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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 84 363 338 123 113 221 21755

William K. Smith publications per year

The chart shows the history of publications by William K. Smith between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. William K. Smith published across 61 years, from 1965 to 2025, averaging 4.3 papers a year. Output peaked at 20 publications in 2019. 7 of the 265 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2019. 1965: 2 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 1 publication 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 2 publications 1974: 1 publication 1975: 2 publications 1976: 0 publications 1977: 2 publications 1978: 2 publications 1979: 2 publications 1980: 3 publications 1981: 4 publications 1982: 3 publications 1983: 2 publications 1984: 2 publications 1985: 2 publications 1986: 3 publications 1987: 4 publications 1988: 6 publications 1989: 7 publications 1990: 6 publications 1991: 7 publications 1992: 0 publications 1993: 1 publication 1994: 6 publications 1995: 4 publications 1996: 2 publications 1997: 2 publications 1998: 2 publications 1999: 3 publications 2000: 3 publications 2001: 5 publications 2002: 4 publications 2003: 2 publications 2004: 4 publications 2005: 6 publications 2006: 6 publications 2007: 7 publications 2008: 5 publications 2009: 4 publications 2010: 9 publications 2011: 1 publication 2012: 5 publications 2013: 8 publications 2014: 10 publications 2015: 7 publications 2016: 7 publications 2017: 13 publications 2018: 16 publications 2019: 20 publications 2020: 20 publications 2021: 10 publications 2022: 1 publication 2023: 1 publication 2024: 5 publications 2025: 2 publications
1965 2025

265 publications in total across all disciplines

View publications per year as a table
William K. Smith: publications per year, 1965 to 2025
Year Publications
1965 2
1966 0
1967 0
1968 0
1969 1
1970 1
1971 0
1972 0
1973 2
1974 1
1975 2
1976 0
1977 2
1978 2
1979 2
1980 3
1981 4
1982 3
1983 2
1984 2
1985 2
1986 3
1987 4
1988 6
1989 7
1990 6
1991 7
1992 0
1993 1
1994 6
1995 4
1996 2
1997 2
1998 2
1999 3
2000 3
2001 5
2002 4
2003 2
2004 4
2005 6
2006 6
2007 7
2008 5
2009 4
2010 9
2011 1
2012 5
2013 8
2014 10
2015 7
2016 7
2017 13
2018 16
2019 20
2020 20
2021 10
2022 1
2023 1
2024 5
2025 2
Total 265
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William K. Smith 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 William K. Smith 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, 221–225 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: 221 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.

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
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 61 221
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
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William K. Smith 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 William K. Smith 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, 84 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: 84 D-Index — 95th percentile

95% 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
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 84
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
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Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Photosynthesis

His primary scientific interests are in Botany, Photosynthesis, Abies lasiocarpa, Ecotone and Picea engelmannii. His research brings together the fields of Agronomy and Botany. His Photosynthesis research is multidisciplinary, relying on both Palisade cell and Horticulture.

His Ecotone study combines topics in areas such as Microsite and Seedling. He usually deals with Picea engelmannii and limits it to topics linked to Germination and Field experiment and Abies mariesii. His Ecology research is multidisciplinary, incorporating elements of Snow and Water content.

His most cited work include:

  • Conifer seedling distribution and survival in an alpine-treeline ecotone (290 citations)
  • Leaf Form and Photosynthesis (280 citations)
  • Relation between Mesophyll Surface Area, Photosynthetic Rate, and Illumination Level during Development for Leaves of Plectranthus parviflorus Henckel (271 citations)

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

William K. Smith mostly deals with Botany, Photosynthesis, Horticulture, Ecology and Transpiration. In his research, William K. Smith performs multidisciplinary study on Botany and Sunlight. His study in Photosynthesis is interdisciplinary in nature, drawing from both Chlorophyll, Palisade cell and Agronomy.

His Leaf size study in the realm of Horticulture connects with subjects such as Shading. In his research, Altitude, Abundance and Plant ecology is intimately related to Seedling, which falls under the overarching field of Ecology. His study explores the link between Transpiration and topics such as Stomatal conductance that cross with problems in Xylem, Vapour Pressure Deficit and Herbaceous plant.

He most often published in these fields:

  • Botany (70.95%)
  • Photosynthesis (50.68%)
  • Horticulture (27.03%)

What were the highlights of his more recent work (between 2013-2021)?

  • Botany (70.95%)
  • Wetland (4.73%)
  • Photosynthesis (50.68%)

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

William K. Smith spends much of his time researching Botany, Wetland, Photosynthesis, Hydrology and Transpiration. His research in Botany is mostly concerned with Ecophysiology. His work deals with themes such as Atmospheric sciences and Bouteloua gracilis, which intersect with Photosynthesis.

The Hydrology study combines topics in areas such as Methane, Vegetation and Greenhouse gas. His research integrates issues of Microclimate, Growing season and Ecosystem in his study of Transpiration. His work carried out in the field of Microclimate brings together such families of science as Photosynthetically active radiation, Evapotranspiration, Animal science and Abies lasiocarpa.

Between 2013 and 2021, his most popular works were:

  • The role of vegetation in methane flux to the atmosphere: should vegetation be included as a distinct category in the global methane budget? (80 citations)
  • Photosynthetic costs and benefits of abaxial versus adaxial anthocyanins in Colocasia esculenta 'Mojito'. (31 citations)
  • Experimental cloud immersion and foliar water uptake in saplings of Abies fraseri and Picea rubens (30 citations)

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

  • Ecology
  • Botany
  • Ecosystem

William K. Smith mainly focuses on Botany, Wetland, Greenhouse gas, Methane and Vegetation. His Botany study integrates concerns from other disciplines, such as National park and Tundra. His research in Wetland intersects with topics in Atmosphere, Carbon dioxide and Carbon cycle.

