. Assessing big sagebrush at multiple spatial scales : an example in southeast Oregon. Big sagebrush; Sagebrush; Sage grouse; Habitat (Ecology); Vegetation monitoring; Vegetation dynamics; Range ecology. Determine Mid-Scale Objectives The long-term objective of the SEORMP-FEIS preferred alternative is that 70 percent or more of the million acres that either currently sup- port or could support big sagebrush vegetation would provide big sagebrush canopy cover in classes 3, 4, or 5. This comes out to be million acres or more, million acres of which would be in the Jordan Resource
. Assessing big sagebrush at multiple spatial scales : an example in southeast Oregon. Big sagebrush; Sagebrush; Sage grouse; Habitat (Ecology); Vegetation monitoring; Vegetation dynamics; Range ecology. Determine Mid-Scale Objectives The long-term objective of the SEORMP-FEIS preferred alternative is that 70 percent or more of the million acres that either currently sup- port or could support big sagebrush vegetation would provide big sagebrush canopy cover in classes 3, 4, or 5. This comes out to be million acres or more, million acres of which would be in the Jordan Resource Area. Why 70 percent rather than 100 percent? Seventy percent was an administratively determined, reasonable minimum threshold. It was based on the fact that disturbances, such as wildfire, exotic plant species invasion (for example, cheatgrass and medusahead), and vegetation treatments (for example, seedings of crested wheatgrass and sagebrush control), effectively have taken out hundreds of thousands of acres of sagebrush for varying periods of time (see Figure 10). This means that not every acre capable of supporting big sagebrush does so at any given time, nor can we expect it to. In addition, the 70 percent attempts to strike a reasonable balance regarding land uses by providing a stable forage supply for the livestock industry. Other management out- comes, from 90 percent or more shrubland down to 50 percent or less shrubland, were analyzed in the EIS for comparative purposes. The 70-percent level represents a conservative minimum target of acres supporting class 3, 4, or 5 sagebrush at any given time. Not going below the 70-percent level represents a conservation focus for sagebrush vegetation, so that at least that much sagebrush is retained at any given time across the Jordan Resource Area and the SEORMP area. If grassland increases and approaches the 30-percent maximum, there is no longer a legal basis in the SEORMP for additional land treatments that would decrease s
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