Pendleton Perennial Grassland
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To serve as a baseline for evaluating other experiments at Pendleton
- Description
- The perennial grassland site has no experimental variables and is intended to approximate a native grasslands and serves as a baseline for evaluating changes in other experiments. Since 2004 data measurements taken include above-ground productivity and species counts. Soil is sampled every 5 and 10 years and analyzed for nutrients and SOM.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Columbia Basin Agricultural Research Center, University of Oregonresearch organisation
- People
Site: Perennial Grassland plot
- Type
- research station field
- Local code
- GP
- Location
- PendletonOregonUSA
- Geographic location
- 45.720699, -118.627532
- Elevation
- 455 Metres
- Visits permitted?
- No
- Management
- The site is periodically reseeded with introduced grass selections: dominant grass species are bluebunch wheatgrass (Agropyron spicatum) with lesser amounts of Idaho fescue (Festuca idahoensis). Occassional fertilizers are applied and weeds are controlled as needed. It was grazed occasionally until 1985 and vegetation is sometimes clipped during or after summer growth.
- Soil description
- Soils are coarse silty mixed mesic Typic Haploxerolls
- Climate description
- The climate is semi-arid, but partially influenced by maritime winds from the Pacific Ocean. Winters are cool and wet, and summers are hot and dry
- Climate properties
Variable Time period Value (range) Units precipitation 420 millimeter air temperature 10 (-1 – 21) degree Celsius
Design period: (1931—)
- Design description
- Single plot. No treatments applied
- Crop
Crop Years grown grass
Related publications
- Project website
- S. Petrie 2001. 2001 PROGRESS REPORT LONG-TERM EXPERIMENTS: PENDLETON, OREGON
- Ghimire, R., Bista, P. & Machado, S. Long-term Management Effects and Temperature Sensitivity of Soil Organic Carbon in Grassland and Agricultural Soils. Sci Rep 9, 12151 (2019). https://doi.org/10.1038/s41598-019-48237-7 [In English]