Photo Gallery
Some selected photos from LTAR sites
Sampling from large frame
Large field day crowd learning about the Collaborative Adaptive Rangeland Management experiment (part of the LTAR Common Experiment) at the Central Plains Experimental Range
Corn at peak biomass at LTAR field site.
Sensor-based variable-rate N fertliziation of corn
DJI flight
Harvesting by ASP field weir
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.
UCB: Lysine app in LTAR Lysimeters-0678
KBS LTER investigator Kevin Kahmark analyzes greenhouse gas samples in the lab; Photo Credit: K.Stepnitz, Michigan State University
UCB: Lysine app in LTAR Lysimeters-0688
PRHP instrumentation
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.
Research associate Kevin Kahmark and graduate student Di Liang discuss peak integration.
Steers are fit with GPS collars and pedometers, which are used to assess livestock movement and grazing activity
Researcher Kevin Kahmark adjusts fittings on automatic gas sampling chamber.
Outreach at the University of Florida
Sorting through harvested vegetation
A cowboy herds cattle on an improved pasture
GPS collar to monitor grazing patterns of beef cow on native praire pasture. Southern Plains LTAR, USDA ARS, El Reno, Oklahoma. (Photographer: Rick Todd).
SP canola in common experiment. Water, energy, and GHG fluxes from canola site in Common Experiment “GREEN Farm”
Study of grazing behavior in LTAR native prairie pasture Common Experiment site.
JER LTAR common experiment veg sampling
GACP Tifton GA Little River WQ sampling 2
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.
The American pronghorn is a common ungulate at the Central Plains Experimental Range (Photo by M. Lindquist)
KBS Flux Tower 1
El Reno
Clipping aboveground biomass from a Central Plains Experimental Range long-term research plot
UCB: Lysine app in LTAR Lysimeters-0693
UCB Pratt
KBS Flux Tower 3. 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
Baseline soil sampling at LTAR field site
GACP Tifton GA Eddy FluxStation
Swamp buggy tour at the MAERC site
DJI flight
CPER Asprirational
Milutin measuring soil moisture in corn field
Bosch 043
Establishing plot corners for the LTAR plot-scale experiment.
Field Researchers at water level monitoring station
NGPRL micrometerorological station at LTAR field site-summer.
Winter 2016 CFG LTAR Input_Cropped
Gathering input from the NGPRL Customer Focus Group about teatment designs for LTAR Common Experiment
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
NGPRL micrometeorological station at LTAR field site-winter
Sensor-based variable-rate N fertilization of wheat
UCB: LTAR Manure injection with hose (1 of 1)
Small Flume and Box
Milutin taking gas samples
CMRB replicated plots August 2017
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
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
Two gas frames on either side of corn plants
Archbold 2016 meeting – Image 1
UCB: Lysine app in LTAR Lysimeters-0664
UCB: LTAR Manure injection (2 of 2)
Ogletree
Ian Leslie, USDA-ARS Physical Scientist, taking deep core soil samples at Cook West for baseline soil characterization.
WGW Flume One
SP #13 hyperspectral data from native prairie. Collecting data for analysis of forage biomass and quality from Common Experiment native prairie site.
UCB: LTAR Eddy Tower (1 of 1)
A pasture burn with an Eddy Flux tower in the background
Tour group gets an amphibian talk
Prescribed burning is used a management strategy to increase vegetation structure heterogeneity in the landscape at the Central Plains Experimental Range
Dinku
A plant diversity plot at ArchboldUF_RCREC
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.