD) in tropical plants

    Ansgar Kahmen;Dirk Sachse;Stefan K. Arndt;Kevin P. Tu

  • Convergence of soil nitrogen isotopes across global climate gradients

    Joseph M. Craine;Andrew J. Elmore;Lixin Wang;Laurent Augusto

  • Number of growth days and not length of the growth period determines radial stem growth of temperate trees

    Unknown

  • Significant seasonal variation in the hydrogen isotopic composition of leaf-wax lipids for two deciduous tree ecosystems (Fagus sylvativa and Acer pseudoplatanus)

    Dirk Sachse;Ansgar Kahmen;Gerd Gleixner

  • Rapid hydraulic collapse as cause of drought-induced mortality in conifers.

    Matthias Arend;Roman M. Link;Rachel Patthey;Günter Hoch

  • Effects of plant diversity, community composition and environmental parameters on productivity in montane European grasslands.

    Ansgar Kahmen;Jörg Perner;Volker Audorff;Wolfgang W. Weisser

  • Effects of plant diversity, plant productivity and habitat parameters on arthropod abundance in montane European grasslands

    Jörg Perner;Carla Wytrykush;Ansgar Kahmen;Nina Buchmann

  • Abundance and distribution of leaf wax n-alkanes in leaves of Acacia and Eucalyptus trees along a strong humidity gradient in northern Australia

    Bernd Hoffmann;Ansgar Kahmen;Lucas A. Cernusak;Stefan K. Arndt

  • Leaf wax n-alkane δD values of field-grown barley reflect leaf water δD values at the time of leaf formation

    Dirk Sachse;Gerd Gleixner;Heinz Wilkes;Ansgar Kahmen;Ansgar Kahmen

  • Species composition of arbuscular mycorrhizal fungi in two mountain meadows with differing management types and levels of plant biodiversity

    Boris Börstler;Carsten Renker;Ansgar Kahmen;François Buscot

  • Effects of environmental parameters, leaf physiological properties and leaf water relations on leaf water δ18O enrichment in different Eucalyptus species

    Ansgar Kahmen;Kevin Simonin;Kevin P. Tu;Andrew Merchant

Frequent Co-Authors

Dirk Sachse
Dirk Sachse University of Potsdam
Nina Buchmann
Nina Buchmann ETH Zurich
Stefan K. Arndt
Stefan K. Arndt University of Melbourne
Günter Hoch
Günter Hoch University of Basel
Todd E. Dawson
Todd E. Dawson University of California, Berkeley
Arthur Gessler
Arthur Gessler ETH Zurich
Thomas Boller
Thomas Boller University of Basel
Rolf T. W. Siegwolf
Rolf T. W. Siegwolf Paul Scherrer Institute
Lucas A. Cernusak
Lucas A. Cernusak James Cook University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Ansgar Kahmen

Trending Scientists

Recently Published Articles