Unit 4: lesson 1 vocabulary

the managing of resource harvesting so that resources are not depleted. resource management harvest the maximum amount of a resource without reducing the amount of future harvests. maximum sustainable yield to harvest resources in ways that minimize impact on the ecosystems and ecological processes that provide the resources. ecosystem-based management scientifically testing different management approaches in an area, one after the other, and then customizing an approach based on the results. adaptive management only some of the trees in a forest are cut at once. selection system the forests were to be managed for recreation, wildlife habitat, mining, and other uses multiple use controlled burns, have helped restore ecosystems that depend on fire prescribed burn the removal of snags following a natural disturbance salvage logging given to products produced using methods they consider sustain-able sustainable forestry certification large-scale plantings of a single crop. monoculture small numbers of mature and healthy seed-producing trees are left standing so that they can reseed the logged area seed-tree approach small numbers of mature trees are left in place to provide shelter for seedlings as they grow shelterwood approach regrowth of trees that were mostly all cut at the same time even-aged regrowth of trees that were cut at different times uneven-aged the clearing of a forest and the replacement of it by another land use. deforestation forest that has never been logged old growth forest