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Plant Science and Agronomy
USA
2026

D-Index & Metrics

Plant Science and Agronomy

D-Index
110
Citations
37441
World Ranking
95
National Ranking
32

Ram Oren 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 Ram Oren sits on this spectrum.

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 publications 467+

This scientist: 280 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

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

Ram Oren 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 Ram Oren sits on this spectrum.

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: 110 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in United States Leader Award
  • 2022 - Research.com Plant Science and Agronomy in United States Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Ecosystem

Ram Oren mainly focuses on Transpiration, Ecosystem, Ecology, Atmospheric sciences and Stomatal conductance. His Transpiration research includes elements of Hydrology, Water content, Soil water and Liquidambar styraciflua. His Ecosystem research incorporates elements of Biomass, Vegetation and Nitrogen cycle.

His study explores the link between Ecology and topics such as Carbon sequestration that cross with problems in Earth science, Carbon dioxide in Earth's atmosphere and Biogeochemistry. His Atmospheric sciences research is multidisciplinary, incorporating elements of Eddy covariance, Evapotranspiration and Climate model. His study looks at the intersection of Stomatal conductance and topics like Canopy with Deciduous.

His most cited work include:

  • Progressive Nitrogen Limitation of Ecosystem Responses to Rising Atmospheric Carbon Dioxide (956 citations)
  • Soil fertility limits carbon sequestration by forest ecosystems in a CO 2 -enriched atmosphere (890 citations)
  • Survey and synthesis of intra‐ and interspecific variation in stomatal sensitivity to vapour pressure deficit (803 citations)

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

Ram Oren spends much of his time researching Transpiration, Canopy, Atmospheric sciences, Botany and Agronomy. He combines subjects such as Hydrology, Evapotranspiration, Water content and Water-use efficiency with his study of Transpiration. His research investigates the connection between Canopy and topics such as Leaf area index that intersect with problems in Interception.

His study on Atmospheric sciences also encompasses disciplines like

  • Eddy covariance which is related to area like Latent heat,
  • Ecosystem which intersects with area such as Biomass and Nitrogen cycle. The various areas that Ram Oren examines in his Botany study include Carbon dioxide and Horticulture. His work deals with themes such as Ecology, Soil water and Primary production, which intersect with Agronomy.

He most often published in these fields:

  • Transpiration (36.78%)
  • Canopy (34.35%)
  • Atmospheric sciences (33.43%)

What were the highlights of his more recent work (between 2017-2021)?

  • Evapotranspiration (19.45%)
  • Atmospheric sciences (33.43%)
  • Agronomy (37.39%)

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

Ram Oren mostly deals with Evapotranspiration, Atmospheric sciences, Agronomy, Primary production and Transpiration. His biological study spans a wide range of topics, including Tree transpiration, Resource, Soil water, Water balance and Digging. In his study, which falls under the umbrella issue of Atmospheric sciences, Water content is strongly linked to Eddy covariance.

As a part of the same scientific family, Ram Oren mostly works in the field of Agronomy, focusing on Taiga and, on occasion, Karst, Nitrate leaching and Soil warming. He is studying Vapour Pressure Deficit, which is a component of Transpiration. Canopy is a subfield of Botany that Ram Oren studies.

Between 2017 and 2021, his most popular works were:

  • Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment (26 citations)
  • Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment (26 citations)
  • Boreal forest biomass accumulation is not increased by two decades of soil warming (14 citations)

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

  • Ecology
  • Ecosystem
  • Botany

Ram Oren focuses on Evapotranspiration, Agronomy, Photosynthesis, Taiga and Soil carbon. His research investigates the link between Evapotranspiration and topics such as Water balance that cross with problems in Leaf area index, Streamflow, Transpiration and Soil fertility. His study in Photosynthesis is interdisciplinary in nature, drawing from both Pinus , Scots pine and Horticulture.

His research in Taiga intersects with topics in Water use, Canopy, Growing season and Water cycle. His Soil carbon study incorporates themes from Secondary succession, Temperate climate, Biomass, Primary production and Atmospheric sciences. The subject of his Terrestrial ecosystem research is within the realm of Ecosystem.

Best Publications

  • Progressive Nitrogen Limitation of Ecosystem Responses to Rising Atmospheric Carbon Dioxide

    Yiqi Luo;Bo Su;William S. Currie;Jeffrey S. Dukes

  • Soil fertility limits carbon sequestration by forest ecosystems in a CO 2 -enriched atmosphere

    Ram Oren;David S Ellsworth;David S Ellsworth;Kurt H Johnsen;Nathan C. Phillips

  • Survey and synthesis of intra- and interspecific variation in stomatal sensitivity to vapour pressure deficit

    R. Oren;J. S. Sperry;G. G. Katul;D. E. Pataki

  • Forest response to elevated CO2 is conserved across a broad range of productivity.