William K. Smith has included themes like Biogeochemical cycle and Biogeochemistry in his Greenhouse gas study. The study of Biogeochemical cycle is intertwined with the study of Atmospheric sciences in a number of ways.

Best Publications

  • Increased atmospheric vapor pressure deficit reduces global vegetation growth

    Wenping Yuan;Yi Zheng;Shilong Piao;Philippe Ciais

  • Recent global decline of CO2 fertilization effects on vegetation photosynthesis

    Songhan Wang;Songhan Wang;Yongguang Zhang;Yongguang Zhang;Yongguang Zhang;Weimin Ju;Weimin Ju;Jing M. Chen;Jing M. Chen

  • Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO2

    Anthony P. Walker;Martin G. De Kauwe;Ana Bastos;Soumaya Belmecheri

  • Observed increasing water constraint on vegetation growth over the last three decades.

    Wenzhe Jiao;Lixin Wang;William K. Smith;Qing Chang

  • Estimating near-infrared leaf reflectance from leaf structural characteristics

    Michèle R. Slaton;E. Raymond Hunt;William K. Smith

  • Leaf Form and Photosynthesis

    William K. Smith;Thomas C. Vogelmann;Evan H. DeLucia;David T. Bell

  • Conifer seedling distribution and survival in an alpine-treeline ecotone

    Matthew J. Germino;William K. Smith;A. Catherine Resor

  • Increasing impact of warm droughts on northern ecosystem productivity over recent decades

    David Gampe;David Gampe;Jakob Zscheischler;Jakob Zscheischler;Jakob Zscheischler;Markus Reichstein;Michael O’Sullivan

  • COMPARATIVE WATER RELATIONS AND PHOTOSYNTHESIS OF MYCORRHIZAL AND NON-MYCORRHIZAL BOUTELOUA GRACILIS H.B.K. LAG EX STEUD.

    Michael F. Allen;William K. Smith;Thomas S. Jr Moore;Martha Christensen

  • Relation between Mesophyll Surface Area, Photosynthetic Rate, and Illumination Level during Development for Leaves of Plectranthus parviflorus Henckel

    Park S. Nobel;Lawrence J. Zaragoza;William K. Smith

  • Widespread seasonal compensation effects of spring warming on northern plant productivity

    Wolfgang Buermann;Wolfgang Buermann;Matthias Forkel;Michael O’Sullivan;Stephen Sitch

  • Another perspective on altitudinal limits of alpine timberlines

    William K. Smith;Matthew J. Germino;Thomas E. Hancock;Daniel M. Johnson

  • Remote sensing of dryland ecosystem structure and function: Progress, challenges, and opportunities

    William K. Smith;Matthew P. Dannenberg;Matthew P. Dannenberg;Dong Yan;Stephanie Herrmann

  • Functional interaction between leaf trichomes, leaf wettability and the optical properties of water droplets

    C. A. Brewer;W. K. Smith;T. C. Vogelmann

  • Leaves and light capture: Light propagation and gradients of carbon fixation within leaves

    Thomas C. Vogelman;John N. Nishio;William K. Smith

  • Wind Effects on Needles of Timberline Conifers: Seasonal Influence on Mortality

    Julian L. Hadley;William K. Smith

  • Chlorophyll and light gradients in sun and shade leaves of Spinacia oleracea

    M. Cui;T. C. Vogelmann;W. K. Smith

  • Sky exposure, crown architecture, and low‐temperature photoinhibition in conifer seedlings at alpine treeline

    M. J. Germino;W. K. Smith;W. K. Smith

  • The altitude of alpine treeline: a bellwether of climate change effects

    William K. Smith;Matthew J. Germino;Daniel M. Johnson;Keith Reinhardt

  • Increasing importance of precipitation variability on global livestock grazing lands

    Lindsey L. Sloat;James S. Gerber;Leah H. Samberg;William K. Smith;William K. Smith

  • SAP FLUX OF CO-OCCURRING SPECIES IN A WESTERN SUBALPINE FOREST DURING SEASONAL SOIL DROUGHT

    Diane E. Pataki;Ram Oren;William K. Smith

  • Patterns of leaf surface wetness for montane and subalpine plants

    C. A. Brewer;W. K. Smith

  • Relation between Mesophyll Surface Area, Photosynthetic Rate, and Illumination Level during Development for Leaves of

    Park S. Nobel;Lawrence J. Zaragoza;William K. Smith

Frequent Co-Authors

Daniel M. Johnson
Daniel M. Johnson University of Georgia
Alan K. Knapp
Alan K. Knapp Colorado State University
Donald R. Young
Donald R. Young Virginia Commonwealth University
Evan H. DeLucia
Evan H. DeLucia University of Illinois at Urbana-Champaign
E. Raymond Hunt
E. Raymond Hunt Agricultural Research Service
William A. Reiners
William A. Reiners University of Wyoming
Matthew J. Germino
Matthew J. Germino United States Geological Survey
Craig R. Brodersen
Craig R. Brodersen Yale University
Martha Christensen
Martha Christensen University of Wyoming
Park S. Nobel
Park S. Nobel University of California, Los Angeles

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