Chapter 12 Flashcards
Maximum sustainable yield
To achieve the maximum amount of resource extraction without depleting the resource from one harvest to the next.
Clear-cutting
All trees in an area are cut, leaving only stumps
Ecosystem-based management
Attempts to manage the harvesting of resources in ways that minimize impact in the ecosystems and ecological processes that provide the resource
Adaptive management
Systematically testing different management approaches and aiming to improve methods as time goes on
Deforestation
The clearing and loss of forests, has altered the landscape and ecosystems of much of our planet
National forest
System consists of 77 million ha(191 million acres) spread across all but few states.
Even-aged
All trees in a given stand are planted at the same age, all trees of the same age
National Forest Management Act
In 1976, the us congress. Mandates that plans for renewable resource management be drawn up for every national forest
Multiple use
National forests were to be managed for recreation, wildlife habitat, mineral extraction, and various other uses
Bureau of land management
Most US rangeland is federally owned and managed
National wildlife refuge
A federal protected area in the US.
National park
Publicly held lands protected from resource extraction and development but open to nature appreciation and various forms of recreation
Land trusts
Local or regional organizations that purchase land with the aim of preserving it in it’s natural condition
Biosphere reserves
Tracts of land with exceptional biodiversity that couple preservation with sustainable development to benefit local people
Forestry
Timber cuts that came closer to mimicking natural disturbances
