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Author: Bruce Leigh Welch Publisher: ISBN: Category : Big sagebrush Languages : en Pages : 220
Book Description
Pioneers traveling along the Oregon Trail from western Nebraska, through Wyoming and southern Idaho and into eastern Oregon, referred to their travel as an 800 mile journey through a sea of sagebrush, mainly big sagebrush ( Artemisia tridentata). Today approximately 50 percent of the sagebrush sea has given way to agriculture, cities and towns, and other human developments. What remains is further fragmented by range management practices, creeping expansion of woodlands, alien weed species, and the historic view that big sagebrush is a worthless plant. Two ideas are promoted in this report: (1) big sagebrush is a nursing mother to a host of organisms that range from microscopic fungi to large mammals, and (2) many range management practices applied to big sagebrush ecosystems are not science based.
Author: Bruce Leigh Welch Publisher: ISBN: Category : Big sagebrush Languages : en Pages : 220
Book Description
Pioneers traveling along the Oregon Trail from western Nebraska, through Wyoming and southern Idaho and into eastern Oregon, referred to their travel as an 800 mile journey through a sea of sagebrush, mainly big sagebrush ( Artemisia tridentata). Today approximately 50 percent of the sagebrush sea has given way to agriculture, cities and towns, and other human developments. What remains is further fragmented by range management practices, creeping expansion of woodlands, alien weed species, and the historic view that big sagebrush is a worthless plant. Two ideas are promoted in this report: (1) big sagebrush is a nursing mother to a host of organisms that range from microscopic fungi to large mammals, and (2) many range management practices applied to big sagebrush ecosystems are not science based.
Author: Bruce Leigh Welch Publisher: ISBN: Category : Big sagebrush Languages : en Pages : 38
Book Description
This paper examines the scientific merits of eight axioms of range or vegetative management pertaining to big sagebrush. These axioms are: (1) Wyoming big sagebrush (Artemisia tridentata ssp.wyomingensis) does not naturally exceed 10 percent canopy cover and mountain big sagebrush (A.t.ssp.vaseyana) does not naturally exceed 20 percent canopy cover; (2) As big sagebrush canopy cover increases over 12 to15 percent, bare ground increases and perennial grass cover decreases; (3) Removing, controlling, or killing big sagebrush will results in a two or three or more fold increase in perennial grass production; (4) Nothing eats it; (5) Biodiversity increases with removing, controlling, thinning, or killing of big sagebrush; (6) Mountain big sagebrush evolved in an environment with a mean fire interval of 20 to 30 years; (7) Big sagebrush is an agent of allelopathy; and (8) Big sagebrush is a highly competitive, dominating, suppressive plant species.
Author: Mark Turner Publisher: Timber Press (OR) ISBN: Category : Gardening Languages : en Pages : 522
Book Description
Featuring more than 1240 stunning color photographs, this comprehensive field guide will remain a trusted, authoritative trailside reference for years to come.
Author: United States. Bureau of Land Management. District Office, Susanville, Calif Publisher: ISBN: Category : Environmental impact analysis Languages : en Pages : 300
Author: Bruce Leigh Welch
Author: Bruce Leigh Welch
Author: George M. Briggs
Author: Bruce Leigh Welch
Author: Mark Turner
Author: United States. Bureau of Land Management. District Office, Susanville, Calif![Alturas 345 Kilovolt (kv) Electric Power Transmission Line Project, Sierra Pacific Power Company, Susanville District, Modoc County, Lassen County, Sierra County [CA], Washoe County [NV] PDF](https://books.google.com/books/content/images/frontcover/9g0xAQAAMAAJ?fife=w80-h100)
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Author: John Harvey Lovell
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