Twelve sites of uniform topography and soils were selected in
the Pinus ponderosa/Purshia tridentata/Festuca idahoensis Association.
These sites were located in the rain shadow on the east flank
of the Oregon Cascades. A fire history in the form of fire scars on
ponderosa pine was available for nine of these...
Black Butte presents a unique natural laboratory for ecological
study. It is a volcanic cone of uniform configuration located in the
rain shadow on the east flank of the Oregon Cascades. Soils are of
very recent origin with no obvious development of horizons.
Physical and chemical analysis revealed little dissimilarity...