Horse Ridge RNA
| Name: |
Horse Ridge |
| Ownership: |
BLM |
| Type: |
RNA |
| State: |
Oregon |
| Ecoregion: |
Blue Mountains |
| District |
Prineville District |
| Acres: |
609 |
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Horse Ridge Research Natural Area (RNA) was established to represent western juniper (Juniperus occidentalis) -big sagebrush (Artemisia tridentata) vegetation within the juniper zone of central Oregon. The RNA has moderate to steep northeast-facing slopes above Dry River Gorge. It is located on top of rolling topography which rises above the surrounding flat to undulating plateau. Columbia River basalts underlie the entire area. The western juniper/big sagebrush/threadleaf sedge (Carex filifolia) community dominates the RNA while a small area at the eastern edge is dominated by the western juniper/big sagebrush/bluebunch wheatgrass (Agropyron Spicatum) community.
| Records and Plans: |
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| Research Publications Associated with this RNA: |
- Post-drought growth responses of western juniper (Juniperus occidentalis var. occidentalis) in central Oregon; Knapp, Paul A.; Soulé, Peter T.; Grissino-Mayer, Henri D. 2001
- Climatic regionalization and the spatio-temporal occurrence of extreme single-year drought events (1500-1998) in the interior Pacific Northwest, USA; Knapp, Paul A.; Grissino-Mayer, Henri D.; Soulé, Peter T. 2002
- Recent juniperus occidentalis (Western juniper) expansion on a protected site in central Oregon Knapp, P. A.; Soule P. T. 1998
- Detecting potential regional effects of increased atomspheric CO2 on growth rates of western juniper Knapp, P. A.; Soule, P. T.; Grissino-Mayer, H. D. 2001
- Geographical distribution of an 18th-century heart rot outbreak in western juniper
Knapp, P. A.; Soule, P. T. 1999
- Bird populations in four vegetational types in central Oregon; Gashwiler, J. S. 1977
- Limits on aboveground net primary production, leaf area, and biomass in vegetational zones of the Pacific Northwest; Gholz, H. L. 1979
- Structure and productivity of Juniperus occidentalis in central Oregon; Gholz, H. L. 1980
- Environmental limits on aboveground net primary production, leaf area, and biomass in vegetation zones of the Pacific Northwest; Gholz, H. L. 1982
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