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Environmental Sciences

D-Index
65
Citations
22324
World Ranking
2155
National Ranking
876

Overview

Timothy B. Parkin is affiliated with the Agricultural Research Service in the United States. Their research spans multiple aspects of environmental science and agricultural and biological sciences, with a focus on soil processes and nutrient dynamics.

Their work addresses several interconnected topics, including:

  • Soil Carbon and Nitrogen Dynamics
  • Atmospheric and Environmental Gas Dynamics
  • Groundwater and Isotope Geochemistry
  • Groundwater Flow and Contamination Studies
  • Soil and Water Nutrient Dynamics
  • Hydrology and Watershed Management Studies
  • Lipid Metabolism and Biosynthesis

Their publication record includes contributions to the following journals:

  • Journal of Environmental Quality
  • Agriculture Ecosystems & Environment

Notable recent papers include:

  • "Global Research Alliance N2O chamber methodology guidelines: Flux calculations" (2020), published in Journal of Environmental Quality
  • "Nitrate losses and nitrous oxide emissions under contrasting tillage and cover crop management" (2022), published in Journal of Environmental Quality
  • "Nitrate losses in subsurface drainage and nitrous oxide emissions from a winter camelina relay cropping system reveal challenges to sustainable intensification" (2022), published in Agriculture Ecosystems & Environment

Frequent collaborators include:

  • Peter O'Brien
  • Bryan D. Emmett
  • Robert W. Malone
  • John L. Kovar
  • T. C. Kaspar

Their research integrates soil science with environmental chemistry and engineering, addressing challenges relevant to sustainable agriculture, nutrient management, and greenhouse gas emissions. Their focus on flux calculations and emissions relates directly to environmental monitoring and policy considerations in agricultural landscapes.

Best Publications

  • FIELD-SCALE VARIABILITY OF SOIL PROPERTIES IN CENTRAL IOWA SOILS

    C. A. Cambardella;T. B. Moorman;T. B. Parkin;D. L. Karlen

  • Defining and Assessing Soil Quality

    John W. Doran;Timothy B. Parkin

  • Soil microsites as a source of denitrification variability

    Timothy B. Parkin

  • Direct Measurement of Oxygen Profiles and Denitrification Rates in Soil Aggregates

    Alan J. Sexstone;Niels Peter Revsbech;Timothy B. Parkin;James M. Tiedje

  • Quantitative Indicators of Soil Quality: A Minimum Data Set

    John W. Doran;Timothy B. Parkin

  • NITROUS OXIDE EMISSIONS FROM CORN–SOYBEAN SYSTEMS IN THE MIDWEST

    Timothy B. Parkin;Thomas C. Kaspar

  • Spatial Variability of Microbial Processes in Soil—A Review

    T. B. Parkin

  • Temporal Response of Soil Denitrification Rates to Rainfall and Irrigation

    Alan J. Sexstone;Timothy B. Parkin;James M. Tiedje

  • Rye Cover Crop and Gamagrass Strip Effects on NO3 Concentration and Load in Tile Drainage

    T.C. Kaspar;D.B. Jaynes;T.B. Parkin;T.B. Moorman

  • Comparing carbon substrates for denitrification of subsurface drainage water.

    Colin M. Greenan;Thomas B. Moorman;Thomas C. Kaspar;Timothy B. Parkin

  • Impact of Biochar on Manure Carbon Stabilization and Greenhouse Gas Emissions

    Natalia Rogovska;David Laird;Richard Cruse;Pierce Fleming

  • Impact of Nitrogen Fertilization and Cropping System on Carbon Sequestration in Midwestern Mollisols

    Ann E. Russell;David Laird;Timothy B. Parkin;Antonio P. Mallarino

  • Water Quality in Walnut Creek Watershed: Nitrate-Nitrogen in Soils, Subsurface Drainage Water, and Shallow Groundwater

    C. A. Cambardella;T. B. Moorman;D. B. Jaynes;J. L. Hatfield

  • Calculating the detection limits of chamber-based soil greenhouse gas flux measurements.

    T. B. Parkin;R. T. Venterea;S. K. Hargreaves

  • Effectiveness of oat and rye cover crops in reducing nitrate losses in drainage water

    T.C. Kaspar;D.B. Jaynes;T.B. Parkin;T.B. Moorman

  • Effect of sampling frequency on estimates of cumulative nitrous oxide emissions.

    Timothy B. Parkin

  • Simulating long-term impacts of cover crops and climate change on crop production and environmental outcomes in the Midwestern United States

    Andrea D. Basche;Sotririos V. Archontoulis;Thomas C. Kaspar;Dan B. Jaynes

  • Denitrification activity, wood loss, and N2O emissions over 9 years from a wood chip bioreactor

    Thomas B. Moorman;Timothy B. Parkin;Thomas C. Kaspar;Dan B. Jaynes

  • Field and Laboratory Tests of Soil Respiration

    Timothy B. Parkin;John W. Doran;E. Franco-Vizcaíno

  • Adaptation of Denitrifying Populations to Low Soil pH

    Timothy B. Parkin;Alan J. Sexstone;James M. Tiedje

Frequent Co-Authors

Jerry L. Hatfield
Jerry L. Hatfield Iowa State University
Dan B. Jaynes
Dan B. Jaynes Agricultural Research Service
Thomas M. Isenhart
Thomas M. Isenhart Iowa State University
John H. Prueger
John H. Prueger Agricultural Research Service
Cynthia A. Cambardella
Cynthia A. Cambardella Agricultural Research Service
John W. Doran
John W. Doran University of Nebraska–Lincoln
Douglas L. Karlen
Douglas L. Karlen Iowa State University
Matthew J. Helmers
Matthew J. Helmers Iowa State University
Thomas B. Moorman
Thomas B. Moorman Agricultural Research Service
Brian J. Kerr
Brian J. Kerr Agricultural Research Service

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