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Rangeland Exclosures of Northeastern Oregon: Stories They Tell (1936-2004) (in English)
United States Department Of Agriculture (Author)
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Createspace Independent Publishing Platform
· Paperback
Rangeland Exclosures of Northeastern Oregon: Stories They Tell (1936-2004) (in English) - United States Department of Agriculture
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Synopsis "Rangeland Exclosures of Northeastern Oregon: Stories They Tell (1936-2004) (in English)"
Rangeland exclosures installed primarily in the 1960s, but with some from the 1940s, were resampled for changes in plant community structure and composition periodically from 1977 to 2004 on the Malheur, Umatilla, and Wallowa-Whitman National Forests in northeastern Oregon. They allow one to compare vegetation with all-ungulate exclusion (known historically as game exclosures), all-livestock exclusion (known historically as stock exclosures), and with no exclusion (known as open areas). Thirteen upland rangeland exclosures in northeastern Oregon were selected and are presented with plant community trend data and possible causes of changes over time. Key findings are that moderate grazing by native ungulates afforded by the livestock exclosures generally stimulated bunchgrasses to retain dominance and vitality; native bunchgrasses can replace invasive rhizomatous plants given a reduction in disturbance over time; shrubs increased without ungulate use in shrubland communities; and invasive annuals that established following severe disturbances to the grassland community diminished with aggressive competition from perennial bunchgrasses.
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The book is written in English.
The binding of this edition is Paperback.
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