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Rangelands: Sierra Nevada Ecosystem Project
From page 1 of the report:
"Historic unregulated grazing, which ended in the early 1900s, created widespread, profound, and, in some places, irreversible ecological impacts. Foothill habitats have suffered physical and biological damage of many riparian systems and virtual replacement of the native perennial flora by Eurasian annuals.
Current livestock grazing practices continue to exert reduced but significant impacts on the biodiversity and ecological processes of many middle- to high-elevation rangelands even though properly managed grazing (appropriate timing, intensity, duration of use, control of cowbirds, and exclusion from wetlands) can be compatible with sustainable ecological functions.
Increases in native perennial grasses are occurring on some east-side sagebrush-steppe rangelands, but the continuing cheatgrass invasion of these habitats indicates that complete restoration of native plant communities is highly unlikely.
Human settlement patterns represent the largest threat to continued sustainability of ecological functions on hardwood rangelands.
Oak woodlands (particularly blue oak) are much more stable than previously thought; concerns about regeneration
are not well founded."
rangelands, grazing-historic impacts, grazing-current effects, restoration of upland rangelands, restoration of meadows and riparian systems, conversion of hardwood rangelands, oak woodland resiliency, historic rangeland ecosystems, effects of early use of rangelands, photo of damaged stream channel, photo of healthy meadow, overgrazing, current conditions, native versus non-native species composition trends, mountain meadows, table of surface types, hardwood rangelands, table of species composition in wet and mesic meadows, changes in hardwood habitat, potential for recovery and sustainable range management, grazing and rangeland strategy
sagegrass, cheatgrass, forbs, big sagebrush, medusahead, filarae, dandelion, wheatgrass, plantain, filaree, bull thistle
June 01, 1996 12:00 AM
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Tahoe National Forest (NF), Plumas (NF), Tahoe (NF), Stanislaus (NF), Toiyabe (NF), Inyo (NF), Lassen (NF), Modoc (NF), El Dorado (NF), Sierra (NF), Sequoia (NF), Willow Creek (Lassen County)
Shasta, Tehama, Butte, Yuba, Nevada, Placer, El Dorado, Amador, Calaberas, Tuolumne, Mariposa, Madera, Fresno, Tulare, Kern, Lassen