Topographic and Soil Carbon Reconstructions in Agricultural Fields, Iowa

Description

This dataset contains model predictions of soil erosion and soil organic carbon (SOC) redistribution caused by agricultural practices such as tillage erosion. Soil erosion diminishes agricultural productivity by driving the loss of SOC. This model addresses a growing need to predict soil organic carbon transport, loss, and deposition. The model was applied to three sites containing paired prairie grassland and field plots in Iowa, and predicts SOC redistribution between 1859 to 2019. The model was developed by incorporating a SOC mixing model with a landscape evolution model that simulates tillage erosion.

Resources

Name Format Description Link
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/nacp/TillageErosion_SOCRedistribute/
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1944
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1944
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/NACP/guides/TillageErosion_SOCRedistribute.html
33 Topographic and Soil Carbon Reconstructions in Agricultural Fields, Iowa: TillageErosion_SOCRedistribute.pdf https://data.ornldaac.earthdata.nasa.gov/public/nacp/TillageErosion_SOCRedistribute/comp/TillageErosion_SOCRedistribute.pdf
34 Hillslope transects at three sites showing redistribution of soil organic carbon (SOC) simulated over 160 years in Iowa. Sites (columns): Hoffman, Stinson, and Willis. Upper row shows hillshade maps illustrating topography at each site. Red lines show location of transects proceeding from upslope to downslope (e.g., A to A'). Lower three rows illustrate pattern of SOC along the transect distance (L) at soil depths at beginning of simulation (0 y), after 40 y, and at end of simulation (160 y). Red lines indicate the initial surface elevation at beginning of simulation. Insets highlight cases where soil with low SOC blankets soil with higher SOC. https://daac.ornl.gov/NACP/guides/TillageErosion_SOCRedistribute_Fig1.png

Tags

  • soils
  • land-surface
  • agriculture
  • earth-science

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