| A | B |
|---|
| resource management | using resources without depleting them |
| maximum sustainable yield (MSY) | the amount of a resource that can be harvested without reducing the amount of future harvests |
| ecosystem-based management | harvesting resources in ways that minimize the impact on the ecosystems that provide them |
| adaptive management | a customized approach to managing resources that has been developed through scientific testing |
| even aged | a condition in timber plantations in which all the trees are the same age |
| uneven aged | a condition in timber plantations in which trees are all different ages |
| clear-cutting | a method of harvesting trees in which all trees in an area are cut at once |
| seed-tree approach | a method of harvesting trees in which a small number of mature and healthy seed- producing trees are left standing so they can reseed an area that has been logged |
| shelterwood approach | a method of harvesting trees in which a small number of mature trees are left in place to provide shelter for seedlings as they grow |
| selection system | a method of harvesting trees in which only some of the trees in a forest are cut at one time |
| deforestation | clearing a forest for another land use |
| old-growth forest | a forest that has never been logged |
| multiple use | a policy that states that the national forests must serve a number of uses (e.g., recreation, wildlife, habitat, mining, grazing, and timber) |
| monoculture | the large scale plantings of a single crop |
| prescribed burn | the process of setting fire to an area of forest under carefully controlled conditions; also called controlled burn |
| salvage logging | the removal of dead trees following a natural disturbance |
| sustainable forestry certification | formal recognition by an organization (e.g., the International Organization for Standardization, the sustainable Forestry Initiative, and the Forest Stewardship council) that a product using methods and materials the organization considers to be sustainable |