    Richard J. Norby;Evan H. DeLucia;Birgit Gielen;Carlo Calfapietra

  • Water deficits and hydraulic limits to leaf water supply.

    J. S. Sperry;U. G. Hacke;R. Oren;J. P. Comstock

  • Differential responses to changes in growth temperature between trees from different functional groups and biomes: a review and synthesis of data

    Danielle A. Way;Ram Oren

  • Mechanisms of long-distance dispersal of seeds by wind

    Ran Nathan;Gabriel G. Katul;Henry S. Horn;Suvi M. Thomas

  • Observed increase in local cooling effect of deforestation at higher latitudes

    Xuhui Lee;Michael L. Goulden;David Y. Hollinger;Alan Barr

  • Evapotranspiration: A process driving mass transport and energy exchange in the soil‐plant‐atmosphere‐climate system

    Gabriel G. Katul;Gabriel G. Katul;Ram Oren;Ram Oren;Stefano Manzoni;Chad Higgins

  • Application of the pipe model theory to predict canopy leaf area.

    R. H. Waring;P. E. Schroeder;R. Oren

  • Increases in the flux of carbon belowground stimulate nitrogen uptake and sustain the long‐term enhancement of forest productivity under elevated CO2

    John E. Drake;Anne Gallet-Budynek;Anne Gallet-Budynek;Kirsten S. Hofmockel;Emily S. Bernhardt

  • Simple additive effects are rare: a quantitative review of plant biomass and soil process responses to combined manipulations of CO2 and temperature.

    Wouter I. J. Dieleman;Wouter I. J. Dieleman;Sara Vicca;Feike A. Dijkstra;Frank Hagedorn

  • Radial patterns of xylem sap flow in non‐, diffuse‐ and ring‐porous tree species

    N. Phillips;R. Oren;R. Zimmermann

  • Increases in nitrogen uptake rather than nitrogen-use efficiency support higher rates of temperate forest productivity under elevated CO2

    Adrien C. Finzi;Richard J. Norby;Carlo Calfapietra;Anne Gallet-Budynek

  • Evaluation of 11 terrestrial carbon–nitrogen cycle models against observations from two temperate Free‐Air CO2 Enrichment studies

    Soenke Zaehle;Belinda E. Medlyn;Martin G. De Kauwe;Anthony P. Walker

  • Canopy nitrogen, carbon assimilation, and albedo in temperate and boreal forests: Functional relations and potential climate feedbacks

    S. V. Ollinger;A. D. Richardson;M. E. Martin;D. Y. Hollinger

  • Forest water use and water use efficiency at elevated CO2: a model‐data intercomparison at two contrasting temperate forest FACE sites

    Martin G. De Kauwe;Belinda E. Medlyn;Soenke Zaehle;Anthony P. Walker

  • Influence of soil porosity on water use in Pinus taeda

    U G Hacke;John S Sperry;Brent E Ewers;D S Ellsworth

  • A stomatal optimization theory to describe the effects of atmospheric CO2 on leaf photosynthesis and transpiration

    Gabriel Katul;Stefano Manzoni;Sari Palmroth;Ram Oren

  • The effect of tree height on crown level stomatal conductance

    Karina Schäfer;Karina Schäfer;Ram Oren;John Tenhunen

  • Using ecosystem experiments to improve vegetation models

    Belinda E Medlyn;Belinda E Medlyn;Sonke Zaehle;Martin G De Kauwe;Anthony P Walker

  • Transpiration in response to variation in microclimate and soil moisture in southeastern deciduous forests.

    Ram Oren;Diane E. Pataki

Frequent Co-Authors

Gabriel G. Katul
Gabriel G. Katul Duke University
Heather R. McCarthy
Heather R. McCarthy University of Oklahoma
Sari Palmroth
Sari Palmroth Duke University
Paul C. Stoy
Paul C. Stoy University of Wisconsin–Madison
David S. Ellsworth
David S. Ellsworth Western Sydney University
Ernst-Detlef Schulze
Ernst-Detlef Schulze Max Planck Institute for Biogeochemistry
Mario B. S. Siqueira
Mario B. S. Siqueira Duke University
Jean-Christophe Domec
Jean-Christophe Domec Bordeaux Sciences Agro
Nathan Phillips
Nathan Phillips Boston University
Kimberly A. Novick
Kimberly A. Novick Indiana University

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