Env Sci Ch 11

2. Using resources without depleting them
4. A method of harvesting trees in which only some of the trees in a forest are cut at one time
8. The process of setting fire to an area of forest under carefully controlled conditions
9. A method of harvesting trees in which a small number of mature trees are left in place to procide shelter for seedlings as they grow
11. A policy that states that the national forests must serve a number of uses (eg recreation, wildlife habitat, mining, grazing, and timber)
12. A condition in timber plantations in which the trees are all different ages
13. Formal recognition by an organization that a product has been produced using methods and materials the organization considers to be sustainable
16. A customized approach to managing resources that has been developed through scientific testing
17. A method of harvesting trees in which all trees in an area are cut at once

1. The amount of resources that can be harvested without reducing the amount of future harvests
3. Clearing a forest for another land use
5. Harvesting resources in ways that minimize the impact on the ecosystems that provide them
6. A forest that has never been logged
7. The large-scale plantings of a single crop
10. 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
14. A condition in timber plantations in which all the trees are the same age
15. The removal of dead trees following a natural occurrence