World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
37
Citations
5608
World Ranking
8881
National Ranking
3185

Overview

Donald E. Todd is a researcher affiliated with Oak Ridge National Laboratory in the United States. Their work spans multiple fields within environmental and earth sciences, focusing significantly on isotope applications and geochemical processes.

Their primary fields of study include Environmental Science and Earth and Planetary Sciences, with specific subfields in Ecology, Geochemistry and Petrology, and Global and Planetary Change. These areas reflect a multidisciplinary approach to understanding environmental systems and isotope behavior in natural contexts.

Donald E. Todd's research extensively covers topics such as Isotope Analysis in Ecology, Groundwater and Isotope Geochemistry, and Radioactive Contamination and Transfer. These topics indicate a focus on tracing chemical and isotopic signatures within ecosystems and environmental compartments, alongside considerations of contamination pathways.

Their recent publication is titled "Enriched Background Isotope Study (EBIS): Analysis of 14C-Enriched Carbon Cycle in Soils and Litter at Forested Oak Ridge and AmeriFlux Sites, 2001-2011", published in 2024 by OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). This paper reflects engagement with long-term ecological studies involving carbon cycle isotopes, highlighting an interest in environmental carbon dynamics over time.

Frequent coauthors collaborating with Donald E. Todd include:

  • Paul J. Hanson
  • Jana R. Phillips
  • Charles T. Garten
  • Christopher W. Swanston
  • Karis J. McFarlane

Publications are predominantly found in venues such as OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), indicating a connection to research supported or shared by government scientific repositories.

Best Publications

  • Seasonal and topographic patterns of forest floor CO2 efflux from an upland oak forest

    P. J. Hanson;S. D. Wullschleger;S. A. Bohlman;D. E. Todd

  • Mercury Distribution Across 14 U.S. Forests. Part I: Spatial Patterns of Concentrations in Biomass, Litter, and Soils

    D. Obrist;D. W. Johnson;S. E. Lindberg;Y. Luo

  • Transpiration from a multi-species deciduous forest as estimated by xylem sap flow techniques

    Stan D Wullschleger;P.J Hanson;D.E Todd

  • Relationships Among Iron, Aluminum, Carbon, and Sulfate in a Variety of Forest Soils1

    Dale W. Johnson;D. E. Todd

  • Allometric determination of tree growth in a CO2‐enriched sweetgum stand

    Richard J. Norby;Donald E. Todd;Jason Fults;Dale W. Johnson

  • Harvesting Effects on Long‐Term Changes in Nutrient Pools of Mixed Oak Forest

    D. W. Johnson;D. E. Todd

  • Nutrient Cycling in Red Spruce Forests of the Great Smoky Mountains

    D. W. Johnson;Helga Van Miegroet;S. E. Lindberg;R. B. Harrison

  • A six-year study of sapling and large-tree growth and mortality responses to natural and induced variability in precipitation and throughfall

    Paul J. Hanson;Donald E. Todd;Jeffrey S. Amthor

  • Sulfate Adsorption and Desorption Reversibility in a Variety of Forest Soils

    Robert B. Harrison;Dale W. Johnson;Don E. Todd

  • Changes in soil quality and below-ground carbon storage with conversion of traditional agricultural crop lands to bioenergy crop production

    V.R Tolbert;D.E Todd;L.K Mann;C.M Jawdy

  • Drought resistance of two hybrid Populus clones grown in a large-scale plantation

    Timothy J. Tschaplinski;Gerald A. Tuskan;G. Michael Gebre;Donald E. Todd

  • Effects of elevated CO2 on nutrient cycling in a sweetgum plantation

    D. W. Johnson;W. Cheng;J. D. Joslin;R. J. Norby

  • Effects of Sawlog vs. Whole-Tree Harvesting on the Nitrogen, Phosphorus, Potassium, and Calcium Budgets of an Upland Mixed Oak Forest

    D. W. Johnson;D. C. West;D. E. Todd;L. K. Mann

  • Hydrogeochemical processes controlling subsurface transport from an upper subcatchment of Walker Branch watershed during storm events. 1. Hydrologic transport processes

    G.V. Wilson;P.M. Jardine;R.J. Luxmoore;L.W. Zelazny

  • Nutrient cycling in forests of Walker Branch Watershed, Tennessee : roles of uptake and leaching in causing soil changes

    D. W. Johnson;D. E. Todd

  • Changes in nutrient distribution in forests and soils of Walker Branch watershed, Tennessee, over an eleven-year period

    Dale W. Johnson;Gray S. Henderson;Donald E. Todd

  • Measuring stem water content in four deciduous hardwoods with a time-domain reflectometer

    Stan D. Wullschleger;Paul J. Hanson;Donald E. Todd

  • Atmospheric Sulfur Deposition, Neutralization, and Ion Leaching in Two Deciduous Forest Ecosystems

    D. D. Richter;D. W. Johnson;D. E. Todd

  • Low dissolved organic carbon input from fresh litter to deep mineral soils

    M. Fröberg;P. M. Jardine;P. J. Hanson;C. W. Swanston

  • Cycling of organic and inorganic sulphur in a chestnut oak forest.

    D. W. Johnson;G. S. Henderson;D. D. Huff;S. E. Lindberg

  • Nutrient export by leaching and whole-tree harvesting in a loblolly pine and mixed oak forest

    D. W. Johnson;D. E. Todd

  • Forest nutrient and carbon pools at Walker Branch watershed: changes during a 21-year period

    Carl C. Trettin;D.W. Johnson;D.E. Todd

Frequent Co-Authors

Paul J. Hanson
Paul J. Hanson Oak Ridge National Laboratory
Dale W. Johnson
Dale W. Johnson University of Nevada Reno
Stan D. Wullschleger
Stan D. Wullschleger Oak Ridge National Laboratory
Charles T. Garten
Charles T. Garten Oak Ridge National Laboratory
Timothy J. Tschaplinski
Timothy J. Tschaplinski Oak Ridge National Laboratory
Carl C. Trettin
Carl C. Trettin US Forest Service
Michael A. Huston
Michael A. Huston Texas State University
Richard J. Norby
Richard J. Norby University of Tennessee at Knoxville
Robert M. Augé
Robert M. Augé University of Tennessee at Knoxville
Gerald A. Tuskan
Gerald A. Tuskan Oak Ridge National Laboratory

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