United States: Kansas: Rannells Flint Hills Prairie

Latitude: 39.139281
Longitude: -96.523322

Rannells Flint Hills Prairie Fieldsite
Rannells Flint Hills Prairie Fieldsite

  • Network: Unaffiliated
  • Principal investigators: Clenton Owensby
  • PI-affiliated institution: Kansas State University
  • Primary IGBP ecosystem type: Deciduous Grasslands
  • Dominant plant functional type: Deciduous Grass
  • Recent and historic disturbance and management events that may affect this site:
    • Agriculture: Agricultural management of any kind, such as cultivation (including tillage, plowing, or discing), harvest, irrigation, pesticides, planting, or liming
    • Fire: Wildfire or managed burns
    • Grazing: Herbivory or browsing by mammals, managed or wild
  • Flux data collection:
    • Start date: May 1997
    • End date: October 2018
  • Flux methods:
    • Eddy Covariance
  • Optical data collection:
    • Start date: May 1997
    • End date: Ongoing
  • Data collection period: Continuous operation: Variable collected continuously with the reported method.
  • Data scale: Stand, Landscape, Other: We had 4 flux sites at different grazing intensities. One site has two identical eddy flux systems measuring the same fetch. The original project used relaxed eddy accumulation until 2002 with two ungrazed sites and a moderately grazed site. In 2002 those sites were converted to eddy correlation stations. In 2003, and additional site with abusive grazing was added with two identical towers. In 2007, a hyperspectral radiometer on a UAV as well as ground-based hyperspectral measurements of tallgrass prairie were added.
  • Collection methods: Tower, Airborne
  • Types of data collected: Imaging spectrometer (Hyperspectral), NDVI, PAR, PYR, Relative Humidity, Spectral reflectance,
  • Publications:
    • Bremer, Dale J., Jay M. Ham, Clenton E. Owensby, and Alan K. Knapp. "Responses of soil respiration to clipping and grazing in a tallgrass prairie." Journal of Environmental Quality 27, no. 6 (1998): 1539-1548.

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