- forest
- A dense growth of trees and underbrush covering a large tract of land.
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- forest cover
- The living plants and dead organic matter on the floor of a forest, sometimes restricted to only the plants. See also: basal cover, duff.
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- forest edge
- The boundary or ecotone of a forest where it meets with some other kind of vegetation such as a marsh.
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- forest floor
- The deposits of plant material such as dead leaves and branches on the ground in a woodland. See also: duff, forest cover.
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- forest fragmentation
- The continuing splitting of large forested areas by highways and residences, which changes the habitat. It affects the acclimation and persistence of wildlife and indigenous plant species.
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- forest influences
- A total of the effects or reactions of a woodland on the environmental conditions, such as providing duff as compost, and maintaining uniform stream flow.
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- forest type
- A stand of trees that is fundamentally similar throughout and can be predicted to occur elsewhere under comparable conditions. It includes temporary, permanent, climax, and cover types.
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- forestry
- Applied science dealing with the growth and harvest of desirable trees.
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- boreal forest
- A forest made up mostly of conifers, such as that reaching across North America from Newfoundland to Alaska.
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- brown forest soils
- Those soils with dark brown surface horizons, but becoming lighter-colored beneath. They are rich in humus and are neutral to slightly acidic in composition, commonly appearing under deciduous forests that are quite rich in calcium or other bases. See also: brown soils.
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- cloud forest
- A mountain forest covered by a persistent mist that creates stunted trees and abundant epiphytes.
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- fringing forest
- A strip of woodland along a stream or body of water. See also: gallery forest.
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- gallery forest
- A narrow woodland developed along a stream because of constant and sufficient moisture through a grassland or other open vegetation.
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- krummholz (syn. elfin forest)
- Scrubby, dwarfish growth of trees, often forming a distinctive zone at the tree line of mountains.
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- primary forest (syn. natural forest)
- A tract of trees with minimal impact from humans.
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