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CPRL LABORATORY
Main CPRL office building constructed in 1961 with a wing added in 1968. This building houses all the CRPL scientists and provides seven laboratory rooms. The CPRL administrative office is also located in this building. Several annex buildings provide additional laboratory space including a microbiology annex built in 1983.
Photo by Karen Copeland (USDA-ARS).
AERIAL PHOTO TAKEN IN MAY 1992
Aerial photograph of the "north section" of the CPRL taken in 1992. The headquarters are in the lower left quadrant. The large range land section in the upper center is a playa lake that collects runoff water from the surrounding fields. The CPRL has 1,600 ac. of Federally owned land. The Texas Agricultural Experiment Station owns 50 ac. adjoing the CPRL to the east and rents an additional 200 ac adjoing their property to the east.
Photo courtsey of USDA-FSA (Farm Services Agency; formerly ASCS) (Randall County).
FAMOUS Bushland landmark tree row entrance. These trees were part of the original wind break plantings in the late 1930s when the laboratory was established in 1938 by the USDA-Soil Conservation Service to study wind erosion and dryland cropping. Laboratory became part of ARS in 1953 when ARS was created.
Photo by Karen Copeland (USDA-ARS).
Main weather station, which is a cooperating NOAA-NWS station, has weather records beginning in 1938. Now the station is mainly automated, but manual observations of Tmax, Tmin, Precipitation, Pan Evaporation, and Soil Temperatures are taken at 08:00 am each morning.
Photo by Karen Copeland (USDA-ARS).
Evapotranspiration (ET) research weather station established in 1987 on an irrigated grass site.
Photo by Karen Copeland (USDA-ARS).
Animal metabolism laboratory and adjoing feedlot and research facilities.
Photo by Karen Copeland (USDA-ARS).
Interior view of animal metabolism laboratory.
Photo by N.A. Cole (USDA-ARS).
Panaramic view of the feedlot complex. Nine pens are equiped with CALAN Head gates to measure individual feed consumption and eighteen enviromental pens are designed to collect and measure pen runoff.
Photo Jerry Ennis (USDA-ARS).
Bushland "wind farm" illustrating windmills for water pumping and electrical wind power systems.
Photo by Karen Copeland(USDA-ARS).
H-Flume used to measure runoff, erosion, and chemical movement from dryland watersheds in a wheat-sorghum-fallow rotation with conventional and no-till systems.
Photo by T.A. Howell (USDA-ARS).
Runoff through an H-Flume from a no-till plot in 1989. Note the "relatively" low sediment carried in this runoff water.
Photo by O.R. Jones (USDA-ARS).
Water harvesting on a Conservation Bench Terrace (called a Zingg Terrace). Two-thirds of the watershed (right side) contributes runoff so the cross-leveled one-third (where water is ponded) can support annual cropping.
Photo by Louis Baumhardt (USDA-ARS).
Center pivot irrigating corn by the LEPA method in 1993. The different irrigation treatments are evident radially from the pivot point (plots are circular around the pivot point).
Photo by T.A. Howell (USDA-ARS).
One of the three lateral-move sprinkler systems used at the CPRL. Two smaller systems are used for plot research and have a buried cable guidance system, while the third system (1,480 ft long; and the one on the left in this slide) irrigates the four weighing lysimeter fields.
Photo by T.A. Howell (USDA-ARS).
Graded furrow irrigation for a 1/4 mi long plot of grain sorghum in 1995.
Photo by T.A. Howell (USDA-ARS).
One of four 10 ft by 10 ft by 8 ft deep monolith weighing lysimeters shown with a developing soybean crop in 1995. The first two weighing lysimeters have been in operation since 1987 while the other two have been in operation since 1989. Irrigated crops of wheat, corn, sorghum, and soybean have been studied. Wheat and sorghum have been studied under limited irrigation. Dryland crops of wheat, sorhum, and corn have been studied. Evaporation from bare and residue soils have been measured. Alfalfa will be planted on two lysimeters for the 1996-1998 seasons.
Photo by T.A. Howell (USDA-ARS).
Inside view of a weighing lysimeter. Dr. Arland Schneider is inspecting the scale (parts in blue).
Photo by Jack Dykinga.
SPER (soil-plant-environment-research) facility consisting of an automated rain shelter and forty-eight monolithic lysimeters (40 in. by 30 in. by 8 ft. deep). Twenty-four monoliths contain Ulysses silt loam from Garden City, KS; twelve monoliths contain Amarillo sandy loam from Big Spring, TX; and twelve monoliths contain Pullman clay loam soil from Bushland. Four of the lysimeters are weighing lysimeters while the rest are weighed using a crane and load cell located in the rain shelter. The rain shelter is 40 ft by 60 ft and patterned after a design from ARS at Mandan, ND.
Photo by T.A. Howell (USDA-ARS).
Weighing lysimeter installed in 1994 to measure reference ET from grass. The lysimeter is 5 ft by 5 ft by 8 ft deep containing a Pullman clay loam monolith and located in the ET weather station field plot.
Photo by T.A. Howell (USDA-ARS).
Dust Samplers
Solar-PV Array
This is a 0.75 kW DC Solar-PV Array of thin-film amorphous-silicon modules (25 of them) which powered either a single or 3-phase 230 Volt 0.56 kW (0.75 hp) AC submersible motor and centrifugal pump via an inverter and pumped water at simulated water pumping depths in 30 to 50 meter (98 to 164 ft) range from 2002 to 2005. Each set of modules are connected in series and the five sets are connected in parallel -- the extra smaller PV module in the first set of modules (it is not connected to the array but data were collected on the panel temperature) is a thin-film cadmium-telluride module which is representative of the modules used to pump water from 1995 to 2001 (there were 60 of them). The results of the data collected on this water pumping experiment from 1995 to 2003 can be found in the paper titled "Water Pumping with AC Motors and Thin-Film Solar Panels" which was presented at the American Solar Energy Society meeting in June, 2003 in Austin , TX .
Bushlands Three Micon Wind Towers at sunset.
Amonia Tower