SNES 1101 Chapter Notes - Chapter 10: Foundation Species, Bromus Tectorum, United States Forest Service
17 Nov 2016
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Chapter 10 - sustaining terrestrial biodiversity: the ecosystem approach. Some content in this file is from - g. tyler miller, scott e. spoolman. Uncut or regenerated primary forests that have not been seriously disturbed by human activities or natural disasters for 200 years or more. Second growth forests stands of trees resulting from secondary ecological succession. Managed tracts with uniformly aged trees of one or two genetically uniform species. Forests" ecological services support energy flow and chemical cycling reduce soil erosion. Purify water and air influence local and regional climate store atmospheric carbon. Selective logging intermediate-aged or mature trees in an uneven-aged forest are cut singly or in small groups. Clear cutting the most efficient way for a logging operation to harvest trees. Strip cutting involves clear cutting a strip of trees along the contour of the land within a corridor narrow enough to allow natural regeneration within a few years.
