World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
36
Citations
11444
World Ranking
9018
National Ranking
3227

Siyan Ma 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 Siyan Ma 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: 54 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

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

Siyan Ma 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 Siyan Ma 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: 36 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

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

Overview

Siyan Ma is affiliated with the University of California, Berkeley in the United States. Their research primarily focuses on Environmental Science, encompassing subfields such as Global and Planetary Change, Analytical Chemistry, Ecology, Plant Science, and Atmospheric Science.

The scientist's work covers several main research topics, including Plant Water Relations and Carbon Dynamics, Spectroscopy and Chemometric Analyses, Remote Sensing in Agriculture, Plant responses to elevated CO2, Climate variability and models, Water Quality Monitoring and Analysis, and Tree-ring climate responses.

Frequent co-authors collaborating with Siyan Ma include Dennis Baldocchi, Joseph Verfaillie, Yiyang Zhang, Jianshe Li, and Ling Ma.

Publications by Siyan Ma and relevant collaborators appear often in these outlets:

  • Agricultural and Forest Meteorology
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • SSRN Electronic Journal
  • Journal of Geophysical Research Biogeosciences
  • Global Change Biology

Recent papers published by or involving Siyan Ma include:

  • "Outgoing Near-Infrared Radiation From Vegetation Scales With Canopy Photosynthesis Across a Spectrum of Function, Structure, Physiological Capacity, and Weather," 2020, Journal of Geophysical Research Biogeosciences
  • "On the inter- and intra-annual variability of ecosystem evapotranspiration and water use efficiency of an oak savanna and annual grassland subjected to booms and busts in rainfall," 2020, Global Change Biology
  • "Transpiration and evaporation in a Californian oak-grass savanna: Field measurements and partitioning model results," 2020, Agricultural and Forest Meteorology
  • "A coupled ground heat flux-surface energy balance model of evaporation using thermal remote sensing observations," 2022, Biogeosciences
  • "Study on CAT activity of tomato leaf cells under salt stress based on microhyperspectral imaging and transfer learning algorithm," 2023, Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy

Best Publications

  • TRY - a global database of plant traits

    J. Kattge;S. Díaz;S. Lavorel;I. C. Prentice

  • TRY plant trait database : Enhanced coverage and open access

    Jens Kattge;Gerhard Bönisch;Sandra Díaz;Sandra Lavorel

  • The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data

    Gilberto Pastorello;Carlo Trotta;Eleonora Canfora;Housen Chu

  • Inter-annual variability in carbon dioxide exchange of an oak/grass savanna and open grassland in California

    Siyan Ma;Dennis D. Baldocchi;Liukang Xu;Ted Hehn

  • Estimation of Net Ecosystem Carbon Exchange for the Conterminous United States by Combining MODIS and AmeriFlux Data

    Jingfeng Xiao;Qianlai Zhuang;Dennis D. Baldocchi;Beverly E. Law

  • A model‐data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program site synthesis

    Christopher R. Schwalm;Christopher A. Williams;Kevin Schaefer;Ryan S. Anderson

  • A continuous measure of gross primary production for the conterminous United States derived from MODIS and AmeriFlux data

    Jingfeng Xiao;Qianlai Zhuang;Beverly E. Law;Jiquan Chen

  • Spatial variability in microclimate in a mixed-conifer forest before and after thinning and burning treatments

    Siyan Ma;Amy Concilio;Brian B. Oakley;Malcolm North

  • Interannual variability of evapotranspiration and energy exchange over an annual grassland in California

    Youngryel Ryu;Dennis D. Baldocchi;Siyan Ma;Ted Hehn

  • Assessing net ecosystem carbon exchange of U.S. terrestrial ecosystems by integrating eddy covariance flux measurements and satellite observations

    Jingfeng Xiao;Qianlai Zhuang;Beverly E. Law;Dennis D. Baldocchi

  • Groundwater uptake by woody vegetation in a semiarid oak savanna

    Gretchen R. Miller;Gretchen R. Miller;Xingyuan Chen;Yoram Rubin;Siyan Ma

  • Continuous observation of tree leaf area index at ecosystem scale using upward-pointing digital cameras

    Youngryel Ryu;Youngryel Ryu;Joseph Verfaillie;Craig Macfarlane;Hideki Kobayashi;Hideki Kobayashi

  • Using data from Landsat, MODIS, VIIRS and PhenoCams to monitor the phenology of California oak/grass savanna and open grassland across spatial scales

    Yan Liu;Michael J. Hill;Xiaoyang Zhang;Zhuosen Wang;Zhuosen Wang

  • On the differential advantages of evergreenness and deciduousness in mediterranean oak woodlands: a flux perspective

    Dennis D. Baldocchi;Siyan Ma;Serge Rambal;Laurent Misson

  • How will land use affect air temperature in the surface boundary layer? Lessons learned from a comparative study on the energy balance of an oak savanna and annual grassland in California, USA

    Dennis Baldocchi;Siyan Ma

  • Modeling energy and carbon fluxes in a heterogeneous oak woodland: A three-dimensional approach

    Hideki Kobayashi;Hideki Kobayashi;Dennis D. Baldocchi;Youngryel Ryu;Qi Chen

  • Vegetation and ecological characteristics of mixed-conifer and red fir forests at the Teakettle Experimental Forest

    Malcolm North;Brian Oakley;Jiquan Chen;Heather Erickson

  • Outgoing Near-Infrared Radiation From Vegetation Scales With Canopy Photosynthesis Across a Spectrum of Function, Structure, Physiological Capacity, and Weather

    Dennis D. Baldocchi;Youngryel Ryu;Benjamin Dechant;Elke Eichelmann

  • Testing the performance of a novel spectral reflectance sensor, built with light emitting diodes (LEDs), to monitor ecosystem metabolism, structure and function

    Youngryel Ryu;Dennis D. Baldocchi;Joseph Verfaillie;Siyan Ma

  • Plant-soil interactions and acclimation to temperature of microbial-mediated soil respiration may affect predictions of soil CO2 efflux

    J. Curiel Yuste;J. Curiel Yuste;S. Ma;D. D. Baldocchi

  • Short-Term Effects of Experimental Burning and Thinning on Soil Respiration in an Old-Growth, Mixed-Conifer Forest

    Siyan Ma;Jiquan Chen;Malcolm North;Heather E. Erickson

Frequent Co-Authors

Dennis D. Baldocchi
Dennis D. Baldocchi University of California, Berkeley
Jiquan Chen
Jiquan Chen Michigan State University
Walter C. Oechel
Walter C. Oechel San Diego State University
Youngryel Ryu
Youngryel Ryu Seoul National University
Hans Peter Schmid
Hans Peter Schmid Karlsruhe Institute of Technology
Malcolm P. North
Malcolm P. North US Forest Service
Sean P. Burns
Sean P. Burns University of Colorado Boulder
Marc L. Fischer
Marc L. Fischer Lawrence Berkeley National Laboratory
Hideki Kobayashi
Hideki Kobayashi Japan Agency for Marine-Earth Science and Technology
Russell K. Monson
Russell K. Monson University of Colorado Boulder

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Related Online Degrees & Career Pathways

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Specializing further, students passionate about Earth sciences can explore a geology online degree. This path deepens understanding of the Earth's physical structure and processes, critical for careers in environmental consulting, conservation, and resource management.

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