Final Environmental Impact Statement

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Vestal Final Environmental Impact Statement Chapter 5 200 Roads that are part of the Forest Development Transportation System that includes all existing and planned roads as well as other special and terminal facilities designated as part of the Forest Development Transportation System. Fuel Breaks Generally wide strips of land 100-300 feet in width on which native vegetation has been modified so that fires burning into them can be more readily controlled. Some fuel breaks contain fire lines such as roads or hand lines that can be widened. Fuel Complex The combination of ground, surface, and canopy fuel strata. Fuel Loading The volume of the available or burnable fuels in a specified area, usually expressed in tons per acre. Fuel Model A set of surface fuel bed characteristics (load and surface-area-to-volume-ratio by size class, heat content, and depth) organized for input to a fire model. Standard fuel models (Anderson 1982) have been stylized to represent specific fuel conditions. Fuel Treatment Any manipulation or removal of fuels to reduce the likelihood of ignition and/or to lessen potential damage and resistance to control, including lopping, chipping, crushing, piling, and burning (synonym for fuel modification). Fuels Goal The organic materials that will support the start and spread of a fire: duff, litter, grass, weeds, forbs, brush, trees, and dead woody materials. Broad, general statement that encompasses the desired future conditions that the U.S. Forest Service seeks to attain. Grass/Forb, Grass/Forb Stage (Structural Stage 1) (See Structural Stages - Structural Stage 1) Guideline Preferred or advisable courses of action; deviations from guidelines are permissible, but the responsible official must document the reasons for the deviation. Hardwood Pertains to broadleaf trees. Herbicide A chemical substance used for killing or suppressing plants. Heritage Resources The physical remains (including but not limited to artifacts, structures, landscape modifications, rock art, trails, or roads) and conceptual content or context (as a
Vestal Final Environmental Impact Statement Chapter 5 setting for legendary, historic, or prehistoric events, such as a sacred area for native peoples) of an area. Ignition (Fire Management) The initiation of combustion. Infrastructure The facilities, utilities, and transportation systems needed to meet public and administrative needs. Insect Epidemic High population levels of insect pests that cause substantial injury to plant or animal hosts. Used synonymously with “Outbreak”. Intensity (Fire Management) How hot a fire is. Specifically, a measure (in BTUs per foot per second) of the energy released per unit of time in an area of actively burning fire. The amount of heat released per foot of fire front per second. Interdisciplinary Team (IDT) A group of individuals with different specialized training assembled to solve a problem or perform a task. The team is assembled out of recognition that no one discipline is sufficiently broad to adequately solve the problem. Through interaction, participants bring different points of view and a broader range of expertise to bear on the problem. Intermittent Stream A stream or portion of a stream that flows, in its natural condition, only during certain times of the year when ground water provides water for streamflow. During dry periods intermittent streams may not have flowing water. Runoff from rainfall or snowmelt is a supplemental source of flow. Landscape Character Particular attributes, qualities, and traits of a landscape that give it an image and make it identifiable or unique. Valued landscape character creates a "sense of place" and describes the image of an area. The landscape character provides a reference for defining the inherent scenic attractiveness classes. Late Succession Ecosystems distinguished by old trees and related structural features (Mehl, 1992). This term encompasses the later stages of stand development that typically differ from earlier stages in structure, composition, function, and other attributes. There are two types of late-successional ponderosa pine defined for the Black Hills. The first type, open-canopy late-successional ponderosa pine, occurs where periodic, low-intensity fires have been part of the ecosystem. These latesuccessional stands would consist of clumps or groups of trees with grasses in the openings between the clumps. They would contain large old trees with open branches, irregular, and flattened crowns. The clumps or groups of trees would contain little down dead material and few small trees. The second type, closedcanopy late-successional ponderosa pine occurs where periodic, low intensity high-frequency fires have not been a significant part of the ecosystem. These 201
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Final Environmental Impact Statement

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