Publisher's Synopsis
Excerpt from Vegetation-Soil Units in the Central Oregon Juniper Zone
The central Oregon juniper zone includes approximately acres in Crook, Des chutes, and Jefferson Counties where western juniper is a maior component of the vegetation. This area is one of three physiographic sub divisions of the Northwest representative of the pinyon-juniper zone in the Western United States. 'although no pinyon pines occur in the Oregon area, other features are similar to the broad parent zone. Soils are generally shallow and stony. The climate is characterized by high summer temperatures, cool winters, high winds, low relative humidity, and low annual precipitation. In the study area, the zone grades to the ponderosa pine zone, where mois ture is more effective, and to the sagebrush or grassland zones of less effective moisture.
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