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Title: Integrated grassland observation sites and integrated cropland observation sites at El Reno, Oklahoma

Author
item XIAO, XIANGMING - University Of Oklahoma
item BASARA, JEFF - University Of Oklahoma
item Steiner, Jean
item COLEMAN, SAMUEL - Retired ARS Employee
item Starks, Patrick
item DUCKLES, JONAH - University Of Oklahoma
item WAGLE, PRADEEP - University Of Oklahoma
item Northup, Brian
item ZHOU, YUTING - University Of Oklahoma
item BAJGAIN, RAJEN - University Of Oklahoma

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/28/2014
Publication Date: N/A
Citation: N/A

Interpretive Summary: Abstract Only

Technical Abstract: With the financial support from the National Science Foundation and the USDA National Institute of Food and Agriculture, a team of researchers from the University of Oklahoma and the USDA ARS Grazinglands Research Laboratory have worked together and established two Integrated Grassland Observation sites (iGOS) at El Reno, Oklahoma in 2013. This pair of iGOS sites focuses on the comparison of the land-atmosphere exchange between native and improved pasturelands. Two Integrated Cropland Observation sites (iCOS) will be deployed in spring 2014 over winter wheat (Triticum aestivum L.) to compare the land-atmosphere exchange in the croplands with various management practices (till versus no-till, cattle grazing versus no cattle grazing). Each of iGOS and iCOS sites is equipped with an eddy covariance system for measuring energy, CO2, H2O, and CH4 fluxes between the land surface and the atmosphere, in situ observations of soil and atmospheric state variables, a Phenocam to track vegetation phenology, and a COSMOS instrument to measure integrated soil moisture at the landscape scale. In-situ vegetation, soil, and remote sensing (hyperspectral, multispectral, and thermal) measurements will be collected at these sites during intensive field campaigns. The study area also includes the Oklahoma Mesonet El Reno site (ELRE), which collects soil and atmospheric measurements and serves as the reference weather and climate dataset for the project. This multi-site and multi-scale observation facility serves as the core site for the USDA and NSF projects, and also contributes substantially to the USDA ARS Long-term Agro-ecosystem Research (LTAR) Network.