Search results
Results from the WOW.Com Content Network
The boreal forest/taiga supports a relatively small variety of highly specialized and adapted animals, due to the harshness of the climate. Canada's boreal forest includes 85 species of mammals, 130 species of fish, and an estimated 32,000 species of insects. [37] Insects play a critical role as pollinators, decomposers, and as a part of the ...
The mixed age of the forest is an important criterion in ensuring that the forest is a relatively stable ecosystem in the long term. A climax stand that is uniformly aged becomes senescent and degrades within a relatively short time to result in a new cycle of forest succession .
Remaining forest in Central Europe today is not generally considered natural forest, but rather a cultural landscape created over thousands of years which consists almost exclusively of replacement communities. The oldest evidence of human and forest interaction in Central Europe is the use of hand axes about 500 thousand years ago.
Site index is a term used in forestry to describe the potential for forest trees to grow at a particular location or "site". Site is defined as "The average age of dominate and/or codominate trees of an even-aged, undisturbed site of intolerant trees at a base age"; [1] furthermore, the word site is used in forestry to refer to a distinct area where trees are found. [2]
Speculations on Pando's age have ranged between 80,000 years to 1 million years old. [7] Many news sources list Pando's age as 80,000 years old, but this claim derives from a now-removed National Park Service web page, which redacted that claim in 2023 and, was inconsistent with the Forest Service's post ice-age estimate. [35]
Between 1991 and 2000, the total area of forest lost in the Amazon rose from 415,000 to 587,000 km 2 (160,000 to 227,000 sq mi), with most of the lost forest becoming pasture for cattle. [73] Seventy percent of formerly forested land in the Amazon, and 91% of land deforested since 1970, have been used for livestock pasture.
As summarized in Rech and others, various studies have dated the buried logs and stumps from the Two Creeks forest using radiocarbon dating and analyzed their growth rings to determine a minimum lifespan for the forest. [3] Initial research into the age of this buried forest indicated an calibrated age range of ~13,840–13,620 cal BP and a ...
This is a list of areas of existing old-growth forest which include at least 10 acres (4.0 hectares) of old growth. Ecoregion information from "Terrestrial Ecoregions of the World". [ 1 ]