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Christian P. Giardina

Christian P. Giardina

US Forest Service
United States

D-Index & Metrics

Ecology and Evolution

D-Index
54
Citations
15345
World Ranking
3071
National Ranking
1087

Christian P. Giardina publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Christian P. Giardina sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 190 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

Christian P. Giardina D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Christian P. Giardina sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 54 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Overview

Christian P. Giardina is affiliated with the US Forest Service in the United States. Their research primarily focuses on environmental science and agricultural and biological sciences, with particular attention to global and planetary change, nature and landscape conservation, ecology, plant science, and the broader field of ecology, evolution, behavior, and systematics.

Their published work includes significant contributions across various topics, including ecology and vegetation dynamics studies, fire effects on ecosystems, Pacific and Southeast Asian studies, conservation, biodiversity and resource management, forest ecology and management, forest ecology and biodiversity studies, and plant water relations and carbon dynamics.

Giardina has authored multiple scholarly papers, with notable recent publications such as:

  • "ForestGEO: Understanding forest diversity and dynamics through a global observatory network," 2020, Biological Conservation
  • "Arbuscular mycorrhizal trees influence the latitudinal beta-diversity gradient of tree communities in forests worldwide," 2021, Nature Communications
  • "Distribution of biomass dynamics in relation to tree size in forests across the world," 2022, New Phytologist
  • "Mycorrhizal feedbacks influence global forest structure and diversity," 2023, Communications Biology
  • "Nutrient-use strategy and not competition determines native and invasive species response to changes in soil nutrient availability," 2021, Restoration Ecology

Throughout their career, Giardina has collaborated with a range of frequent coauthors, including Susan Cordell, Creighton M. Litton, Kainana S. Francisco, Amanda Uowolo, and Julian Dendy.

The scientist's work has appeared in several publication venues, with multiple contributions to Sustainability, Forest Service Research Data Archive, Forest Ecology and Management, Pacific Conservation Biology, and Nature Communications.

Best Publications

  • Temperature and soil organic matter decomposition rates – synthesis of current knowledge and a way forward

    Richard T. Conant;Richard T. Conant;Michael G. Ryan;Göran I. Ågren;Hannah E. Birge

  • Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature.

    Christian P. Giardina;Michael G. Ryan;Michael G. Ryan

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

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

  • Why do tree species affect soils? The Warp and Woof of tree-soil interactions

    Dan Binkley;Christian Giardina

  • CTFS-ForestGEO: A worldwide network monitoring forests in an era of global change

    Kristina J. Anderson-Teixeira;Kristina J. Anderson-Teixeira;Stuart J. Davies;Stuart J. Davies;Amy C. Bennett;Erika B. Gonzalez-Akre

  • A synthesis of current knowledge on forests and carbon storage in the United States

    Duncan C. McKinley;Duncan C. McKinley;Michael G. Ryan;Michael G. Ryan;Richard A. Birdsey;Christian P. Giardina

  • Global importance of large‐diameter trees

    James A. Lutz;Tucker J. Furniss;Daniel J. Johnson;Stuart J. Davies

  • AN EXPERIMENTAL TEST OF THE CAUSES OF FOREST GROWTH DECLINE WITH STAND AGE

    Michael G. Ryan;Michael G. Ryan;Dan Binkley;James H. Fownes;Christian P. Giardina

  • Plant diversity increases with the strength of negative density dependence at the global scale.

    Joseph A. LaManna;Scott A. Mangan;Alfonso Alonso;Norman A. Bourg;Norman A. Bourg

  • Total Belowground Carbon Allocation in a Fast-growing Eucalyptus Plantation Estimated Using a Carbon Balance Approach

    Christian P. Giardina;Michael G. Ryan

  • The effects of slash burning on ecosystem nutrients during the land preparation phase of shifting cultivation

    Christian P. Giardina;Robert L. Sanford;Ingrid C. Døckersmith;Victor J. Jaramillo

  • Primary production and carbon allocation in relation to nutrient supply in a tropical experimental forest

    Christian P. Giardina;Michael G. Ryan;Dan Binkley;James H. Fownes

  • Tree species and soil textural controls on carbon and nitrogen mineralization rates

    Christian P. Giardina;Michael G. Ryan;Robert M. Hubbard;Robert M. Hubbard;Dan Binkley

  • Warming-related increases in soil CO2 efflux are explained by increased below-ground carbon flux

    Christian P. Giardina;Christian P. Giardina;Creighton M. Litton;Susan E. Crow;Gregory P. Asner

  • Tropospheric O3 compromises net primary production in young stands of trembling aspen, paper birch and sugar maple in response to elevated atmospheric CO2

    John S. King;John S. King;Mark E. Kubiske;Kurt S. Pregitzer;George R. Hendrey

  • ForestGEO: Understanding forest diversity and dynamics through a global observatory network

    Stuart J. Davies;Iveren Abiem;Kamariah Abu Salim;Salomón Aguilar

  • Changes in Soil Phosphorus and Nitrogen During Slash-and-Burn Clearing of a Dry Tropical Forest

    C. P. Giardina;R. L. Sanford;I. C. Døckersmith

  • Belowground carbon cycling in a humid tropical forest decreases with fertilization.

    Christian P. Giardina;Dan Binkley;Michael G. Ryan;James H. Fownes

  • Temperature and vegetation effects on soil organic carbon quality along a forested mean annual temperature gradient in North America

    Cinzia Fissore;Christian P. Giardina;Randall K. Kolka;Carl C. Trettin

  • Below‐ground carbon flux and partitioning: global patterns and response to temperature

    C. M. Litton;C. P. Giardina

  • Reduction of soil carbon formation by tropospheric ozone under increased carbon dioxide levels

    Wendy M. Loya;Kurt S. Pregitzer;Noah J. Karberg;John S. King

  • A synthesis of the science on forests and carbon for U.S. Forests

    Michael G. Ryan;Mark E. Harmon;Richard A. Birdsey;Christian P. Giardina

Frequent Co-Authors

Creighton M. Litton
Creighton M. Litton University of Hawaii at Manoa
Susan Cordell
Susan Cordell US Forest Service
Rebecca Ostertag
Rebecca Ostertag University of Hawaii at Hilo
Lawren Sack
Lawren Sack University of California, Los Angeles
Michael G. Ryan
Michael G. Ryan Colorado State University
Gregory P. Asner
Gregory P. Asner Arizona State University
Stephen P. Hubbell
Stephen P. Hubbell University of California, Los Angeles
Stuart J. Davies
Stuart J. Davies Smithsonian Tropical Research Institute
David Kenfack
David Kenfack Smithsonian Tropical Research Institute
John S. King
John S. King North Carolina State University

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Related Online Degrees & Career Pathways

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For careers in research libraries, digital archives, or information management, a library science degree offers foundational skills. This is especially useful when managing ecological datasets or supporting academic research teams.

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