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The result is often a second growth forest which is less biodiverse than the old growth forest. [6] Patterns of regeneration in secondary forests show that species richness can quickly recover to pre-disturbance levels via secondary succession; however, relative abundances and identities of species can take much longer to recover. [ 2 ]
Old-growth forests are unique, usually having multiple horizontal layers of vegetation representing a variety of tree species, age classes, and sizes, as well as "pit and mound" soil shape with well-established fungal nets. [19] As old-growth forest is structurally diverse, it provides higher-diversity habitat than forests in other stages.
Forests are classified according to physiognomy based on their overall physical structure or developmental stage (e.g. old growth vs. second growth). Forests can also be classified more specifically based on the climate and the dominant tree species present, resulting in numerous different forest types (e.g., Ponderosa pine/Douglas fir forest).
The Biden administration is dropping its efforts to issue a policy to protect old-growth forests — though the president previously touted protecting such forests as an important component of his ...
In the Eastern United States, more than 99 percent of old-growth forests have been cleared for agricultural or developmental purposes, or have been replaced by second-growth forests. [2] The organization's goal is to ensure that some forests are set aside and protected, allowing them to recover their old-growth characteristics.
The Forest Service and federal Bureau of Land Management combined oversee more than 50,000 square miles (129,000 square kilometers) of old growth forests and about 125,000 square miles (324,000 ...
Secondary succession is the secondary ecological succession of a plant's life. As opposed to the first, primary succession, secondary succession is a process started by an event (e.g. forest fire, harvesting, hurricane, etc.) that reduces an already established ecosystem (e.g. a forest or a wheat field) to a smaller population of species, and as such secondary succession occurs on preexisting ...
The just-announced scoping period for an amendment to the Northwest Forest Plan is a critical opportunity for communities to help ensure that changes to the plan will protect old growth, restore ...