Photo Gallery
Some selected photos from LTAR sitesPrescribedBurn
Prescribed burning is used a management strategy to increase vegetation structure heterogeneity in the landscape at the Central Plains Experimental Range
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Carbon dynamics, including net ecosystem exchange, litter fall, soil respiration, plant productivity and related water uptake, are monitored along an elevational gradient. This phenocam view is of the lowest elevation, Wyoming big sagebrush, site. Snow is common, but ephemeral during the winter.
Field Researchers at water level monitoring station
Field Researchers at water level monitoring station
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GLBRC/LTER scientist Terenzio Zenone checks the carbon dioxide flux tower on a GLBRC / KBS LTER switchgrass field (Marshall Farm); Photo Credit: B. Zenone, Michigan State University
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GPS collar to monitor grazing patterns of beef cow on native praire pasture. Southern Plains LTAR, USDA ARS, El Reno, Oklahoma. (Photographer: Rick Todd).
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Steers are fit with GPS collars and pedometers, which are used to assess livestock movement and grazing activity
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Clipping aboveground biomass from a Central Plains Experimental Range long-term research plot
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Ian Leslie, USDA-ARS Physical Scientist, taking deep core soil samples at Cook West for baseline soil characterization.
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The American pronghorn is a common ungulate at the Central Plains Experimental Range (Photo by M. Lindquist)
SP #13 hyperspectral data from native prairie
Collecting data for analysis of forage biomass and quality from Common Experiment native prairie site.
rumen sampling
Emptying the rumen vac used for evaluating quantity and quality of forage intake of grazing beef cattle. Southern Plains LTAR, USDA ARS, El Reno, Oklahoma. Partially funded by: USDA-NIFA #2013-69002-23146.
sampling rumen for intake studies in prairie pasture
Collecting consumed forage from canulated steer as part of an intensive campaign of the NIFA-funded Grazing CAP. Collaborators: SP LTAR, ARS Bushland, ARS Woodward, University of Oklahoma, Oklahoma State University, the Noble Research Institute.
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Research technician Matt Dornan collecting greenhouse gas samples in the early successional field plots of the KBS LTER/GLBRC Biofuels research program, Photo Credit: K. Stepnitz, Michigan State University KBS LTER
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KBS LTER researcher Kevin Kahmark works on the automated greenhouse gas sampling system, part of the KBS LTER biofuels experiment; Photo Credit: K.Stepnitz, Michigan State University
Sensor-based variable-rate N fertliziation of corn
Sensor-based variable-rate N fertliziation of corn
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Researcher Kevin Kahmark adjusts fittings on automatic gas sampling chamber.
Beef cow_GPS in native prairie
Study of grazing behavior in LTAR native prairie pasture Common Experiment site.
SP canola in common experiment
Water, energy, and GHG fluxes from canola site in Common Experiment “GREEN Farm”
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Large field day crowd learning about the Collaborative Adaptive Rangeland Management experiment (part of the LTAR Common Experiment) at the Central Plains Experimental Range
Winter 2016 CFG LTAR Input_Cropped
Gathering input from the NGPRL Customer Focus Group about teatment designs for LTAR Common Experiment
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KBS LTER investigator Kevin Kahmark analyzes greenhouse gas samples in the lab; Photo Credit: K.Stepnitz, Michigan State University
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Research associate Kevin Kahmark and graduate student Di Liang discuss peak integration.
Sensor-based variable-rate N fertilization of wheat
Sensor-based variable-rate N fertilization of wheat
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Reynolds Creek at Tollgate weir defines an area of about a quarter (55 km²) of Reynolds Creek Experimental Watershed almost entirely comprised of the upper elevations that receive the greatest annual precipitation which predominately falls as snow. Elevations range from 1410 m to 2241 m. Vegetation is primarily sagebrush rangelands with small stands of Douglas fir (Pseudotsuga menziesii), aspen (Populus spp.), and Alpine Fir (Abies lasiocarpa) at the higher elevations
A pasture burn with an Eddy Flux tower in the background
A pasture burn with an Eddy Flux tower in the background
ABOUT LTAR
The USDA Agricultural Research Service (ARS) Long-Term Agroecosystem Research network consists of 18 Federal and university agricultural research sites with an average of over 50 years of history. The goal of this research network is to ensure sustained crop and livestock production and ecosystem services from agroecosystems, and to forecast and verify the effects of environmental trends, public policies, and emerging technologies.