. Vegetation of Oregon and Washington. Botany Oregon Ecology; Botany Washington (State) Ecology. Figure 71. — Many of the grasslands in the Interior Valley Zone were created by clearing or burning (or both) of forest lands; burn- ing hill pasture in the Umpqua valley, Figure 72. — Grassland areas in the Interior Valley Zone are heavily grazed. Typically low- lying pasturelands are improved (fore- ground), and hill grasslands and oak woodland (background) are used as un- improved pasture (near Corvallis, Ore- gon; photo courtesy Range Manage- ment, Oregon State University). 87. Please
. Vegetation of Oregon and Washington. Botany Oregon Ecology; Botany Washington (State) Ecology. Figure 71. — Many of the grasslands in the Interior Valley Zone were created by clearing or burning (or both) of forest lands; burn- ing hill pasture in the Umpqua valley, Figure 72. — Grassland areas in the Interior Valley Zone are heavily grazed. Typically low- lying pasturelands are improved (fore- ground), and hill grasslands and oak woodland (background) are used as un- improved pasture (near Corvallis, Ore- gon; photo courtesy Range Manage- ment, Oregon State University). 87. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Franklin, Jerry F. cn; Dyrness, C. T. Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture
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