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environmetal science vocabulary
chapter 11 vocabulary
16
Environmental Studies
12th Grade
01/04/2013

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Term
resource management
Definition
using resources without depleting them
Term
maximum sustainable yield (MSY)
Definition
the amount of a resource that can be harvested without reducing the amount of future harvests
Term
ecosystem-based management
Definition
harvesting resources in ways that minimize the impact on the ecosystems that provide them
Term
adaptive management
Definition
a customized approach to managing resources that has been developed through scientific testing
Term
even-aged
Definition
a condition in timber plantations in which all the trees are the same age
Term
clear-cutting
Definition
a method of harvesting trees in which all trees in an area are cut at once
Term
seed-tree approach
Definition
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
Term
shelterwood approach
Definition
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
Term
selection system
Definition
a method of harvesting trees in which only some of the trees in a forest are cut at one time
Term
deforestation
Definition
clearing a forest for another land use
Term
old-growth forest
Definition
a forest that has never been logged
Term
multiple use
Definition
a policy that states that the national forests must serve a number of uses
Term
monoculture
Definition
the large-scale plantings of a single crop
Term
prescribed burn
Definition
the process of setting fire to an area of forest under carefully controlled conditions; also called controlled burn
Term
salvage logging
Definition
the removal of dead trees following a natural disturbance
Term
sustainable forestry certification
Definition
formal recognition by an organization that a product has been produced using methods and materials the organization considers to be sustainable
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