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16 Cards in this Set
- Front
- Back
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thick top layer of interlaced leaves |
canopy |
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the northern and southern limit at which trees grow |
tree line |
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forest along the Mississippi River.
one of the most productive forest areas because of the fertile ground along the Mississippi River |
bottomland hardwood forest |
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the care and culture of forest trees |
silviculture |
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any system or object that absorbs carbon dioxide from the environment |
carbon sink or simply a sink |
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young trees |
saplings |
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one type of clear-cutting method which involves removing all the trees from areas that are 100 acres or less |
block cutting |
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groups of tall plants or trees |
stands |
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Who had ideas on how to conserve the forests and was appointed head of the new Forest Service? |
Gifford Pinchot |
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an intensive forest management system that, when applied, causes the forest to grow more high-quality trees that mature faster than they normally would. |
sustained yield management |
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forests that have not been influenced by man or used for timber |
old-growth forests
also called virgin forests |
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forest that grows up after a virgin forest is cut |
secondary forest |
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trees that grow faster, straighter, and have fewer branches |
supertrees |
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most destructive forest fires |
crown fires
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Foresters sometimes deliberately set fire to a forest under controlled conditions. This technique is known as _____. |
prescribed burning |
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some insects cause trees to produce abnormal growths called _____ |
galls |
